Muzzys HEATER CORE BYPASS KIT, 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

★★★★★ 4.8 106 reviews

US$6.78
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US$6.78
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Free shipping Free 30-day returns

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Management number 231224126 Release Date 2026/06/18 List Price US$6.78 Model Number 231224126
Category

This PREMIUM kit 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 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. Install the supplied valve at the END of your OEM hose and then attach the valve and supplied 4" hose to your engine outlet. On some vehicles it will not be easily accessible to install this kit on the engine side of the heater inlet hose. 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 installs in minutes without making any permanent mods to your vehicle. 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. Locate your heater core inlet hose. There will be two hoses coming from the firewall. One is the heater core "in" and the other is the "out". This kit MUST be installed on the "IN" hose. Follow the hoses from the firewall and install this kit on the other end. Remove the vehicle heater hose from the port on the engine and install the supplied hose, valve, and clamps. This kit can be installed on either end of the heater IN hose. 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 is comprised of PREMIUM components that WILL NOT fail.
  • This PREMIUM kit 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 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. Install the supplied valve at the END of your OEM hose and then attach the valve and supplied 4" hose to your engine outlet. On some vehicles it will not be easily accessible to install this kit on the engine side of the heater inlet hose. 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 fits all 5/8" and 3/4" heater hose systems which is just about 99% of all vehicles out there.
  • This kit DOES fit 5/8" hoses contrary to several reviewers. It does take a little M. A. N. to get a 5/8" hose on the nipple but it can be done. If needed you can use a little soapy water to get the hose to slide over the barbs on the valve.
UPC 600599657700
ASIN B0932BRSBQ
Size 5/8 inch, 3/4 inch
Color Black, Blue, Gold
Brand Name Muzzys
Unit Count 1.0 Count
Item Weight 0.23 Kilograms
Thread Type NPT
Manufacturer Muzzys
Model Number 10378
Material Type Stainless Steel
Connector Type Nipple
Exterior Finish Stainless Steel
Number of Pieces 4

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