Gates 21131 Premium Molded Radiator Coolant Hose

The Gates 21131 is a premium molded coolant hose engineered to OEM-quality specifications for reliable, long-lasting cooling system performance. Pre-shaped for a precise, leak-free fit, this hose is designed as a direct replacement for upper, lower, bypass, and heater coolant applications.

Key Features:

• EPDM construction — EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone-, and chemical coolant-resistant EPDM cover for exceptional durability
• Electrochemical degradation resistance — specifically engineered to combat ECD, the leading cause of premature coolant hose failure and unexpected tube cracking
• Vacuum collapse resistance — material compound resists collapse under vacuum, reducing the need for internal springs in many applications
• Pre-shaped molded design — formed to fit for perfectly sealed conditions right out of the box
• Cut-to-fit flexibility — extra material allows customization to your specific application
• Wide temperature range — rated from -40°F to +257°F (-40°C to +125°C)
• Industry standards compliance — meets SAE 20R4 Class D2 and DIN 73411 Class A requirements

Cross-Reference Part Numbers: ACDelco 20115S, Carquest 21131, Caterpillar 9M6289, Dayco 422848, Durkee-Atwood 41227, Goodyear 61227, IHC 422848C1, IHC 529406C1, Motorcraft KM-1396, NAPA 7836, Towmotor 354137

Note: Gates recommends replacing hose clamps each time a new coolant hose is installed. Not for use in fuel or oil transfer applications.