Product Description
Stop leaks before they start with the MAHLE GS33752 Water Pump Gasket Kit for 2001–2010 GM 6.6L Duramax (LB7/LLY/LBZ/LMM). Engineered to OE quality for a precise seal at the water pump, this kit helps restore proper coolant flow and protects your Duramax from overheating and premature water-pump wear during towing, work, and daily use.
Fitment
- 2001–2010 Chevrolet Silverado 2500/3500 HD – 6.6L Duramax (LB7, LLY, LBZ, LMM)
- 2001–2010 GMC Sierra 2500/3500 HD – 6.6L Duramax (LB7, LLY, LBZ, LMM)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- MAHLE C32062 – Water Pump Mounting Gasket (01–05 LB7/LLY)
- MAHLE K31904 – Water Pump Seal (01–16 LB7/LLY/LBZ/LMM/LML)
- MAHLE C31900 – Thermostat Housing Gasket (01–16)
- MAHLE GS34005 – Engine Oil Cooler Gasket Set (01–16)
Helpful Notes
Clean mating surfaces thoroughly and follow GM/Mahle torque and sealant guidance. Inspect pump impeller and bearings; replace thermostat(s) and coolant as needed for a complete service.
FAQ
Will GS33752 fit my 2001–2010 Duramax?
Yes. It’s designed for 6.6L LB7, LLY, LBZ, and LMM engines from 2001–2010.
What’s included?
The water pump mounting gaskets needed to properly seal the pump during installation (see product photos/details on this page).
Do I need additional gaskets or seals?
Many techs add the water pump seal (MAHLE K31904) and, on LB7/LLY, the pump mounting gasket (MAHLE C32062).
Specifications for Mahle GS33752
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | GS33752 |
| Engine Compatibility | 2001–2010 GM 6.6L Duramax (LB7/LLY/LBZ/LMM) |
| UPC | 027067970893 |
| GTIN | 00027067970893 |
| Shipping | Calculated at checkout; optional shipping insurance available |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
