Top 8 Bypass Heater Valve – Automotive Replacement Heater Control Valves

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1. Joywayus


Joywayus All Metal Body Automobile Integrated 4-Way Heating Water Manual Control Valve 3/4” 19mm OD Barb

Joywayus #ad - Integratedno screw fixation, integrated structure, after a long time, no water channeling, good sealing. So high temperature resistance and no rust, suitable for high temperature coolant environment. After installing the warm water valve, some warm air will go to the cold air, and the temperature of the warm water tank in the cab will naturally drop.

In case the heater water tank is broken or aged, cause more damage. But when the weather is hot, the warm water inside and outside will not circulate, and the fuel consumption will increase obviously. With this warm water valve, the water from outside will rarely enters, the leakage will not cause the engine to pull, and there is no need to worry about the dry phenomenon of the warm water tank. In some models, the pipes are aging and the elasticity becomes poor.

The electroplated handle is strong and durable. Work temperature: - 20-150℃. Sizebarb size: 3/4” 19mm. Functioncold and warm air conditioning air is controlled by the duct control motor, which will affect the cooling effect, because his warm air is not closed tightly, is not felt when in cold weather. Work pressure: 1. 6mpa. Applicationone of the biggest uses of installing this valve is that the warm water from the control valve is sent to the warm water tank in the cab.
BrandJoywayus #ad
ManufacturerJoywayus #ad
Part Number6ZM-FER-70235

2. Muzzys


Universal, 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!, Muzzys HEATER CORE BYPASS KIT

Muzzys #ad - On some vehicles it will not be easily accessible to install this kit on the engine side of the heater inlet hose. This kit fits all 5/8" and 3/4" heater hose systems which is just about 99% of all vehicles out there. This kit is 100% safe for your vehicle and won't cause any damage or Check Engine Lights.

Follow the hoses from the firewall and install this kit on the other end. This kit is comprised of PREMIUM components that WILL NOT fail. One is the heater core "in" and the other is the "out". To get a 5/8" hose on the nipple, if you can't get it on you probabaly shouldn't be working on vehicles or perhaps you should get your wife to help you. This kit must be installed on the "IN" hose. 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 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. This kit does fit 5/8" hoses contrary to several reviewers. 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. N. A.
BrandMuzzys #ad
ManufacturerMuzzys #ad

3. RecPro


RecPro RV Water Heater Bypass Kit | Pressurized Hose and Fittings | Winterizing Made Easy

RecPro #ad - Install the blue end cold to the w/h cold inlet, and the red end hot to the W/H hot outlet. Made in the usa, this rv hot water bypass system is NSF-61-9 Certified as well as UPC/NSF Component Certified. This unit is to be hand tightened plus ¼ turn. Comprised of a length of pex tubing and crimp rings as well as a fitting for either side, aggressive water, the hot water bypass system is easy to use and install. The ppsu valves are more resistant to heat, and chemicals than normal valves are, extending the life of the system and further reducing stress.
BrandRecPro #ad
ManufacturerRecPro #ad
Part NumberRP-1239

4. Ford


Genuine Ford F87Z-18495-AA Heater Control Valve Assembly

Ford #ad - Country of Origin: China. Package Quantity: 1. Product type: Auto Part. Package dimensions: 8. 128 cms l x 10414 cms w x 8. 128 cms H.
BrandFord #ad
ManufacturerFord #ad
Height6 Inches
Length6 Inches
Width6 Inches
Part NumberF87Z-18495-AA
WarrantyFord Limited Warranty

5. RecPro


RecPro RV 1/2" Three Way by-Pass Valve | Shut Off Valve for Water Heater

RecPro #ad - Barbed connections. Keeps antifreeze out of your water heater tank and in your RVs water lines. Used when winterizing RVs with 2-valve systems. Redirects the flow of water away from your water heater. Three-way valve for your RV water heater.
BrandRecPro #ad
ManufacturerRecPro #ad
Height1.5 Inches
Length1.5 Inches
Width0.15 Inches
Part NumberRP-1636

6. Camco


Camco 35953 8" Supreme Permanent By-Pass Kit for 6 Gallon Tank -

Camco #ad - Kit includes: 1 8-inch crimp-resilient by-pass hose, 2 3-way brass valves with shutoff for non-restrictive flow, and 1 roll of Teflon tape.

Compatibility: for 6-gallon rv water heater tanks; Fitting Thread Size: 1/2-inch -14 NPT tapered threads. Unique valve handles: valve handles have flow indication, offering a visual indication of the valve’s operation. Permanent installation: Allows you to by-pass you water heater without additional disconnections. Saves money on antifreeze: kit allows you to by-pass your water heater in your RV, motor home, or travel trailer each time you winterize; Saves between 6-10 gallons of antifreeze.
BrandCamco #ad
ManufacturerCamco #ad
Height17.19 Inches
Length1.84 Inches
Weight0 Pounds
Width7.63 Inches
Part Number35953
WarrantyLimited 1 Year

7. Universal Air Conditioner


Universal Air Conditioner HV 1022C HVAC Heater Control Valve

Universal Air Conditioner #ad - Premium iso/ts 16949 quality; tested to meet or exceed OEM specifications. Item package weight: 0113 kilograms. Maximum cooling efficiency. Package dimension : 4. 8 centimeters L x 6. 6 centimeters W x 9. 1 centimeters H.
BrandUniversal Air Conditioner #ad
ManufacturerUniversal Air Conditioner #ad
Height5 Inches
Length5 Inches
Weight0.25 Pounds
Width5 Inches
Part NumberHV 1022C
ModelHV 1022C
Warranty1 year manufacturer

8. ACDelco


GM Genuine Parts 15-5551 Heater Bypass Valve

ACDelco #ad - Offering the quality, reliability, and durability of GM OE. Restore cooling system function and performance. Gm-recommended replacement part for your GM vehicle’s original factory component. Manufactured to gM OE specification for fit, form, and function.
BrandACDelco #ad
ManufacturerACDelco #ad
Height4.1 Inches
Length6.2 Inches
Weight0.2 Pounds
Width4.1 Inches
Part Number15-5551
Warranty24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see for more details.