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Water Pumps

79 Products
Shop direct-replacement semi truck water pumps — matched to your engine to stop overheating with an exact, drop-in fit.
  • Volvo Water Pump KWP9941 Water Pump KWP9941Same As Volvo 8149941, Volvo 8148460, Volvo 1547155. Replaces AW6222.
    Regular price
    $313.99
    Sale price
    $313.99
    Regular price
  • Water Pump 800.316GC1219A Water Pump 800.316GC1219ASame As Mack 316GC1219A, Mack 316GC1219AX, Haldex RW4215X, Haldex RW6215, Mack 316GC524E, 316GC524EP2, 316GC528E. Casting Number 360GB443.
    Regular price
    $217.99
    Sale price
    $217.99
    Regular price
  • Water Pump 800.3662006801 Same As Automann 800.3662006801, Freightliner A-366-200-68-01, Freightliner A3662006801.Same As Automann 800.3662006801, Freightliner A-366-200-68-01, Freightliner A3662006801.
    Regular price
    $217.99
    Sale price
    $217.99
    Regular price
  • Water Pump 800.3684449 Water Pump 800.3684449Same As Automann 800.3684449, Cummins 3687130, Cummins 3684449, Cummins 4386570, 45052HD.
    Regular price
    $423.99
    Sale price
    $423.99
    Regular price
  • Water Pump 800.9062006201 Same As Automann 800.9062006201, Freightliner 9062006201.Same As Automann 800.9062006201, Freightliner 9062006201, RA9062006201.
    Regular price
    $529.99
    Sale price
    $529.99
    Regular price
  • Water Pump KWP0401 Water Pump KWP0401Detroit Diesel Mercedes DD13, DD15 Mechanical. Same As Automann 800.47220401, EA4722000401, 6134, A4722000401, A4722001001, A4722001001, 4722001001.
    Regular price
    $79.99
    Sale price
    $79.99
    Regular price
  • Water Pump KWP2542 Same As Automann 800.23531257, Keene KWP2542, Detroit Diesel 23531257, 23531304, 23532542, 23535015, 23535017, Haldex RW4124X, R23531257, Casting Number 23530427.Same As...
    Regular price
    $569.99
    Sale price
    $569.99
    Regular price

Water Pumps Overview

The water pump keeps coolant moving through the block and radiator; a failing pump — bad bearing, leaking seal, or eroded impeller — causes overheating and can strand the truck. Van Horn Truck Parts carries heavy-duty water pumps and gaskets cross-referenced to Cummins, Detroit, PACCAR, Mack, and Automann part numbers.

Match the pump by your engine make and model, and confirm the inlet/outlet and pulley/gasket configuration.

Mechanic & Fitment Specs:

  • Match by: Engine make/model, inlet/outlet, pulley/gasket configuration
  • Cross-references: Cummins, Detroit, PACCAR, Mack, Automann
  • Buying tip: Replace the gasket and inspect the belt/tensioner with the pump