The 6 Best Heater core Coolant Hoses (2023 reviews)

We are personally inclined towards gates heater hose, it is not so pricy, but it overachieves its purpose and outstanding in important aspects. Gates coolant outlets provide an improved and cost-effective answer to common design, manufacturing and material issues found in other aftermarket options. It is manufactured with heavy-gauge steel tubing, tough welds and oe exact hose material for high resistance to failure from corrosion, rust and vibration. It is manufactured to fit specific applications and are similar to oem specifications to include specific essential integrated oe components such as hose branches, quick-connectors, sensors, restrictors, etc.

The original heater hose has a plastic adapter that is permanently attached to the hose, which then goes to the plastic inlet on the firewall. These parts create excessive vibrations and imbalance when they are failing, stressing the fan pulley bracket. It measures about 1/2” inside diameter.

Why We Like This:

Spray with silicone lube to make assembly easy
Great fit perfect match, no more leaks and great value
Good brand reputation

Best Runner up: Dorman Heater Hose

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The dorman heater hose should be able to handle its purpose and duties with ease. Dorman gives repair professionals and vehicle owners greater freedom to fix cars and trucks. If you have a tahoe 4x4, this is the correct heater hose that comes out from the water pump, and then has the fitting to go to the overflow bottle and the heater on the firewall. It has a 6.0L engine in it. This is the outlet heater hose for trucks with an auxiliary heater. It comes with necessary clamps for easy installation.

It is made of high quality materials. It is exact fit and with upgraded metal connect instead of factory plastic.

Why We Like This:

Nice replacement over factory plastic joints
Will work in applications without aux heat with a minor, no-cost modification
High quality hose assembly for oem replacement

Best For marine And industrial use: HPS Heater core Coolant Hose

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For a low asking price, hps heater core coolant hose has managed to overwhelm their customers by packing as many features as they could. HPS performance silicone is designed and engineerd to meet high performance requirements specified in various industry standards, therefore make it great for marine and industrial use, custom turbo or radiator cooling system. It is made of premium industrial grade high temp reinforced silicone. It provides excellent resistance for high temperature applications.

The Heavy wall design gives it the ability to handle extreme pressure. It is compatible with water and anti-freeze such as coolant.

Why We Like This:

High burst strength and excellent heat resistance
Ultra flexible & excellent tensile strength
Good brand reputation

Best With LT water pump Outlet Hose sizes: Ict Billet Heater core Coolant Hose

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Next on the list, we've got yet another hose that manages to win our hearts. It's the ict billet heater core coolant hose and it's widely considered as hose that has the most suitable features. It is great for doing ls/lt swaps when retaining the heater core.

Why We Like This:

Bend is molded into the hose
Good brand reputation

Best durability: Gates Heater core Coolant Hose

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The gates heater core coolant hose is the best reliable hose on the market today. Gates coolant outlets provide an improved and cost-effective answer to common design, manufacturing and material issues found in other aftermarket options. It is manufactured to fit specific applications and are similar to oem specifications to include specific essential integrated oe components such as hose branches, quick-connectors, sensors, restrictors, etc. These oe quality parts ensure an exact fit and easy installation while effectively restoring the cooling system to proper operation and performance.

It is constructed with premium alloy materials and a 100 percent functional test of seals and bearings along with a 100 percent leakage test for both the casting and assembled water pump. These parts create excessive vibrations and imbalance when they are failing, stressing the fan pulley bracket. The hose is very flexible.

Why We Like This:

Good resistance to high temperatures for extended periods of time, which prolongs service life
Meets sae 20r3 standard wall class d-2 requirements
Convenient 6-ft. lengths in self-service, reusable, recyclable package that can be displayed on pegboard
Oil based coolant additives and high cooling system pressures

Best value For money: Dorman Heater core Coolant Hose

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The dorman heater core coolant hose's material feels more premium than its price would suggest. The little pop-clips dorman leaves on for installation are a very nice touch, but you better have a pair of needle-nose vice-grips handy for this job. The new Aluminum design that dorman uses will outlast the OEM parts and is a great solution to a flawed design.

The new hoses come with retaining clips on the new clamps so you literally just pop them on and then release the retaining clip. The self lock ring in one of the hoses doesnt feel to snap hard enough, but it wprks. It comes with necessary clamps for easy installation. The hose ends are the same size that the plastic end locks in place and seals correctly after pushed over tubing with adequate pressure. This is a great option for replacing hoses.

Why We Like This: