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OEM L5P Complete Water Pump Replacement Kit | 251801 | 2017-2021 GM Duramax 6.6L L5P

Pricing: $206.96

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This AC Delco pump is the GM Original Equipment Engine Water Pump that circulates coolant through your vehicle's radiator and engine system to help maintain proper engine temperature and performance. Stick with the high quality fit and finish of the OE parts to keep your truck running at its peak performance.


  • Thoroughly tested to ensure reliable and leak free performance
  • Uniform wall sections and smooth coolant flow cavities for efficient operation
  • Heat treated impeller shafts are supported by high quality roller bearings for smooth operation in virtually all conditions
  • Built to the OE specification to provide the best fit and finish


  • Water Pump
  • Water Pump Cover
  • Seals and Gaskets


  • 251801
  • 251801
  • AC Delco
  • New

Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • W8.0000” x H4.0000” x L2.0000”
  • Free Shipping