06-16 6.6L Duramax Water Pump and Housing Assembly

Original price was: $145.00.Current price is: $129.95.

2006-2016 6.6L Duramax Water Pump with Housing

SKU: 43274BH Category:


2006 – 2016 6.6L GM/Chevrolet Duramax Diesel Water Pump with Housing

Fits: LBZ, LMM, LML, and LGH Engines from 2006 – 2016

Gates # 43274BH
OEM Reference # 12637105 / 251-748

Gates Water Pumps are recognized in the industry for their durability and superior quality. Every Gates Water Pump is constructed with premium alloy materials and a 100% functional test of seals and bearings along with a 100% leakage test for both the casting and assembled water pump.


  • The shaft and hub are precisely ground to exactly fit original equipment fan clutches
  • The unitized seal protects the bearings and provides leak-free, long-life performance
  • The one-piece bearing assembly has factory-sealed bearings that are computer matched for low friction
  • The quality-forged housing is specially formed to ensure maximum coolant flow
  • The precision balanced impeller increases water flow, and extends seal and bearing life
  • The no-sealant-required gasket allows for fast, easy installation.

Additional information

Weight 7 lbs