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Gates 21837 Premium Molded Coolant Hose

Free shipping on orders over $29.99

$12.81

$ 5 .99 $5.99

In Stock

About this item

  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and to ensure perfectly sealed conditions
  • EPDM tube; synthetic fiber knit reinforcement; heat-, ozone- and chemical coolant-resistant EPDM cover
  • Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)


Our Molded Coolant Hoses are manufactured to fit upper, lower, bypass, heater and other coolant applications with OEM-quality specifications, saving you time, money and energy from going to your OE dealer for radiator hose replacements. Gates' molded coolant hose line is the most comprehensive line on the replacement market.


Fredb
Reviewed in the United States on March 31, 2025
It seems like a good hose. I cut this hose to make my upper radiator hose for my 1957 gmc with a LM7 motor. It worked perfectly for me. The top radiator opening is centered at the top of the radiator, it’s a tall radiator. I cut the hose in the middle, cut out a few inches, and installed a splice with a 1/8” npt vent opening. Everything lined up perfectly for me.The hose is good quality. I definitely would buy it again.
Ben Sauter
Reviewed in the United States on October 11, 2021
Nice product for a very good price.
Andy P.
Reviewed in the United States on January 3, 2020
Great hose however they didnt provide the dimensions, and the center section between the bends is a bit longer than I needed, by like 4 in. So I'm still looking for the right one.
Best reviewer in the world
Reviewed in the United States on January 19, 2020
Great fit with chevy sb rad and ls3 waterpump