Product Summary

19" Hose Length, Black

  • Highly recommend for upper, lower, by-pass, heater and other coolant hose applications
  • It is engineered to resist electrochemical degradation
  • Hose is re-engineered with materials that resist vacuum collapse
  • Manufactured to meet SAE 20R4 and 20R3 Type EC Class D-1 and D-2 specifications
  • Has a temperature rating of -40 F to 275 F (-40 C to 135 C) in coolant hose applications
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Key Specs

MFG. Part #21581
BrandGates
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Gates 21581 Details

Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

  • Recommend for upper, lower, by-pass, heater and other coolant hose applications
  • Heat and ozone resistant cover.
  • Engineered to resist electrochemical degradation - the leading cause of hose failure.
  • Re-engineered materials resist vacuum collapse. This reduces the need for internal springs in many applications.
  • Meets SAE 20R4 and 20R3 Type EC Class D-1 and D-2 specifications.
  • Temperature Rating: -40 F to 275 F (-40 C to 135 C) in coolant hose applications.
  • Inside diameter 1-1.50"
  • Inside diameter 2-1.75"
  • For 305 sprint cars.
  • 1987-1993 Chevy S series Pickup 4-Cyl 2.5L Lower hose. 

Gates 21581 Specifications

KEY SPECS
MFG. Part #21581
BrandGates
GENERAL
Hose Length19"
ColorBlack
Sold in QuantityEach

Ratings & Reviews

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Worked good

5.0

6 years ago

Therocket50

IL

Verified

Fit as expected.

Would Recommend

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Questions & Answers

2 Questions • 2 Answers

My water pump is 1 3/4 and my radiator is a 1 1/2 will this fit?

by MrC

• 3 months ago

1 answer

Does this lower radiator hose have 1.5" on one end and 1.75" on the other end?

by TS

• 3 months ago

1 answer

2 of 2 questions shown

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