Mahle Motorsport
Ø102mm bore, Ø107mm, OD slip in

Fits:
PORSCHE 964 / 993
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PC102-002
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Ø102mm bore, Ø109mm, OD machine fit

Fits:
PORSCHE 964 / 993
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PC102-001
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
PORSCHE 964 / 993 Turbo Piston 3.6L to 3.8L (Ø109mm cyl.)
Bore: 102 mm
Stroke:76.40 mm
Rod: 127 mm
Comp Height: 31.80 mm
Pin diameter: 23.00 mm
Crown vol: 22.6cc
Weight: 452
Compression Ratio (head vol): 9.2:1 (90cc)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PS102-021
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

Fits:
PORSCHE 964 / 993 Turbo Piston
3.6L to 3.8L (slip-in cyl.)
Bore: 102 mm
Stroke:76.40 mm
Rod: 127 mm
Comp Height: 31.80 mm
Pin diameter: 23.00 mm
Crown vol: 9.7cc
Weight: 435
Compression Ratio (head vol): 8:1 (90cc)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PS102-019
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) TURBO 1994-96
102 mm

Fits:
PORSCHE 964 / 993 Turbo 3.6L to 3.8L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PP102-013
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
Mahle Motorsport Parts for High-Output, Precision-Built Porsche Engine Rebuilds
Mahle Motorsport parts are engineered for drivers who demand maximum strength, stability and performance from their engines. Designed using advanced materials and motorsport-grade manufacturing processes, these components deliver exceptional durability, improved thermal management and superior combustion efficiency. Ideal for performance rebuilds, high-compression builds, turbocharged applications and track-focused engines, Mahle Motorsport parts provide the reliability and power retention required in the most demanding conditions.
Whether refreshing a street-performance engine or building a full racing spec power unit, Mahle Motorsport components elevate durability, responsiveness and long-term reliability.
What Mahle Motorsport Parts Do
Mahle Motorsport components are engineered to enhance key
engine functions:
- Improve
combustion stability with precision-machined piston crowns and ring
lands
- Enhance
strength and reliability under high-RPM and high-boost loads
- Increase
heat resistance through specialist coatings and advanced alloys
- Reduce
friction, improving performance and engine efficiency
- Support
consistent sealing for better compression and power output
- Stabilise
internal dimensions during extreme temperature changes
- Optimise airflow and burn characteristics, aiding overall performance
These components are specifically designed to withstand motorsport-level stresses that exceed standard performance expectations.
Why Motorsport Components Wear or Fail
Even high-quality racing components face extreme stress.
Common reasons for wear or failure include:
- High
combustion temperatures, especially in turbocharged or track engines
- Detonation
or pre-ignition, stressing piston crowns and ring lands
- Oil
starvation, causing accelerated wear on piston skirts and bearings
- Thermal
expansion exceeding material tolerance
- Contamination
from poor lubrication or debris
- Over-revving,
causing piston or rod stress
- Incorrect tuning, leading to lean conditions and overheating
Symptoms may include loss of compression, oil consumption, smoke, knocking, piston slap, or visible damage during teardown.
Why You Should Replace Worn Parts with Mahle Motorsport Components
Upgrading with precision-engineered Mahle Motorsport parts designed to exceed original performance characteristics ensures superior durability and consistency in high-performance environments.
Key benefits include:
- Stronger resistance to detonation and thermal stress
- Improved sealing for higher compression and maximum power
- Exceptional wear resistance for longer engine life
- Optimised performance for turbocharged, supercharged or naturally aspirated engines
- Smoother engine operation with reduced friction
- Reliability under racing or track-day loads
- Confidence during extended high-RPM operation
These components are a must-have for anyone building a performance-focused Porsche engine that needs to withstand motorsport-level conditions.