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Gates 18020 Premium Molded Heater Hose

Free shipping on orders over $29.99

$13.65

$ 6 .99 $6.99

In Stock

About this item

  • Has all the quality features of Gates molded coolant hose and similar to OEM specifications
  • Engineered to resist electrochemical degradation – the leading cause of hose failure
  • EPDM tube, synthetic fiber knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 Deg. C)


Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. It can be used for coolant, water and air applications, also approved for marine applications.


Tommy D
2025-08-19 16:48:03
Perfect length for my garage heater. High quality hose. Would have been nice if one end was male and the other end was female. I had to purchase a gender changer at my local hardware store.
Anonymous User
2025-08-10 14:23:33
One thick boy!
Aimee and John
2025-07-12 19:05:13
Used this hose as replacement PCV valve hose for a Toyota 3.0 (1MZ-FE). It's a braided hose 5/16 with a 90° bend (cut to fit). Worked out great for my application.
Verified Purchase
2025-06-21 13:06:40
As with most Gates hoses and parts, this item is every bit as good as the stock unit it replaced.
Ivan J.
2025-03-18 11:11:29
Gates makes great quality hoses. My only gripe with this hose was that the first one I received had a defect and was molded incorrectly, but Amazon was great and over-nighted me another one at no extra charge for my troubles!
Laci H.
2025-01-19 18:24:39
not sure why this is listed as a heater hose. Way too small both in diameter and length
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