WEHRLI CUSTOM FAB WCF100158 2001-2010 LB7 LLY LBZ LMM DURAMAX HD ENGINE MOUNTS

Product Description

wehrli custom fab wcf100158, duramax engine mounts, lb7 lly lbz lmm motor mounts, heavy duty duramax motor mounts, polyurethane duramax engine mounts, gm 6.6 duramax engine mount upgrade, high horsepower duramax mounts, duramax drivetrain stability upgrade

The WEHRLI CUSTOM FAB WCF100158 HEAVY DUTY DURAMAX ENGINE MOUNTS are engineered to eliminate the weakness of factory rubber mounts and provide the durability required for high horsepower Duramax builds. Designed specifically for 2001-2010 GM 6.6L Duramax LB7, LLY, LBZ and LMM trucks, these heavy-duty mounts significantly reduce engine flex, prevent broken OEM mounts, and maintain proper engine alignment under extreme load.

At the core of the WCF100158 mounts are performance polyurethane bushings designed to control drivetrain movement while maintaining proper engine positioning within the chassis. The mounts retain OEM alignment characteristics while dramatically improving strength and longevity. This makes them an excellent upgrade for trucks running performance tuning, upgraded turbos, sled pulling setups, or high-torque towing applications.

Each kit includes left and right engine mounts, high-grade mounting hardware, and thread locker for installation. The mounts are finished with durable powder coating for corrosion resistance and long-term durability. Because they are designed for performance use, they will transmit more engine vibration compared to stock rubber mounts.

Key Features:

• Heavy-duty engine mounts designed for high horsepower Duramax builds
• Durable polyurethane bushings improve engine stability
• Reduces engine flex and drivetrain deflection
• Prevents failure of factory rubber engine mounts
• Maintains proper OEM engine alignment
• Includes left and right mounts, hardware, and thread locker
• Durable powder coated finish

Fitment:

• 2001 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LB7
• 2002 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LB7
• 2003 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LB7
• 2004 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LB7
• 2004.5-2005 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LLY
• 2006-2007 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LBZ
• 2007.5-2010 Chevy Silverado 2500HD / 3500HD 6.6L Duramax LMM
• 2001-2010 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7 / LLY / LBZ / LMM

FAQ

Why upgrade Duramax engine mounts?

Factory rubber engine mounts can fail on high horsepower Duramax trucks. Upgrading to heavy-duty mounts helps prevent excessive engine movement and broken mounts under heavy load.

Will these mounts increase vibration?

Yes. Because they use polyurethane bushings instead of soft rubber, they will transmit more engine vibration into the chassis. This is normal for performance engine mounts.

What engines do these mounts fit?

These mounts fit 2001-2010 GM 6.6L Duramax LB7, LLY, LBZ and LMM engines in Silverado and Sierra 2500HD/3500HD trucks.

Does the kit include hardware?

Yes. The kit includes both engine mounts, high-grade mounting hardware, and thread locker for installation.

What OEM mounts do these replace?

The WCF100158 mounts replace common GM engine mount part numbers including 15829220, 15134284, and 15072626.