Gates Engine Coolant Bypass Hose 21187
Gates Engine Coolant Bypass Hose 21187

Gates Engine Coolant Bypass Hose P/N:21187

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$26.99
MPN: 21187
Item Package Quantity: 1
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Gates Engine Coolant Bypass Hose P/N:21187
Gates Engine Coolant Bypass Hose P/N:21187
$26.99

Keep coolant circulating and your engine at its proper operating temperature with the Gates Engine Coolant Bypass Hose 21187, a premium molded replacement hose. It's a direct-fit replacement for the 1973-1979 Audi Fox, 1980-1984 Audi 4000, 1974-1980 Volkswagen Dasher, 1975-1984 Volkswagen Rabbit, 1975-1983 Volkswagen Scirocco, 1980-1984 Volkswagen Jetta, 1980-1983 Volkswagen Rabbit Convertible and Rabbit Pickup, 1982-1983 Volkswagen Quantum and more — see the Buyer's Guide tab for the full list.

  • Molded to fit: Pre-shaped to route into the bypass circuit and seal properly, built to OEM-quality specifications.
  • EPDM construction: EPDM tube with synthetic-fiber knit reinforcement and a heat-, ozone- and chemical-coolant-resistant EPDM cover.
  • Vacuum & degradation resistant: Specifically-engineered materials resist collapse under vacuum, and the hose is engineered to resist electrochemical degradation — the leading cause of hose failure.
  • Meets standards: SAE 20R4 class D2 and DIN 73411 class A (except for tolerances), rated -40°F to +257°F (-40°C to +125°C).

Gates recommends replacing hose clamps each time a new coolant hose is installed. Do not use for fuel or oil transfer applications.

Frequently Asked Questions

What does this hose do?

It carries engine coolant through the bypass circuit to help maintain proper flow and operating temperature. It's a molded EPDM hose pre-shaped for its application.

What is the hose made of?

An EPDM tube with synthetic-fiber knit reinforcement and a heat-, ozone- and chemical-coolant-resistant EPDM cover, meeting SAE 20R4 class D2 and DIN 73411 class A (except tolerances).

What temperature range is it rated for?

Gates rates this hose from -40°F to +257°F (-40°C to +125°C).

Should I replace the clamps too?

Yes. Gates recommends replacing the hose clamps each time a new coolant hose is installed for a secure, leak-free connection.

Can I use this hose for fuel or oil lines?

No. Gates cautions that this hose is for coolant applications only and should not be used for fuel or oil transfer.

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