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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram

Aasco

Aasco
About Aasco

Aasco for Porsche

Aasco Performance Inc. was founded in 1995 by brothers Dennis and Randall Aase who's passion for Porsche Motorsports has expanded over 80 years of combined experience and expertise in quality race proven parts and services.100% American made - Designed and manufactured in our Southern California facility.

A Quick Look at Aasco

Aasco Performance Inc. was founded in 1995 by brothers Dennis and Randall Aase who's passion for Porsche Motorsports has expanded over 80 years of combined experience and expertise in quality race proven parts and services.100% American made - Designed and manufactured in our Southern California facility.

Choosing the Right Fit for Your Porsche

Where Aasco is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Typical reasons to choose these Aasco parts include sharper clutch engagement, reduced rotating mass, and improved durability for fast-road or track-focused Porsche use, often combined with clutch replacement to avoid repeat labour.
  • Common real-world triggers for replacement include clutch slip under load, high bite point, judder on take-off, or noise from worn flywheels, especially on higher-mileage cars or those used spiritedly.
  • Practical tip: some lightweight clutch and flywheel setups can increase drivetrain chatter; suitability for daily driving depends on the specific design and specification chosen.
  • Practical tip: when the gearbox is out, it is sensible to address related wear items and oil leaks such as the rear main seal to avoid future labour duplication.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Engine Tuning — Engine tuning parts for Porsche are typically chosen to improve drivability, throttle response, or support hardware changes such as intake, exhaust, or forced induction where listed. They can also help refine running after repairs, provided the engine is mechanically healthy.

Clutches / Flywheels — Clutch and flywheel components for Porsche are replaced when there is slip, judder, noise, or during major drivetrain work. Upgraded parts are often selected to handle higher torque or give a sharper, more direct response where appropriate.

Gearbox / Transmission — Gearbox and transmission parts are used when there are issues such as whining, hard or noisy shifts, leaks, or when refreshing a high-mileage Porsche drivetrain. Correct compatibility with manual, Tiptronic, or PDK applications is essential.

Flywheel / Torque — Flywheels and torque-related components are replaced when there is judder, excessive play, heat damage, or when upgrading for different drivability characteristics on a Porsche. The right choice helps balance smoothness, response, and durability.

Special Offer Parts — Special offer parts are often used when tackling common Porsche wear items such as brakes, suspension, ignition, or service components, allowing several items to be refreshed together during planned maintenance.

  • Tip: before performance tuning, check compression or leak-down, fueling health, sensor data, and for any boost or vacuum leaks so that calibration changes are not masking underlying faults.
  • Tip: when replacing clutches or flywheels on a Porsche, consider a complete kit and, where applicable, new bolts and associated release components to make best use of the labour involved.

Explore Aasco at Design911

View the current Aasco range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 17 to 32 (of 37 products)
1 2 3
Special Offer
106402-12
Product Information
Product Information
Lightweight Steel Flywheel.
240mm / 9 bolt with trigger

aasco

Fits:
Porsche 911 3.2L 1987-89 with G50 Gearbox

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106402-12
106402-12
93010203303
930102033BX

The product you are viewing cross references to these numbers
106435-12-PKG
Product Information
Product Information
Lightweight Steel Flywheel.
includes Sachs Performance clutch kit

Fits:
Porsche Cayman GT4 3.8L 2015-2017

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106435-12-PKG
106435-12-PKG
98111401280
98111691380
98111691381
99711608002
98111401281

The product you are viewing cross references to these numbers
Special Offer
106425-12
Product Information
Product Information
Lightweight Steel Flywheel.
UPRATED

Only with SACHS performance clutch.
Sachs pressure plate: 883082_999736
Sachs friction plate: 881861_999856
Release bearing: Aasco type (supplied)

aasco

Fits:
Porsche 987.2 Boxster S 3.4L 2009-12
Porsche 987.2 Cayman S 3.4L 2009-12
Porsche 981 Boxster S 3.4L 2013>>
Porsche 981 Cayman S 3.4L 2013>>

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106425-12
106425-12
10642512
9G211401220
9G211401222
9G211401221

The product you are viewing cross references to these numbers
Special Offer
HS9587T-POR
Product Information
Product Information
Friction plate for single mass flywheels. With fitting kit.

aasco

Fits:
Porsche 986/987/987C all

Porsche 996/997 (NOT TURBO / GT3)

Special Offer
106423-12
Product Information
Product Information
Lightweight Steel Flywheel.

