Part Number: 106437-12-PKG
Brand: AASCO Motorsports

AASCO Fitment Guide

Upgrade your manual Porsche 996 Carrera with a complete AASCO lightweight steel flywheel and Sachs Performance clutch package designed to reduce rotating mass, improve engine response, and refresh the clutch system at the same time. This kit pairs an approximately 20 lb AASCO lightweight steel flywheel with compatible Sachs Performance clutch components for select Porsche 996 Carrera manual applications.

Compared to the approximately 32 lb factory dual-mass flywheel setup, this AASCO lightweight steel flywheel removes about 12 lb of rotating mass from the engine. The result is a sharper, more responsive flat-six that revs more freely, responds more directly, and feels more alive during downshifts, heel-toe shifting, and spirited driving.

At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 996 Carrera has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.

We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.

This complete kit is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 996 Carrera while also replacing the clutch, pressure plate, release bearing, and related hardware with a matched Sachs Performance clutch package. The AASCO flywheel is a lightweight steel design, which can be a nice balance for street-driven cars that want sharper response without moving to the lightest possible flywheel setup.

Fitment

Fits select manual transmission Porsche 996 911 models:

• 1999–2004 Porsche 911 Carrera, 996 chassis, non-turbo, manual transmission

• 1999–2004 Porsche 911 Carrera 4, 996 chassis, non-turbo, manual transmission

• 2002–2004 Porsche 911 Carrera 4S, 996 chassis, non-turbo, manual transmission, where confirmed

This kit is intended for select manual transmission Porsche 996 Carrera-family applications using the included AASCO lightweight steel flywheel and Sachs Performance clutch package.

Product Details

• Complete AASCO lightweight steel flywheel and Sachs Performance clutch kit

• Part number: 106437-12-PKG

• Includes AASCO lightweight steel flywheel

• Includes Sachs Performance pressure plate: 883082999736

• Includes Sachs clutch disc: 881861999856

• Includes release bearing and required installation hardware

• Designed for select Porsche 996 Carrera-family manual applications

• Compatible with select 3.4L and 3.6L applications listed by AASCO

• AASCO lightweight steel flywheel weight: approximately 20 lb

• Factory flywheel weight: approximately 32 lb

• Approximate rotational mass savings: 12 lb

• Lightweight steel flywheel construction

• Reduces rotating engine mass compared to the factory dual-mass flywheel setup

• Helps the engine rev faster

• Improves throttle response and rev-matching feel

• Matched flywheel and Sachs Performance clutch package

• Complete kit listing

Driving Feel

A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.

Because the flywheel is significantly lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.

The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.

Which Version Should I Buy?

AASCO offers several lightweight flywheel and clutch options across the Porsche 911 platform. The correct choice depends on your chassis, engine, transmission, and clutch package.

This listing is for the AASCO 106437-12-PKG complete kit. It is the right choice if you want the AASCO lightweight steel flywheel, Sachs Performance pressure plate, Sachs clutch disc, release bearing, and installation hardware together as a matched package for your compatible 996 Carrera-family manual.

Steel vs. Aluminum Lightweight Flywheel

AASCO offers both aluminum and steel lightweight flywheel options for many Porsche applications.

The lightweight steel flywheel is a good choice for drivers who want sharper response than the factory dual-mass flywheel while retaining a slightly more street-balanced setup than the lightest aluminum flywheel option.

The aluminum flywheel option is generally the more aggressive lightweight choice and may provide the quickest engine response, while the steel flywheel can offer a nice middle ground for street and performance use.

Complete Kit vs. Flywheel-Only

This is a complete flywheel and clutch package. It is the better choice if your clutch is worn, your pressure plate is worn or unknown, or you want the flywheel and clutch components matched together from the start.

Choose this 106437-12-PKG complete kit if:

• Your clutch is worn or due for replacement

• Your pressure plate is worn, heat-spotted, damaged, or unknown

• Your release bearing or related hardware needs replacement

• You want everything matched together as a complete AASCO / Sachs package

• You are converting from the factory dual-mass flywheel setup to a complete lightweight steel flywheel and Sachs Performance clutch setup

Choose the flywheel-only option instead if:

• Your existing clutch and pressure plate setup is compatible and in good condition

• You are specifically replacing only the flywheel

• Your release bearing and related clutch hardware are already being handled separately

• You already know which clutch and pressure plate setup will be used with the flywheel

For the flywheel-only listing, use AASCO part number 106437-12.

If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.

Installation Notes

Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.

Before installation, confirm all supplied flywheel, clutch, pressure plate, release bearing, hardware, and related components match the vehicle and intended clutch configuration.

Availability

AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.

Shipping

• Shipping dimensions: 15 x 15 x 12 in

• Shipping weight: 38 lb

Part Number: 106437-12
Brand: AASCO Motorsports

AASCO Fitment Guide

Upgrade your manual Porsche 996 Carrera with an AASCO lightweight steel flywheel designed to reduce rotating mass and improve engine response. This approximately 20 lb lightweight steel flywheel replaces the heavier factory dual-mass flywheel setup on compatible Porsche 996 Carrera models, helping the engine rev more freely, respond more sharply, and feel more alive during downshifts, heel-toe shifting, and spirited driving.

