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PAI · Cooling System
381807
In stock · ships from Knoxville
This is an engine water pump assembly for Caterpillar C15, C16, C18, and 3406E series heavy-duty diesel engines.
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Verified fitment for 4 applications
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All confirmed applications for this part number.
Caterpillar
Caterpillar
Confirmed fitment for these Caterpillar engine series, commonly used in heavy-duty trucks (Freightliner, Kenworth, Peterbilt, etc.) and other equipment. Does not include installation hardware.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 10 of 10.
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It circulates coolant through the engine block and radiator to maintain optimal operating temperature, preventing overheating and engine damage. Replacement is typically needed when the pump develops leaks, the bearing becomes noisy or fails, or the impeller wears out, causing coolant flow issues. This PAI aftermarket unit directly replaces the OEM Caterpillar pump (part number 161-5719) and includes the gasket and O-rings for a reliable seal.
Part Number: 381807
WATER PUMP CAT 1615719
Vendor: PAI Industries
Dealer: KP Services Crossville
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