--- product_id: 11885772 title: "Dorman 800-403 Heater Hose Connector Compatible with Select Models" brand: "dorman" price: "£13.71" currency: GBP in_stock: true reviews_count: 11 category: "Dorman" url: https://www.desertcart.co.uk/products/11885772-dorman-800-403-heater-hose-connector-compatible-with-select-models store_origin: GB region: United Kingdom --- # Precision fit for OEM match Pressure-tested reliability Durable metal alloy build Dorman 800-403 Heater Hose Connector Compatible with Select Models **Brand:** dorman **Price:** £13.71 **Availability:** ✅ In Stock ## Summary > 🔥 Upgrade your ride’s warmth with leak-proof precision! 🔧 ## Quick Answers - **What is this?** Dorman 800-403 Heater Hose Connector Compatible with Select Models by dorman - **How much does it cost?** £13.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/11885772-dorman-800-403-heater-hose-connector-compatible-with-select-models) ## Best For - dorman enthusiasts ## Why This Product - Trusted dorman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fit Verified:** Use the garage tool to confirm exact vehicle compatibility and avoid installation guesswork. - • **Built to Last:** Crafted from premium metal alloy ensuring leak-free, long-term durability. - • **OEM-Perfect Fit:** Seamlessly replaces original heater hose connectors for flawless compatibility. - • **Tested for Trust:** Rigorously pressure-tested to guarantee dependable performance under all conditions. - • **Century-Strong Legacy:** Backed by over 100 years of Dorman’s automotive expertise and quality assurance. ## Overview The Dorman 800-403 Heater Hose Connector is a high-quality, metal alloy replacement part designed to match original equipment specifications. Pressure-tested for reliability and backed by over a century of Dorman’s automotive expertise, it ensures a precise, leak-free fit for select vehicle models. Easy to verify fitment with the garage tool, this connector offers professional-grade durability and performance for your HVAC system. ## Description Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance. Review: Great part - This part came packaged well and fit perfectly for the job I needed it to do. It was simple to install as well. Review: Heater Hose connecter - Changed out the heater core on my 2001 Ford F-350. I got two of them to replace the old ones due to they had not been off for 22 Years. They worked good. Cut the old ones off and put the new ones on. Depending on How much money you would like to spend and if I had to do it over, I would buy new hose to put Them on. Only problem I had with them or the old ones I ended up buying more than one tool to get the ends unplugged from the heater core. Ended up I built my own tool to do it with. Wasted money on buying what I thought was suppose to work. ## Features - Quality replacement - this heater hose connector matches the fit and function of the original equipment connector - Durable construction - this heater hose connector is made of quality materials for a precise fit and leak-free durability - Century of experience - for over 100 years, Dorman Products has provided quality automotive replacement parts to its customers - Performance tested - this connector has been rigorously pressure tested to ensure reliable performance - Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000CIR1QQ | | Best Sellers Rank | #97,385 in Automotive ( See Top 100 in Automotive ) #32 in Automotive Replacement Heater Hose Connectors | | Brand Name | Dorman | | Connector Type | Hose Connector | | Customer Reviews | 4.6 4.6 out of 5 stars (833) | | Exterior Finish | Ready To Paint If Needed | | Global Trade Identification Number | 00019495026389 | | Included Components | See Description | | Item Dimensions | 4.87 x 1.87 x 1.25 inches | | Item Weight | 0.01 Ounces | | Manufacturer | Dorman Products | | Manufacturer Warranty Description | Limited Lifetime Warranty | | Material Type | Metal Alloy | | Model Number | 800-403 | | Number of Pieces | 1 | | Size | 1 Count (Pack of 1) | | Thread Size | 0.375 inches | | Thread Type | NPT | | UPC | 019495026389 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Dorman - **Connector Type:** Hose Connector - **Exterior Finish:** Ready To Paint If Needed - **Item Weight:** 0.01 Ounces - **Item dimensions L x W x H:** 4.87 x 1.87 x 1.25 inches - **Material:** Metal Alloy - **Number of Pieces:** 1 - **Size:** 1 Count (Pack of 1) - **Thread Size:** 0.375 inches - **Thread Type:** NPT ## Images ![Dorman 800-403 Heater Hose Connector Compatible with Select Models - Image 1](https://m.media-amazon.com/images/I/71Ih3h7872L.jpg) ![Dorman 800-403 Heater Hose Connector Compatible with Select Models - Image 2](https://m.media-amazon.com/images/I/61Zfh6JnaKL.jpg) ![Dorman 800-403 Heater Hose Connector Compatible with Select Models - Image 3](https://m.media-amazon.com/images/I/618u7n8ijKL.jpg) ![Dorman 800-403 Heater Hose Connector Compatible with Select Models - Image 4](https://m.media-amazon.com/images/I/71g10mdfv0L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the id of the connector / od of the pipe it fits?** A: This is for use with 5/8" on both the ID and OD **Q: I wan to replace my heater hose too. What size heater hose do I use with this? Is it 3/4"?** A: In my experience the size has to do with the size of the pipe coming out of the heater. So the size used depends on the heater core used. In my case is was 3/4 for the heater core but 5/8 for the heater interconnecting pipe. Or in short you won't know still you take it off. But if it is the original heater core you could try and see what Amazon tells you. Amazon was correct on mine. Buy two Quick Connects and replace both. If one broke the other is not far behind. **Q: Do you need 2 of these?** A: It would depend on the size of the lines you are working on and also if you need to replace them all. **Q: Got a 98 Expedition 5.4l. Couldn't get them off, now I can't get them back on.. any help out there appreciated..** A: I broke the original connectors removing the hoses from the metal tubes that protrude from firewall. I cut off the old connectors and replaced them with the dorman 800-403 connector with a clamp. At first the new connectors would not push onto the metal tubes, so I smeared a dab of tune up grease on the metal tubes and the connectors pushed right on and clicked. no leaks - worked great. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great part *by D***A on February 24, 2026* This part came packaged well and fit perfectly for the job I needed it to do. It was simple to install as well. ### ⭐⭐⭐⭐⭐ Heater Hose connecter *by V***N on February 23, 2024* Changed out the heater core on my 2001 Ford F-350. I got two of them to replace the old ones due to they had not been off for 22 Years. They worked good. Cut the old ones off and put the new ones on. Depending on How much money you would like to spend and if I had to do it over, I would buy new hose to put Them on. Only problem I had with them or the old ones I ended up buying more than one tool to get the ends unplugged from the heater core. Ended up I built my own tool to do it with. Wasted money on buying what I thought was suppose to work. ### ⭐⭐⭐⭐⭐ na *by R***Y on January 10, 2026* Good product!! Great bye!! ## Frequently Bought Together - Dorman 800-403 Heater Hose Connector Compatible with Select Models - Dorman 800-414CD Heater Hose Connector Compatible with Select Cadillac / Chevrolet / GMC Models - Dorman 800-413CD Heater Hose Connector Compatible with Select Cadillac / Chevrolet / GMC Models --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/11885772-dorman-800-403-heater-hose-connector-compatible-with-select-models](https://www.desertcart.co.uk/products/11885772-dorman-800-403-heater-hose-connector-compatible-with-select-models) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-14*