Product Description
MAHLE GS33757 is an OE-quality valve cover gasket & injector seal kit for the 2001–2004 GM 6.6L Duramax LB7. It restores proper sealing around the valve covers and injectors to help eliminate oil and combustion leaks.
- Application: 6.6L Duramax LB7 (VIN “1”), 2001–2004
- OE-style materials and fit
- Manufacturer Part Number (MPN): GS33757
- GTIN/UPC: 027067973269
Fitment
- 2001, 2002, 2003, 2004 Chevrolet Silverado 2500/3500 (6.6L LB7)
- 2001, 2002, 2003, 2004 GMC Sierra 2500/3500 (6.6L LB7)
What’s Included
Valve cover gasket & injector seal components required to service LB7 valve cover and injector sealing areas (OE-style replacement kit).
Cross Reference / Comparable Kits
- MAHLE VS50549 Valve Cover Gasket Set (LB7) — related gasket set often paired during service.
- MAHLE GS33500A Fuel Injector Seal Kit (LB7, single-injector kit) — complementary parts when resealing individual injectors.
- DTech DT660027 Valve Cover Gasket & Injector Install Kit (LB7) — comparable LB7 service kit (third-party reference).
- Bostech/BT-Power BT7101118 Injector Seal Kit (LB7) — injector reseal alternative (third-party reference).
FAQ
Will this fit my LB7?
Yes. It’s designed for 2001–2004 GM 6.6L Duramax LB7 (VIN “1”).
Does this kit include everything for an injector reseal?
It includes the valve cover and injector sealing components for an OE-style service. For additional single-injector reseal pieces or extras, pair with MAHLE GS33500A as needed.
Is this OE quality?
Yes. MAHLE Original uses OE-equivalent or better materials for durability and proper fit.
What’s the GTIN/UPC?
027067973269.
