Energy Suspension 3.1129G Polyurethane Transmission Mount 2001–2010 LB7/LLY/LBZ/LMM Duramax
Energy Suspension 3.1129G Polyurethane Transmission Mount 2001–2010 LB7/LLY/LBZ/LMM Duramax is backordered and will ship as soon as it is back in stock.
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Product Care information
Product Care information
At BackWoods Diesel, we ensure all parts are stored in a clean, dry, and temperature-controlled environment to prevent damage. Our team inspects each part for quality and maintains them according to manufacturer guidelines before shipping.
Delivery and Shipping
Delivery and Shipping
At BackWoods Diesel, we prioritize fast and reliable shipping. All orders are carefully packed and dispatched promptly to ensure your parts arrive safely and on time, so you can keep your projects running smoothly without delay.
Description
Description
Replace your worn or broken factory rubber transmission mount with the Energy Suspension 3.1129G Black Polyurethane Transmission Mount Bushing, designed for 2001–2010 Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L Duramax diesel engine and Allison 1000 transmission.
Energy’s Hyper-Flex polyurethane mounts are the perfect balance of strength and comfort — soft enough for street use yet strong enough for racing or off-road. Unlike GM’s rubber mounts (which have been unchanged since 1956 and lack a safety locking feature), this mount uses a patented metal interlocking design that effectively controls torque and resists drivetrain damage.
Features & Benefits:
- Genuine Energy Suspension performance mount
- Hyper-Flex polyurethane resists fluid and road contaminants
- Stronger than OEM rubber mounts while still absorbing vibrations
- Maintains proper driveshaft angle to prevent premature wear
- Unique safety interlock design prevents torque-related failures
- Direct bolt-on replacement — installs like OEM
Part Numbers:
Energy Suspension #: 3.1129G (Black)
OEM Replaces #: 15113135, 15031704, 15068560
UPC: 703639052098
Vehicle Fitment:
2001–2010 Chevrolet Silverado 2500HD / 3500HD (6.6L Duramax w/ Allison 1000)
2001–2010 GMC Sierra 2500HD / 3500HD (6.6L Duramax w/ Allison 1000)
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