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Porsche > 911 & 912 (1965-1989) > 911 1987-1989 3.2L G50 > Engine Rebuild Parts > Engine Cylinders / Liners / Pistons >

JE Pistons

JE Pistons

DISPLAYING 1 to 15 (of 15 products)
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 3.00mm Oversize - 93010398901, PCG5035692, 93010398103, 93010399001, 93010398902, 93010398104, 93010399002, 93010399091 - JE-381258, 381258
4
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 3.00mm Oversize
381258
Product Information
Product Information
JE Piston - Set of 6
Forged from 4032 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2ltr (10.0:1)

Engine Size : 3.2ltr
Bore Size: 98.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.77mm
Compression Ratio: 10.0:1
Oversize: 3.00mm
Material: 4032 Aluminium Alloy

JE designs are specifically engineered for extreme applications up to and including professional competition. In this environment, the higher compression ratios, high boost or heavy nitrous use necessitate the higher tensile strength of 4032 and 2618 aluminium alloy, which has been optimized for aftermarket Nikasil cylinders. The JE Piston Porsche series now include low friction skirt coatings and are lighter than before, improving both performance and longevity.

The Dome/Dish require no deburring or preparation and feature a smooth flowing radii for excellent flame travel.

4032 Aluminium Alloy
Pistons manufactured from 4032 wrought aluminium alloy are designed for high performance applications where a strong and quiet piston is required. These pistons require less initial piston to cylinder wall clearance and are quieter at start-up. Ideal for street/road use

Piston Features:
• Accumulator Grooves
• Contact Reduction Grooves
• Double Broach Oilers
• Skirt Coating
• Under crown Milling for Weight Reduction
• Pin Fitting, Wire Locks and Rings Included



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

381258
93010398901
PCG5035692
93010398103
93010399001
93010398902
93010398104
93010399002
93010399091

The product you are viewing cross references to these numbers
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 5.00mm Oversize - 93010398901, PCG5035692, 93010398103, 93010399001, 93010398902, 93010398104, 93010399002, 93010399091 - JE-381259, 381259
4
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 5.00mm Oversize
381259
Product Information
Product Information
JE Piston - Set of 6
Forged from 4032 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2ltr (10.0:1)

Engine Size : 3.2ltr
Bore Size: 100.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.77mm
Compression Ratio: 10.0:1
Oversize: 5.00mm
Material: 4032 Aluminium Alloy

JE designs are specifically engineered for extreme applications up to and including professional competition. In this environment, the higher compression ratios, high boost or heavy nitrous use necessitate the higher tensile strength of 4032 and 2618 aluminium alloy, which has been optimized for aftermarket Nikasil cylinders. The JE Piston Porsche series now include low friction skirt coatings and are lighter than before, improving both performance and longevity.

The Dome/Dish require no deburring or preparation and feature a smooth flowing radii for excellent flame travel.

4032 Aluminium Alloy
Pistons manufactured from 4032 wrought aluminium alloy are designed for high performance applications where a strong and quiet piston is required. These pistons require less initial piston to cylinder wall clearance and are quieter at start-up. Ideal for street/road use

Piston Features:
• Accumulator Grooves
• Contact Reduction Grooves
• Double Broach Oilers
• Skirt Coating
• Under crown Milling for Weight Reduction
• Pin Fitting, Wire Locks and Rings Included



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

381259
93010398901
PCG5035692
93010398103
93010399001
93010398902
93010398104
93010399002
93010399091

The product you are viewing cross references to these numbers
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 7.00mm Oversize - 93010398901, PCG5035692, 93010398103, 93010399001, 93010398902, 93010398104, 93010399002, 93010399091 - JE-381260, 381260
4
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) 7.00mm Oversize
381260
Product Information
Product Information
JE Piston - Set of 6
Forged from 4032 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2ltr (10.0:1)

Engine Size : 3.2ltr
Bore Size: 102.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.77mm
Compression Ratio: 10.0:1
Oversize: 7.00mm
Material: 4032 Aluminium Alloy

JE designs are specifically engineered for extreme applications up to and including professional competition. In this environment, the higher compression ratios, high boost or heavy nitrous use necessitate the higher tensile strength of 4032 and 2618 aluminium alloy, which has been optimized for aftermarket Nikasil cylinders. The JE Piston Porsche series now include low friction skirt coatings and are lighter than before, improving both performance and longevity.

The Dome/Dish require no deburring or preparation and feature a smooth flowing radii for excellent flame travel.

