






🔥 Take control of your ride’s climate like a pro!
This cable-operated bypass heater valve fits 5/8" heater hoses (with adapters for 3/4"), allowing you to pull and open the valve to bypass the heater core. Designed for universal fit and durability, it enhances A/C performance by controlling coolant flow, ideal for LS engine swaps and restoring HVAC efficiency. Made in the USA with corrosion-resistant materials, it’s a reliable upgrade for any vehicle.
| ASIN | B00LEUVB30 |
| Best Sellers Rank | #889,958 in Automotive ( See Top 100 in Automotive ) #320 in Automotive Replacement Heater Control Valves |
| Brand | Old Air Products |
| Customer Reviews | 4.3 4.3 out of 5 stars (50) |
| Date First Available | June 30, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.5 pounds |
| Item model number | 25-1018 |
| Manufacturer | Old Air Products |
| Manufacturer Part Number | 25-1018 |
| Model | Heater Valve |
| Product Dimensions | 7 x 7 x 7 inches |
R**E
nice and toasty
Bought this for my Subaru swapped Vanagon. This valve does what it is supposed to do. Keeps the Subaru engine happy and keeps the heat out of the cabin when I don't want it.
J**O
Fits
My chevy luv heater control broke and would leak everywhere. There are no stock heater controls in any store. I saw someone talk about this control valve online and decided to give it a try. It works perfectly in my truck and the heater blows hot. I still need to find a way to adapt it into the truck since it obviously not made to mount under the hood. Overall great buy.
O**S
Works great
Working real good on my 1954 Chevy Rat Rod. Isolates heat from heater core as it should.
C**1
Best Coolant Valve So Far
Installed to a 1966 Ford F100 with a Classic Auto Air conditioning system to help regulate interior temperature. The best so far. It's hard to regulate temperature with coolant flow since engine speed is always changing.
R**H
Nice bypass valve.
Great product and much cheaper price than several other vendors. Works perfectly!
S**.
Great heat valve works great
Great heat valve works great
S**L
Cable doesn’t come with it
I bought this valve and the cable that was recommended by Amazon. There is no good way to bend a loop in the cable to connect it. I tried a search for a cable with a loop in the end, so far no luck. It would be a good valve if it came with a cable that fits.
B**.
Works great with oem climate control
I installed this in a Volvo 240. (Video on YouTube) The heater and components needed replacing. So this was the best “race car” option I could find for what was needed. It’s mechanical operation works great with the oem climate control lever. 4 stars as, Item is as it’s described, and works great so far. But Would buy again if I needed another one.
Trustpilot
1 day ago
1 week ago