Compared to the approximately 32 lb factory flywheel setup, this AASCO lightweight steel flywheel removes about 12 lb of rotating mass from the engine. The result is a sharper, more responsive flat-six that feels more eager and more connected without moving to the lightest possible flywheel option.

At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 996 Carrera has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.

We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.

This flywheel is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 996 Carrera while staying with a lightweight steel flywheel design. Steel can be a nice balance for street-driven cars that want sharper response and improved rev-matching feel without going to the most aggressive lightweight flywheel setup available.

Fitment

Fits select manual transmission Porsche 996 911 models:

• 1999–2004 Porsche 911 Carrera, 996 chassis, non-turbo, manual transmission

• 1999–2004 Porsche 911 Carrera 4, 996 chassis, non-turbo, manual transmission

• 2002–2004 Porsche 911 Carrera 4S, 996 chassis, non-turbo, manual transmission, where confirmed

This flywheel is intended for select manual transmission Porsche 996 Carrera-family applications using a compatible clutch and pressure plate setup.

This flywheel is not intended for Tiptronic, 996 Turbo, 996 GT3, 997, 987, 981, 718 / 982, 991, 992, or non-996 Carrera applications unless specifically confirmed.

Product Details

• AASCO lightweight steel flywheel

• Part number: 106437-12

• Flywheel-only listing

• AASCO lightweight steel flywheel weight: approximately 20 lb

• Factory flywheel weight: approximately 32 lb

• Approximate rotational mass savings: 12 lb

• Designed for select Porsche 996 Carrera-family manual applications

• Compatible with select 3.4L and 3.6L applications listed by AASCO

• Lightweight steel construction

• Reduces rotating engine mass compared to the factory dual-mass flywheel setup

• Helps the engine rev faster

• Improves throttle response and rev-matching feel

• Clutch components, pressure plate, release bearing, and related installation hardware are not included unless specifically stated

Driving Feel

A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.

Because the flywheel is significantly lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.

The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.

Which Version Should I Buy?

AASCO offers several lightweight flywheel and clutch options across the Porsche 911 platform. The correct choice depends on your chassis, engine, transmission, and clutch package.

This listing is for the AASCO 106437-12 lightweight steel flywheel only. It is the right choice if your car already has a compatible clutch and pressure plate setup in good condition, or if you are specifically replacing only the flywheel.

Steel vs. Aluminum Lightweight Flywheel

AASCO offers both aluminum and steel lightweight flywheel options for many Porsche applications.

The lightweight steel flywheel is a good choice for drivers who want sharper response than the factory dual-mass flywheel while retaining a slightly more street-balanced setup than the lightest aluminum flywheel option.

The aluminum flywheel option is generally the more aggressive lightweight choice and may provide the quickest engine response, while the steel flywheel can offer a nice middle ground for street and performance use.

Complete Kit vs. Flywheel-Only

This is a flywheel-only listing. Clutch components, pressure plate, release bearing, and related installation hardware are not included.

Choose this 106437-12 flywheel-only option if:

• Your existing clutch and pressure plate setup is compatible and in good condition

• You are specifically replacing only the flywheel

• Your release bearing and related clutch hardware are already being handled separately

• You already know which clutch and pressure plate setup will be used with the flywheel

Choose the complete AASCO lightweight steel flywheel and Sachs Performance clutch kit instead if:

• Your clutch is worn or due for replacement

• Your pressure plate is worn, heat-spotted, damaged, or unknown

• Your release bearing or related hardware needs replacement

• You want everything matched together as a complete AASCO / Sachs package

• You are unsure what clutch and pressure plate setup is currently installed

For the complete flywheel and clutch package, use AASCO part number 106437-12-PKG.

If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.

Installation Notes

Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.

Before installation, confirm the flywheel is compatible with the vehicle, clutch, pressure plate, release bearing, and related installation components being used.

Availability

AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.

Shipping

• Shipping dimensions: 15 x 15 x 4 in

• Shipping weight: 22 lb

Part Number: 106411-11-PKG
Brand: AASCO Motorsports

AASCO Fitment Guide

Upgrade your manual Porsche 911 with a complete AASCO billet aluminum lightweight flywheel and Sachs Performance clutch package designed to reduce rotating mass, dramatically improve engine response, and refresh the clutch system at the same time. This kit pairs the AASCO 13 lb lightweight flywheel with compatible Sachs Performance clutch components, making it a great option for owners who want a matched flywheel and clutch setup instead of purchasing the flywheel by itself.

Compared to the heavier factory 32 lb flywheel setup, the AASCO lightweight flywheel reduces rotating engine mass and helps the engine rev more freely, respond more sharply, and feel more alive during downshifts, heel-toe shifting, and spirited driving.

