Upgrading your 1999–2006 Silverado, Sierra, or full-size SUV with new motor mounts? Speed Engineering's polyurethane motor mounts are a direct-fit upgrade over factory rubber mounts — built from 3/16" mild steel with TIG-welded construction, polyurethane bushings, and a powder coated black finish. Stiffer than stock rubber mounts for improved engine control and reduced movement under load. Installation hardware is included. Note that chassis and engine hardware are not included.
Note: Installation hardware is included. Chassis and engine hardware are not included.
Features:
- Polyurethane Bushings — Stiffer than factory rubber mounts for improved engine control and reduced movement under hard acceleration
- 3/16" Mild Steel Construction — Heavy-duty TIG-welded fabrication for long-term durability
- Powder Coated Black Finish — Corrosion resistant, clean appearance
- Direct Fit for 1999–2006 GMT800 Platform — Bolt-in replacement for factory motor mounts
- Hardware Included — Chassis and engine hardware not included
- Compatible with 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines
Vehicle Applications:
Chevrolet Silverado 1500 (2WD/4WD)
- 1999 Chevrolet Silverado 1500 (2WD/4WD)
- 2000 Chevrolet Silverado 1500 (2WD/4WD)
- 2001 Chevrolet Silverado 1500 (2WD/4WD)
- 2002 Chevrolet Silverado 1500 (2WD/4WD)
- 2003 Chevrolet Silverado 1500 (2WD/4WD)
- 2004 Chevrolet Silverado 1500 (2WD/4WD)
- 2005 Chevrolet Silverado 1500 (2WD/4WD)
- 2006 Chevrolet Silverado 1500 (2WD/4WD)
GMC Sierra 1500 (2WD/4WD)
- 1999 GMC Sierra 1500 (2WD/4WD)
- 2000 GMC Sierra 1500 (2WD/4WD)
- 2001 GMC Sierra 1500 (2WD/4WD)
- 2002 GMC Sierra 1500 (2WD/4WD)
- 2003 GMC Sierra 1500 (2WD/4WD)
- 2004 GMC Sierra 1500 (2WD/4WD)
- 2005 GMC Sierra 1500 (2WD/4WD)
- 2006 GMC Sierra 1500 (2WD/4WD)
Chevrolet Tahoe (2WD/4WD)
- 1999 Chevrolet Tahoe (2WD/4WD)
- 2000 Chevrolet Tahoe (2WD/4WD)
- 2001 Chevrolet Tahoe (2WD/4WD)
- 2002 Chevrolet Tahoe (2WD/4WD)
- 2003 Chevrolet Tahoe (2WD/4WD)
- 2004 Chevrolet Tahoe (2WD/4WD)
- 2005 Chevrolet Tahoe (2WD/4WD)
- 2006 Chevrolet Tahoe (2WD/4WD)
GMC Yukon (2WD/4WD)
- 1999 GMC Yukon (2WD/4WD)
- 2000 GMC Yukon (2WD/4WD)
- 2001 GMC Yukon (2WD/4WD)
- 2002 GMC Yukon (2WD/4WD)
- 2003 GMC Yukon (2WD/4WD)
- 2004 GMC Yukon (2WD/4WD)
- 2005 GMC Yukon (2WD/4WD)
- 2006 GMC Yukon (2WD/4WD)
Cadillac Escalade (2WD/4WD)
- 2002 Cadillac Escalade (2WD/4WD)
- 2003 Cadillac Escalade (2WD/4WD)
- 2004 Cadillac Escalade (2WD/4WD)
- 2005 Cadillac Escalade (2WD/4WD)
- 2006 Cadillac Escalade (2WD/4WD)
Cadillac Escalade EXT (2WD/4WD)
- 2002 Cadillac Escalade EXT (2WD/4WD)
- 2003 Cadillac Escalade EXT (2WD/4WD)
- 2004 Cadillac Escalade EXT (2WD/4WD)
- 2005 Cadillac Escalade EXT (2WD/4WD)
- 2006 Cadillac Escalade EXT (2WD/4WD)
Chevrolet Avalanche (2WD/4WD)
- 2002 Chevrolet Avalanche (2WD/4WD)
- 2003 Chevrolet Avalanche (2WD/4WD)
- 2004 Chevrolet Avalanche (2WD/4WD)
- 2005 Chevrolet Avalanche (2WD/4WD)
- 2006 Chevrolet Avalanche (2WD/4WD)
FAQ
What is the advantage of polyurethane motor mounts over factory rubber mounts?
Polyurethane bushings are significantly stiffer than factory rubber mounts, which reduces engine movement under hard acceleration and improves drivetrain response. The tradeoff is slightly more NVH (noise, vibration, harshness) transmitted into the cabin compared to stock rubber mounts — a common and acceptable tradeoff on performance builds.
What hardware is included?
Installation hardware is included with the mounts. Note that chassis and engine hardware are not included.
What material are these mounts made from?
3/16" mild steel with TIG-welded construction and a powder coated black finish. Polyurethane bushings are pressed in.
Do these fit both 2WD and 4WD applications?
Yes. These motor mounts fit both 2WD and 4WD applications across the 1999–2006 GMT800 platform.
What engines are these mounts compatible with?
These mounts are compatible with GM LS V8 engines including 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, and LSA.
