What is the id of the connector / od of the pipe it fits?

This is for use with 5/8" on both the ID and OD

I wan to replace my heater hose too. What size heater hose do I use with this? Is it 3/4"?

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.

Do you need 2 of these?

It would depend on the size of the lines you are working on and also if you need to replace them all.

Got a 98 Expedition 5.4l. Couldn't get them off, now I can't get them back on.. any help out there appreciated..

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.

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Dorman 800-403 Heater Hose Connector

Product ID: 11885772

Details

Brand
Dorman
Connector Type
Hose Connector
Exterior Finish
Ready To Paint
Item Weight
0.01 Ounces
Item dimensions L x W x H
4.87 x 1.87 x
Material
Metal Alloy

🔩Precision metal alloy build

🧪Pressure-tested reliability

🛠️Exact OE fit & function

€ 25.90

Duties & taxes included

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Upgrade your ride with leak-free confidence!

BUILT TO LAST - Durable metal alloy ensures leak-free, long-term performance
TRUSTED LEGACY - Backed by over 100 years of Dorman’s automotive expertise
TESTED UNDER PRESSURE - Rigorously pressure-tested to guarantee dependable operation
FIT VERIFIED CONFIDENCE - Use the garage tool to confirm perfect fit for your vehicle
ENGINEERED FOR PERFECTION - Seamlessly matches original equipment for flawless integration

The Dorman 800-403 Heater Hose Connector is a precision-engineered, metal alloy replacement part designed to match the fit and function of original equipment. Pressure-tested for durability and backed by over a century of Dorman’s automotive expertise, it ensures leak-free performance and reliable operation. Perfectly fit-verified for select vehicle models, this connector offers a hassle-free upgrade with a limited lifetime warranty.

Specifications

ASIN	B000CIR1QQ
Best Sellers Rank	#58,884 in Automotive ( See Top 100 in Automotive ) #20 in Automotive Replacement Heater Hose Connectors
Brand	Dorman
Brand Name	Dorman
Connector Type	Hose Connector
Customer Reviews	4.6 out of 5 stars 839 Reviews
Exterior Finish	Per Item Description
Global Trade Identification Number	00019495026389
Included Components	Per Item Description
Item Dimensions	4.87 x 1.87 x 1.25 inches
Item Highlight	Fits Select Models
Item Weight	0.27 g
Item dimensions L x W x H	4.87 x 1.87 x 1.25 inches
Manufacturer	Dorman Products
Manufacturer Part Number	800-403
Manufacturer Warranty Description	Limited Lifetime Warranty
Material	Metal Alloy
Material Type	Metal Alloy
Model Number	800-403
Number of Pieces	1
Part Interchange Info	E69Z 18D435-A, 15119175, 15139564
Size	1 Count (Pack of 1)
Thread Size	0.375 inches
Thread Type	NPT
UPC	019495026389
Unit Count	1 Count

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€ 25.90

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Finland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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