Dorman 800-403 heater hose connector front view showing precise fit and leak prevention.
Dorman 800-403 close-up of material quality highlighting durable construction.
Dorman 800-403 pressure-tested assembly demonstrating reliable leak-free operation.
Dorman 800-403 fit check vehicle image guiding compatibility for replacement
Dorman 800-403 heater hose connector front view showing precise fit and leak prevention.
Dorman 800-403 close-up of material quality highlighting durable construction.
Dorman 800-403 pressure-tested assembly demonstrating reliable leak-free operation.
Dorman 800-403 fit check vehicle image guiding compatibility for replacement

Dorman 800-403 Heater Hose Connector – Reliable OEM Replacement

When a heater hose connector leaks or fails to seal, the space around the engine bay can...
Vendor: Dorman
Availability: In stock
£25.35
£25.35
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Subtotal: £25.35
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Dorman 800-403 heater hose connector front view showing precise fit and leak prevention.

Dorman 800-403 Heater Hose Connector – Reliable OEM Replacement

£25.35
Dorman 800-403 heater hose connector front view showing precise fit and leak prevention.
Dorman 800-403 close-up of material quality highlighting durable construction.
Dorman 800-403 pressure-tested assembly demonstrating reliable leak-free operation.
Dorman 800-403 fit check vehicle image guiding compatibility for replacement

Dorman 800-403 Heater Hose Connector – Reliable OEM Replacement

£25.35
Description
Description
x

When a heater hose connector leaks or fails to seal, the space around the engine bay can become messy and unreliable. The Dorman 800-403 heater hose connector is designed to restore a leak-free seal and help return the heater system to its expected performance, without guesswork on fit.

Quality replacement that mirrors original design

This connector is engineered to match the fit and function of the original equipment, making it a straightforward swap for many select models.

  • Quality replacement that mirrors the original fit and function
  • Durable construction with a precise seal to reduce leaks
  • A long-standing legacy: Dorman's 100+ years of automotive parts expertise
  • Rigorous pressure testing to validate performance under typical service conditions
  • Fit verification: use the garage tool and review the Confirmed Fit bar; hover over the blue i for notes

Durable construction for long-lasting performance

Made from quality materials, this connector is built for a tight seal and reliable operation in everyday driving scenarios.

Century of experience and trusted engineering

For more than a century, Dorman has provided high-quality automotive replacement parts, emphasizing compatibility and dependable fit in each product family.

Verify fit and install with confidence

Input your vehicle in the garage tool and check the Confirmed Fit bar at the top of the page. If there is an i in a blue circle, review fit notes to confirm compatibility with your model.

What to expect during installation

This is a direct replacement designed for a straightforward swap, with a seal and geometry intended to match the original component to support normal heater system operation.

Helpful reminders for buyers

  • Direct replacement for easy retrofits
  • Sealed design helps reduce coolant leaks

FAQ

Q: What models is the Dorman 800-403 heater hose connector compatible with?

A: It fits select models with compatible heater hose connections; use the garage tool to confirm fit for your vehicle.

Q: How can I verify fit before buying?

A: Enter your vehicle in the garage tool and check the Confirmed Fit bar; review notes if an i in blue circle appears.

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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