Welded Water Pump LBZ LMM LML 6.6L Duramax 2006–2016 GM 19386797 ACDelco 252-898

The welded ACDelco 252-898 / GM 19386797 water pump is the go-to solution for Duramax owners who demand durability and performance. Built using a brand-new OEM ACDelco water pump core, this unit is professionally welded at the impeller shaft — permanently securing the connection and eliminating the risk of impeller slippage that can occur under high load, towing, or in tuned applications.

If you're running a modified truck or simply want peace of mind, this upgraded pump is a must-have for your LBZ, LMM, or LML Duramax.

Key Benefits of the Welded Design:
- Prevents Impeller Slippage: A critical failure point on factory-style press-fit pumps.
- Enhanced Reliability Under Load: Ideal for towing, heavy use, or tuned trucks.
- OEM Quality Core: Genuine ACDelco 252-898 / GM 10386797 pump, not a knockoff.
- Includes Gasket & O-Rings: Everything needed for a clean, leak-free install.
- Backed by GM OE Quality: Built to exact factory specs for fit, form, and flow.

ACDelco Part Number: 252-898
GM Part Number: 19386797 
Interchange Part Numbers: 1302030, SK1302030, US72, WPGM610V, DP1226B, 43273, DP1226, MWP515, AW6053, 2521026, 252-1026, 251748, 251-748