4032 Aluminium Alloy
Pistons manufactured from 4032 wrought aluminium alloy are designed for high performance applications where a strong and quiet piston is required. These pistons require less initial piston to cylinder wall clearance and are quieter at start-up. Ideal for street/road use

Piston Features:
• Accumulator Grooves
• Contact Reduction Grooves
• Double Broach Oilers
• Skirt Coating
• Under crown Milling for Weight Reduction
• Pin Fitting, Wire Locks and Rings Included



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

381260
93010398901
PCG5035692
93010398103
93010399001
93010398902
93010398104
93010399002
93010399091

The product you are viewing cross references to these numbers
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) STD Size - 93010398901, PCG5035692, 93010398103, 93010399001, 93010398902, 93010398104, 93010399002, 93010399091 - JE-381257, 381257
4
JE Piston Set Forged 4032 Aluminium Alloy. Porsche 911 3.2ltr (10.0:1) STD Size
381257
Product Information
Product Information
JE Piston - Set of 6
Forged from 4032 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2ltr (10.0:1)

Engine Size : 3.2ltr
Bore Size: 95.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.77mm
Compression Ratio: 10.0:1
Oversize: Standard (STD)
Material: 4032 Aluminium Alloy

JE designs are specifically engineered for extreme applications up to and including professional competition. In this environment, the higher compression ratios, high boost or heavy nitrous use necessitate the higher tensile strength of 4032 and 2618 aluminium alloy, which has been optimized for aftermarket Nikasil cylinders. The JE Piston Porsche series now include low friction skirt coatings and are lighter than before, improving both performance and longevity.

The Dome/Dish require no deburring or preparation and feature a smooth flowing radii for excellent flame travel.

4032 Aluminium Alloy
Pistons manufactured from 4032 wrought aluminium alloy are designed for high performance applications where a strong and quiet piston is required. These pistons require less initial piston to cylinder wall clearance and are quieter at start-up. Ideal for street/road use

Piston Features:
• Accumulator Grooves
• Contact Reduction Grooves
• Double Broach Oilers
• Skirt Coating
• Under crown Milling for Weight Reduction
• Pin Fitting, Wire Locks and Rings Included



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

381257
93010398901
PCG5035692
93010398103
93010399001
93010398902
93010398104
93010399002
93010399091

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (10.5:1) - 353284 - JE-353284
4
JE Piston Set. Porsche 911 3.2L 12V (10.5:1)
353284
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (10.5:1)

Engine Size : 3.2
Bore Size: 95.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 10.5
Dome volume: 41.7cc
Oversize: STD

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353284
353284

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (10.5:1) - 353287 - JE-353287
4
JE Piston Set. Porsche 911 3.2L 12V (10.5:1)
353287
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (10.5:1)

Engine Size : 3.2
Bore Size: 98.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 10.5
Dome volume: 38.6cc
Oversize: 3.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353287
353287

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (10.5:1) - 353290 - JE-353290
4
JE Piston Set. Porsche 911 3.2L 12V (10.5:1)
353290
Product Information
Product Information
JE Piston- Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (10.5:1)

Engine Size : 3.2
Bore Size: 100.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 10.5
Dome volume: 36.5cc
Oversize: 5.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353290
353290

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (10.5:1) - 353292 - JE-353292
4
JE Piston Set. Porsche 911 3.2L 12V (10.5:1)
353292
Product Information
Product Information
JE Piston - Set of 6

Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (10.5:1)

Engine Size : 3.2
Bore Size: 102.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 10.5
Dome volume: 34.3cc
Oversize: 7.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353292
353292

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (11.5:1) - 353285 - JE-353285
4
JE Piston Set. Porsche 911 3.2L 12V (11.5:1)
353285
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy


jepiston

Fits:
Porsche 911 3.2L 12V (11.5:1)

Engine Size : 3.2
Bore Size: 95.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 11.5
Dome volume: 47.0cc
Oversize: STD

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353285
353285

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (11.5:1) - 353288 - JE-353288
4
JE Piston Set. Porsche 911 3.2L 12V (11.5:1)
353288
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (11.5:1)

Engine Size : 3.2
Bore Size: 98.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 11.5
Dome volume: 44.2cc
Oversize: 3.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353288
353288

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (11.5:1) - 353291 - JE-353291
4
JE Piston Set. Porsche 911 3.2L 12V (11.5:1)
353291
Product Information
Product Information
JE Piston - Set of 6

Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (11.5:1)

Engine Size : 3.2
Bore Size: 100.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 11.5
Dome volume: 42.3cc
Oversize: 5.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353291
353291

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (11.5:1) - 353293 - JE-353293
2
JE Piston Set. Porsche 911 3.2L 12V (11.5:1)
Black Friday Sale
353293
Product Information
Product Information
JE Piston Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (11.5:1)

Engine Size : 3.2
Bore Size: 102.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 11.5
Dome volume: 40.4cc
Oversize: 7.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.


