Top 9 Heater Core Hose Kit – Automotive Replacement Heater Hoses

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1. Muzzys


Muzzys HEATER CORE BYPASS KIT, Fits MOST Vehicles and ALL 5/8" and 3/4" ID Heater Hoses. Easily Stop Flow to Your Heater Core With This Premium Hi Temp Hi Pressure By-Pass Kit. Made In USA!, Universal

Muzzys #ad - If this is your case you can also install the bypass kit on the fitting at the firewall where the inlet hose attaches. This kit must be installed on the "IN" hose. There will be two hoses coming from the firewall. Install the supplied valve at the END of your OEM hose and then attach the valve and supplied 4" hose to your engine outlet.

This kit is comprised of PREMIUM components that WILL NOT fail. This premium kit is made in the usa and includes: one hi-temp/hi-pressure shut off valve, one 4" hi-temp/Hi Pressure Heater Hose, THREE Stainless Steel Smooth Edge Band Clamps that WILL NOT cut into your hoses. See photos to the left. This kit is 100% safe for your vehicle and won't cause any damage or Check Engine Lights. This kit includes a 4" section of high quality heater hose so you do not need to cut or modify your oem heater hose to install this valve.

Remove the vehicle heater hose from the port on the engine and install the supplied hose, valve, and clamps. No hose cutting required! with this kit you can control flow to your heater core with a turn of the handle! Easy 5 minute install. On some vehicles it will not be easily accessible to install this kit on the engine side of the heater inlet hose. This kit can be installed on either end of the heater IN hose. Follow the hoses from the firewall and install this kit on the other end.
BrandMuzzys #ad
ManufacturerMuzzys #ad

2. Dorman


Dorman 47238 Chrysler Heater Hose Repair Kit Compatible with Select Models

Dorman #ad - Quality replacement - this heater hose connector matches the fit and function of the original equipment connector. Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool. Performance tested - this connector has been rigorously pressure tested to ensure reliable performance. Durable construction - this heater hose connector is made of quality materials for a precise fit and leak-free durability. Cost-effective solution - offers original equipment quality at competitive price.
BrandDorman #ad
ManufacturerDorman Products #ad
Height11.3 Inches
Length1.26 Inches
Weight0.1 Pounds
Width3.6 Inches
Part Number47238
WarrantyLimited Lifetime Warranty

3. ICT Billet


ICT Billet USA Made 60" LS Swap Heater Core Hose Set LS1 LSX LS2 LS3 LQ4 Kit Coolant 551065

ICT Billet #ad - Great for doing LS/LT swaps when retaining the heater core. Compatible with all OEM LS and LT water pump outlet hose sizes. Package includes: 1pc 5/8 i. D. 60 inch hoses. Hose and 1pc 3/4 I. D. Hose. Usa made, high quality hoses.
BrandICT Billet #ad
ManufacturerICT Billet #ad
Height5.7 Inches
Length10.4 Inches
Width10.5 Inches
Part Number551065

4. Dorman


Dorman 626-001 Engine Heater Core Bypass Kit

Dorman #ad - Complete solution - contains components and hardware required to bypass a leaking or failed heater core, including interchangeable 5/8" and 3/4" hose fittings to adapt to most common heater hoses.

Support available - every dorman part is backed by Dorman's ASE Blue Seal Certified technical support team. Durable materials - the components in this kit are manufactured from quality materials for reliable service. Trustworthy quality - vehicle try-on tested, and backed by a team of product experts in the United States and more than a century of automotive experience. Cost-effective fix - this heater core bypass kit offers an affordable alternative to replacing an entire failed heater core.
BrandDorman #ad
ManufacturerDorman Products #ad
Height2.24 Inches
Length4.92 Inches
Width5.31 Inches
Part Number626-001
WarrantyLimited Lifetime

5. Dorman


Dorman 626-111 HVAC Heater Hose Assembly Compatible with Select Cadillac / Chevrolet / GMC Models

Dorman #ad - Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool. Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking.

Industry-leading design - professionally engineered by the aftermarket leader in heater hose assemblies. Ideal replacement - this hvaC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models. Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer.
BrandDorman #ad
ManufacturerDorman Products #ad
Height1 Inches
Length39.37 Inches
Weight1.32 Pounds
Width10 Inches
Part Number626-111
WarrantyLimited Lifetime

6. Motorcraft


Motorcraft KH735 Hose

Motorcraft #ad - The package height of the Product is 3. 0 inches. The package width of the Product is 15. 1 inches. The package length of the Product is 15. 6 inches. Country of Origin : China.
BrandMotorcraft #ad
ManufacturerMotorcraft #ad
Height1.26 Inches
Length13.93 Inches
Width6.87 Inches
Part NumberKH735

7. Dorman


Dorman 626-538 Engine Heater Hose Assembly Compatible with Select Cadillac / Chevrolet / GMC Models OE FIX

Dorman #ad - Upgraded material - this replacement engine heater hose assembly features aluminum Y-connectors for added durability. Quality engineering - designed in the United States and backed by decades of automotive aftermarket experience. Application specific - designed to match the original fit and function of heater hoses on certain vehicle years, makes and models. Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool. Complete replacement - hoses come with necessary clamps for easy installation.
BrandDorman #ad
ManufacturerDorman Products #ad
Height6.69 Inches
Length38.97 Inches
Weight1.72 Pounds
Width13.77 Inches
Part Number626-538
WarrantyLimited Liftetime



Performance LS LT Heater Core Bypass Delete Hose Coolant Crossover Compatible with Chevrolet GM Pontiac LS LSX LS1 LS2 LS3 LS6 LS7 LQ4 LQ9 LT1 LT4

BLACKHORSE-RACING #ad - Easy to clean — oil, Coolant and Fuel-Resistant Finish. Design — our custom molded hose goes on your LS water pump and loops the heater hose lines. Hose ends — 5/8" and 3/4" used to loop the heater hose outlets of your LS/LT engine water pump. Heater core — delete Water Pump Bypass Hose. Application — for ls lsx ls1 ls2 ls3 ls6 ls7 lq4 LQ9 LT1 LT4.
Manufacturerblackhorseracing #ad
Height1.57 Inches
Length3.94 Inches
Weight0.13 Pounds
Width3.54 Inches
Part NumberHM1529

9. ICT Billet


ICT Billet 5/8" to 5/8" Inch Hose Barb Splice Coupler Repair Fitting Adapter Connector Radiator Coolant Intercooler Heat Exchanger Fluid Designed & Manufactured in USA Bare Aluminum AN627-10A

ICT Billet #ad - Package includes 1 coupler. Machined aluminum finish. Made in wichita, Kansas from aerospace grade, usa produced, billet aluminum. This fitting has a 5/8" barb on both sides of the fitting with a hose stop flange to keep the coupler centered in the splice connection. Commonly used to couple or repair your radiator hose, vacuum line, brake booster hose, or any other hoses together.
BrandICT Billet #ad
ManufacturerICT Billet #ad
Weight0.02 Pounds
Part NumberAN627-10A