---
product_id: 302297644
title: "Dorman 800-403 HVAC Heater Hose Connector for Select Models"
price: "€ 22.72"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/302297644-dorman-800-403-hvac-heater-hose-connector-for-select-models
store_origin: IT
region: Italy
---

# Dorman 800-403 HVAC Heater Hose Connector for Select Models

**Price:** € 22.72
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Dorman 800-403 HVAC Heater Hose Connector for Select Models
- **How much does it cost?** € 22.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/302297644-dorman-800-403-hvac-heater-hose-connector-for-select-models)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Dorman 800-403 HVAC Heater Hose Connector for Select Models

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 1 Count (Pack of 1) |
| Material | Metal Alloy |
| Brand | Dorman |
| Item dimensions L x W x H | 4.87 x 1.87 x 1.25 inches |
| Connector Type | Hose Connector |
| Thread Size | 0.375 inches |
| Exterior Finish | Ready To Paint If Needed |
| Thread Type | NPT |
| Item Weight | 0.01 Ounces |
| Number of Pieces | 1 |
| Global Trade Identification Number | 00019495026389 |
| Manufacturer | Dorman Products |
| UPC | 019495026389 |
| Part Number | 800-403 |
| Item Weight | 0.01 ounces |
| Product Dimensions | 4.87 x 1.87 x 1.25 inches |
| Item model number | 800-403 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Included Components | See Description |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Limited Lifetime Warranty |

## Product Details

- **Size:** 1 Count (Pack of 1)
- **Material:** Metal Alloy
- **Brand:** Dorman
- **Item dimensions L x W x H:** 4.87 x 1.87 x 1.25 inches
- **Connector Type:** Hose Connector
- **Thread Size:** 0.375 inches
- **Exterior Finish:** Ready To Paint If Needed
- **Thread Type:** NPT
- **Item Weight:** 0.01 Ounces
- **Number of Pieces:** 1

## Images

![Dorman 800-403 HVAC Heater Hose Connector for Select Models - Image 1](https://m.media-amazon.com/images/I/71zvMkHKITL.jpg)

## 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.

## 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

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**Shop now:** [https://www.desertcart.it/products/302297644-dorman-800-403-hvac-heater-hose-connector-for-select-models](https://www.desertcart.it/products/302297644-dorman-800-403-hvac-heater-hose-connector-for-select-models)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-30*