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17-20 GM 6.6L L5P Duramax Mahle Water Pump Outlet Pipe Gasket

17-20 GM 6.6L L5P Duramax Mahle Water Pump Outlet Pipe Gasket
$3.51

  • Part Number: C33756
  • Est. Ship Time: Usually Ships In 1-2 Business Days
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Fits: 2017-2020 GM 6.6L L5P Duramax

OE-style coolant pipe O-ring designed to seal the water pump outlet pipe interface on certain engines; matches Mahle part C33756(cross-ref GM/ACDelco 12644927). Ideal when replacing the pipe O-ring on the cooling system to eliminate leaks. Mahle C33756 is typically a coolant pipe O-ring/gasket that seals the water pump outlet to coolant pipe connection — important on trucks like 2017-2020 GM 6.6L Duramax L5P to prevent coolant leaks and maintain proper cooling system pressure. No RTV or sealant is usually required; lubricate with coolant during install.

Mahle: C33756

 
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