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Free shipping over $100 · USA & Canada
Free shipping over $100 · USA & Canada
Flywheel Bolt Kit for 2001 - 2021 6.6L Chevrolet Duramax FW100

Flywheel Bolt Kit

Chevrolet Duramax 6.6L

2001–2021 applications

PART # FW100

$60.25 - $60.25
$60.25
$60.25 - $60.25
$60.25
Availability:
in stock, ready to be shipped
Free shipping is available on orders over $100 shipping to the USA or Canada.
Why Upgrade Your Flywheel Bolts?

Factory bolts can fatigue over time or may not be designed for increased power levels. Upgrading ensures:

  • Consistent torque retention
  • Reduced risk of bolt stretch or failure
  • Long-term drivetrain reliability
Key Features:
  • High-Strength Construction - Manufactured from premium-grade alloy steel to withstand extreme clamping loads and high torque applications.
  • Precision Fitment - Designed specifically for Duramax 6.6L (LB7, LLY, LBZ, LMM, LML, L5P) ensuring perfect thread engagement and seating.
  • Improved Clamping Force - Provides secure flywheel retention under high RPM and heavy load conditions—ideal for towing, racing, and performance builds.
  • Direct Replacement - Meets or exceeds OEM specifications for a hassle-free install during clutch or flywheel service.

Your application

The right fit comes first.

Browse the compatible applications below, or check your exact vehicle before adding this product to your cart.

Check my vehicle
Flywheel Bolt Kit - 2001-2021 6.6L Chevrolet Duramax

Inside the box

Know exactly what arrives.

Included components for this product.

QtyComponent
8 Flywheel bolts
1 Socket

Engineering details

Small details. A secure connection.

The bolts pass through the flywheel and engage the crankshaft flange. Tightening creates the clamping load that holds the mounting faces together.

The crankshaft fastening joint A simplified section shows a bolt passing through the mounted component and engaging the crankshaft. The bolt head bears against the assembly to hold the joint together. Crankshaft Thread engagement Bolt head Flywheel
Simplified joint section. Bolt positions, quantities, proportions and washer arrangements vary by kit.

Steel construction.

Alloy steel flywheel bolts for the listed Duramax application.

At the seating surface.

The bolt heads bear against the mounting surface to clamp the flywheel in place.

Install as a matched set.

Use the correct flywheel fasteners and the kit-specific procedure for surface preparation, lubricant placement and tightening sequence.

Before you begin

A good install starts here.

Review the instructions and any application-specific requirements before you begin.

Read installation guide Download installation manual

Before you order

Which applications does this kit fit?

For 2001–2021 Chevrolet Duramax 6.6L. Match the engine and original fastener configuration before ordering.

Is the flywheel included?

This is a flywheel fastener kit. The flywheel is not included. Match the kit to the specific engine and transmission assembly.

Where can I find the installation procedure?

Use the linked installation manual for this kit’s preparation, lubricant and tightening requirements.

How does the warranty work?

Review the warranty policy for coverage, eligibility, and claim requirements.

Read warranty termsRegister your warranty
California Proposition 65 warning

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

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