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Volvo · Hardware & Fasteners
21021925
In stock · ships from Knoxville
This is a coolant bypass pipe (also called a water tube or connection pipe) for Volvo D13 and Mack MP8 heavy-duty diesel engines.
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Verified fitment for 4 applications
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All confirmed applications for this part number.
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Fits multiple Volvo, Mack, and Renault heavy-duty trucks and buses equipped with D13/DXi13 engines.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
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It routes coolant through the engine's bypass circuit, helping to regulate temperature. The pipe should be replaced if it becomes corroded, cracked, or develops a leak, as coolant loss can lead to overheating and engine damage.
Part Number: 21021925
CONNETION
Vendor: McMahon Truck Center
Dealer: Knox Trailers
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