At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 996 or 997 has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.

We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.

This complete kit is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 911 while also replacing the clutch, pressure plate, release bearing, and related hardware with a matched Sachs Performance clutch package. The AASCO flywheel also uses a serviceable friction surface. With proper maintenance and normal use, the flywheel body is designed to be reused long-term — so future clutch services typically only require replacing the friction surface rather than the entire flywheel.

Fitment

Fits select manual transmission Porsche 911 models:

• 1999–2001 Porsche 911 Carrera / Carrera 4, 996 chassis, non-turbo

• 2005–2008 Porsche 911 Carrera / Carrera 4, 997 chassis, non-turbo

This kit is for select 996 / 997 non-turbo manual applications using the Sachs Performance clutch and pressure plate setup included with this package.

For 2002–2004 Porsche 996 Carrera / Carrera 4 applications, AASCO lists a different pressure plate configuration. Use part number 106411-11-PKG-02-04 instead.

This kit is not intended for Turbo, GT3, or 997 Carrera S / Carrera 4S applications unless specifically confirmed.

Product Details

• Complete AASCO lightweight flywheel and Sachs Performance clutch kit

• Part number: 106411-11-PKG

• Includes AASCO billet aluminum lightweight flywheel: 106411-11

• Includes Sachs Performance pressure plate: 883082999736

• Includes Sachs clutch disc: 881861999856

• Includes release bearing and hardware

• Flywheel weight: approximately 13 lb

• Factory flywheel weight: approximately 32 lb

• Approximate rotational mass savings: 19 lb compared to the factory flywheel

• Complete kit shipping weight: approximately 34 lb

• Replaceable friction surface design

• Long-term serviceable flywheel body

• Reduces rotating engine mass compared to the factory flywheel

• Helps the engine rev faster

• Improves throttle response and rev-matching feel

• Matched flywheel and Sachs Performance clutch package

Driving Feel

A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.

Because the flywheel is significantly lighter than stock, some additional drivetrain noise, gear rollover sound, or chatter may be present compared to the factory dual-mass flywheel setup. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.

The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.

Which Version Should I Buy?

AASCO offers several similar-looking lightweight flywheel options for the 996 / 997 Carrera platform, and the correct part depends on your model year and clutch / pressure plate setup.

This listing is for the AASCO 106411-11-PKG complete kit. It is the right choice if you want the AASCO lightweight flywheel, Sachs Performance pressure plate, Sachs clutch disc, release bearing, and hardware together as a matched package.

Good Candidates for This Complete Kit

This complete kit is generally intended for:

• 1999–2001 Porsche 996 Carrera / Carrera 4 non-turbo manual applications listed by AASCO

• 2005–2008 Porsche 997 Carrera / Carrera 4 non-turbo manual applications listed by AASCO

• Cars with a worn clutch, worn pressure plate, or unknown clutch service history

• Cars converting from the factory dual-mass flywheel setup to an AASCO lightweight flywheel and Sachs Performance clutch setup

• Drivers who want everything matched together as a complete AASCO / Sachs package

Flywheel-Only vs. Complete Kit

Choose the 106411-11 flywheel-only listing if your car already has a compatible clutch and pressure plate setup in good condition, or if you are replacing an existing AASCO 106411-11 flywheel and reusing compatible clutch components.

Choose this 106411-11-PKG complete kit if your clutch is due for replacement, your pressure plate is worn or unknown, or you want the flywheel and clutch components matched together from the start.

Important Model-Year Note

For 2002–2004 Porsche 996 Carrera / Carrera 4 applications, use 106411-11-PKG-02-04 instead. AASCO lists those cars with a different pressure plate configuration.

For 2005–2008 Porsche 997.1 Carrera S / Carrera 4S 3.8L applications, this is not the primary kit we would point you toward without confirmation. The correct AASCO option depends on the pressure plate configuration:

• If your 997.1 Carrera S / Carrera 4S is using the factory OEM pressure plate, AASCO lists the flywheel-only option as 106417-11.

• If your 997.1 Carrera S / Carrera 4S is using, or being converted to, the Sachs Performance clutch / pressure plate setup, AASCO lists the complete kit as 106411-11-02-04-PKG.

If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.

Service Parts

• Replaceable friction surface: HS9587T-POR

• Friction surface bolt package: HS9587T-POR-BLT-PKG

Installation Notes

AASCO notes that the larger portion of the clutch disc spring carrier must face toward the flywheel. If the clutch disc is installed backwards, the clutch diaphragm spring may contact the clutch disc, which can result in clutch failure and may not be covered under warranty.

Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.

Important Notes

This listing is for the complete AASCO lightweight flywheel and Sachs Performance clutch package listed under part number 106411-11-PKG.

Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.

Before installation, compare the new flywheel, clutch, pressure plate, release bearing, and hardware to the original components being replaced.

Availability

AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.

Shipping

• Shipping dimensions: 15 x 15 x 4 in

• Shipping weight: 34 lb