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Knox Trailers · Cooling System
561.09138
In stock · ships from Knoxville
This is a 1-3/8 inch inner diameter straight silicone coolant hose, 36 inches long, with 4-ply reinforcement.
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Universal fit
The inventory title lists the size as 1.5 inches, but the part number 561.09138 is consistently documented as a 1-3/8 inch (1.375”) ID hose. This straight hose is a universal fit for any cooling system connection requiring that diameter and can be cut to length.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 5 of 5.
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It is used in heavy-duty truck cooling systems to carry hot coolant between the engine, radiator, and heater core. Silicone hoses like this are typically replaced when the original rubber hose becomes swollen, cracked, or leaks, offering better heat resistance and durability.
Part Number: 561.09138
SILICONE HOSE 1.5IN X 36 IN
Dealer: Knox Trailers
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