Gates 18777 premium molded heater hose for coolant with durable EPDM construction
Gates 18777 premium molded heater hose for coolant with durable EPDM construction

Gates 18777 Premium Molded Heater Hose – OEM-Style Coolant Solution

OverviewGates 18777 Premium Molded Heater Hose is engineered for today’s tighter engine compartments. Its small inner diameter...
Vendor: Gates
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Gates 18777 premium molded heater hose for coolant with durable EPDM construction

Gates 18777 Premium Molded Heater Hose – OEM-Style Coolant Solution

£27.14
Gates 18777 premium molded heater hose for coolant with durable EPDM construction

Gates 18777 Premium Molded Heater Hose – OEM-Style Coolant Solution

£27.14
Description
Description
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Overview

Gates 18777 Premium Molded Heater Hose is engineered for today’s tighter engine compartments. Its small inner diameter and factory-molded shape follow OEM-style routing, making it a practical choice for coolant, water, and air lines in compact engines. The hose also carries marine-application approval where the installation aligns with system requirements, offering flexibility for both land and marine environments.

In everyday use, this hose supports a clean, organized engine bay with smooth routing around nearby components. The combination of material choice and careful construction aims to maintain consistent flow and reliable performance across a broad range of operating conditions. While no replacement can guarantee specific outcomes, the design is intended to help maintain proper connections in demanding settings.

Compatibility and versatility

  • Small ID molded coolant hose designed to fit tight engine bays
  • Suitable for coolant, water and some air line routing
  • Marine applications approved when installation matches the system design

Materials and construction

  • EPDM tube with synthetic fiber knit reinforcement and EPDM cover
  • Factory-molded to OEM specifications for consistent fit
  • Engineered to resist electrochemical degradation, helping reduce typical hose-age risks

Standards and operating range

  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature range: -40°F to 275°F (-40°C to 135°C)

Real-world use scenarios illustrate how this hose can help with organized routing and reliable coolant flow in modern vehicles with limited space. It also serves as a versatile option for upgrading aging hoses or installing a compact, OEM-style replacement where space is at a premium. For marine installations, always confirm compatibility with your vessel’s cooling or water systems and follow OEM guidance.

Installation tips and care

  • Check routing, clamps, and engagement during installation
  • Inspect for wear or damage after service intervals and replace if needed
  • Avoid mixing with incompatible coolant types and follow vehicle manufacturer guidelines

FAQ

Q: What is Gates 18777 molded heater hose best used for?

A: Designed for coolant, water and air lines in compact engine bays; compatible with SAE 20R3 Type EC Class D-1/D-2.

Q: Is Gates 18777 suitable for marine installations?

A: Yes, marine applications are approved where installation aligns with the hose design and system specs.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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