Only with SACHS performance clutch.
Sachs pressure plate: 883082_999736
Sachs friction plate: 881861_000017
Release bearing: OE type

aasco

Fits:
Porsche 987.2 Boxster S 3.4L 2009-12
Porsche 987.2 Cayman S 3.4L 2009-12
Porsche 981 Boxster S 3.4L 2013>>
Porsche 981 Cayman S 3.4L 2013>>

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106423-12
106423-12
10642312
9G211401220
9G211401222
9G211401221

The product you are viewing cross references to these numbers
Special Offer
106430-12
Product Information
Product Information
Lightweight steel Flywheel.
STEEL / 10-bolt crank

aasco

Fits:
Porsche 997.2 TURBO 3.8L 2010-14

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106430-12
106430-12
9G111401251

The product you are viewing cross references to these numbers
Special Offer
106428-12
Product Information
Product Information
Lightweight steel flywheel.

aasco

Fits:
Porsche 987.2 Boxster 2.9L
Porsche 987C.2 Cayman 2.9L

Features:
• Light-weight 18LBS for improved performance and drastically reduced M.O.I.
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106428-12
106428-12
9G211401200
9G211401201
9G211401202

The product you are viewing cross references to these numbers
Special Offer
106424-12
Product Information
Product Information
Lightweight Steel Flywheel.
OEM pressure plate.
Includes Aasco clutch release bearing.

OE or Sachs pressure plate 883082_000884

aasco

Fits:
Porsche 997.2 C2S/C4S 3.8L 2009-12
Porsche 991 C2S/C4S 3.8L 2012-14

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106424-12
106424-12
9G111401201
9G111401202
99111401200
99111401201
99111401202

The product you are viewing cross references to these numbers
Special Offer
106422-12
Product Information
Product Information
Lightweight Steel Flywheel.
OEM pressure plate.

OE or Sachs pressure plate 883082_000884

aasco

Fits:
Porsche 987.2 Boxster S 3.4L 2009-12
Porsche 987.2 Cayman S 3.4L 2009-12
Porsche 981 Boxster S 3.4L 2013>>
Porsche 981 Cayman S 3.4L 2013>>

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106422-12
106422-12
9G211401220
9G211401221
9G211401222

The product you are viewing cross references to these numbers
Special Offer
106417-11
Product Information
Product Information
Lightweight Aluminium Flywheel with Steel Friction Plate

aasco

Fits:
Porsche 997 C2S / C4S 3.8L 2005-08

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106417-11
106417-11
99711401202
99711401202
99711401201
99711401200

The product you are viewing cross references to these numbers
Special Offer
106415-11
Product Information
Product Information
Lightweight Aluminium Flywheel.

Fits:
Porsche 911 2.0L 1965-69 with 901 Gearbox

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106415-11
106415-11
90110220100
90110202601
90110202602

The product you are viewing cross references to these numbers
106413-11
Product Information
Product Information
Lightweight Aluminium Flywheel with Steel Friction Plate

aasco

Fits:
Porsche 993 3.6L 1996-98 (OBDII ONLY)
Porsche 993 TURBO 3.6L 1996-98 (OBDII ONLY)
Porsche 996 TURBO 3.6L 1999-05
Porsche 997 TURBO 3.6L 2006-13
Porsche 996 GT3 / 997 GT3 3.6L 1999-13

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106413-11
106413-11
96411401250
99711401251
96411401202

The product you are viewing cross references to these numbers
Special Offer
106412-11
Product Information
Product Information
Lightweight Aluminium Flywheel kit. Single mass
(includes Bolt kit BLT6411)
Weight: 6kg

aasco

Fits:
Porsche 986 Boxster / Boxster S 2.5L / 2.7L / 3.2L 1997-04
Porsche 987.1 Boxster / Boxster S 2.7L / 3.2L / 3.4L 2005-09
Porsche 987C.1 Cayman / Cayman S 2.7L / 3.4L 2005-09
Porsche RS60 SPYDER 3.4L 2008

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106412-11
106412-11
98611401205
98611401201
98611401204
98611401206
BLT6411

The product you are viewing cross references to these numbers
Special Offer
106411-11
Product Information
Product Information
Lightweight Aluminium Flywheel with Steel Friction Surface

aasco

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1999-04 (Non Turbo)
Porsche 997 Carrera 3.6L 2005-09 (Non Turbo / S)

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminium for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106411-11
99611401204
99611401203
99611401205

The product you are viewing cross references to these numbers
Special Offer
106408-12
Product Information
Product Information
Lightweight Steel Flywheel.
225mm / 9 bolt / 8lbs / big bore.

Fits:
Porsche 911 3.0L 1980-83

Porsche equivalent number: 93010221500

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106408-12
106408-12
93010221500

The product you are viewing cross references to these numbers
106407-12
Product Information
Product Information
Lightweight Steel Flywheel.
240mm 9 bolt big bore

aasco

Fits:
Porsche 911 3.3L Turbo (935) 1980-88

Porsche equivalent number: 93010221300

Features:
• Light-weight for improved performance and drastically reduced M.O.I. (Moment of Inertia)
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials for the flywheel like treated steel and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106407-12
106407-12
93010221300
930102213X

The product you are viewing cross references to these numbers
DISPLAYING 17 to 32 (of 37 products)
1 2 3