2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353293
353293

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (9.5:1) - 353283 - JE-353283
4
JE Piston Set. Porsche 911 3.2L 12V (9.5:1)
353283
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (9.5:1)

Engine Size : 3.2
Bore Size: 95.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 9.5
Dome volume: 35.1cc
Oversize: STD

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353283
353283

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (9.5:1) - 353286 - JE-353286
4
JE Piston Set. Porsche 911 3.2L 12V (9.5:1)
353286
Product Information
Product Information
JE Piston - Set of 6
Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (9.5:1)

Engine Size : 3.2
Bore Size: 98.00mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 9.5
Dome volume: 31.6cc
Oversize: 3.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353286
353286

The product you are viewing cross references to these numbers
JE Piston Set. Porsche 911 3.2L 12V (9.5:1) - 353289 - JE-353289
4
JE Piston Set. Porsche 911 3.2L 12V (9.5:1)
353289
Product Information
Product Information
JE Piston - Set of 6

Forged from 2618 Aluminium Alloy

jepiston

Fits:
Porsche 911 3.2L 12V (9.5:1)

Engine Size : 3.2
Bore Size: 100.0mm
Stroke: 74.40mm
Rod length: 127.00mm
Compression Distance : 32.80mm
Compression Ratio: 9.5
Dome volume: 29.20cc
Oversize: 5.00mm

Designed for Porsche Air-cooled 911 engines compatible with a Nickel Ceramic bore, these pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined and all new applications include skirt coating and 3D undercrown milling. Piston clearances designed for aluminum cylinders, steel/iron cylinders may require additional clearance.

2618 Aluminium Alloy
Pistons manufactured from 2618 wrought aluminium alloy are designed for racing and very demanding applications. These environments necessitate the higher strength 2618 aluminium alloy. When exposed to heat, 2618 aluminium alloy expands 15% more than 4032 aluminium alloy therefore the initial piston to cylinder wall needs to be 15% greater. This difference is most noticeable during cold start. When running at operating temperature both 2618 and 4032 pistons have approximately the same clearances.  

Includes:
• Accumulator Grooves
• Skirt Coating
• 3D Lightweight Undercrown Milling
• Pin fitting and wire locks
• 9310 high carbon alloy or tool steel wrist pins
• Rings Included

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

353289
353289

The product you are viewing cross references to these numbers
DISPLAYING 1 to 15 (of 15 products)
Also found on these pages
About JE Pistons

JE Pistons for High-Output, High-Strength & Precision-Built Porsche Engine Rebuilds

JE Pistons are engineered for engines that need uncompromising strength, exceptional reliability and maximum performance. Manufactured from forged aluminium using motorsport-grade techniques, JE components deliver superior durability under extreme cylinder pressures, high RPM loads and elevated combustion temperatures. These pistons are a top choice for performance road builds, turbocharged applications, high-compression setups and competition-focused Porsche engines.

Whether you’re building a reliable street performer or a full racing engine, JE Pistons provide the toughness, stability and precision needed to extract the best from your powerplant.

What JE Pistons Do

JE Pistons enhance engine performance and durability by:

  • Providing exceptional structural strength for boosted or high-RPM operation
  • Reducing reciprocating mass for improved throttle response
  • Increasing combustion efficiency with advanced crown and skirt designs
  • Offering superior heat resistance under extreme load
  • Maintaining consistent sealing with precision-machined ring grooves
  • Reducing friction, improving smoothness and efficiency
  • Supporting aggressive tuning without sacrificing reliability

These pistons are engineered to handle the demands that standard cast pistons cannot tolerate.

Why Pistons Commonly Fail

Internal combustion engines place enormous stress on pistons—especially in modified or aging powerplants. Common piston failures include:

  • Detonation and pre-ignition, damaging crowns and ring lands
  • Oil starvation, leading to scuffing, seizure or skirt collapse
  • Thermal overload, often in turbo or track environments
  • Material fatigue from high mileage or frequent high-rev use
  • Incorrect tuning, creating lean conditions and excessive heat
  • Excessive boost pressure, overwhelming cast pistons
  • Protective coating wear, causing friction and heat issues

Symptoms include smoke, low compression, knocking noises, oil consumption and visible piston scoring.

Why You Should Replace Old Pistons with JE Forged Components

Upgrading to precision-engineered JE forged pistons—designed to surpass original performance and durability levels—provides major benefits for any serious rebuild.

Key advantages include:

  • Superior strength under extreme boost or high RPM
  • Improved compression retention and sealing efficiency
  • Reduced risk of piston failure in racing or track conditions
  • Enhanced power delivery with optimised combustion characteristics
  • Longer lifespan thanks to premium-grade forging materials
  • Smoother, more responsive engine performance
  • Confidence when running aggressive tunes, high compression or forced induction

JE Pistons are an essential upgrade for builders targeting motorsport-grade reliability.

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