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Your cart is empty.Stant's Cooling System Tester tests up to 30 pound cooling systems and pressure caps part number 12270. It lets you test todays vehicles higher pressure cooling systems and caps. The genuine Stant repair parts let you repair your tester for years of productive use. The quality parts are made specifically for Stant tester and are available individually for your convenience.
GMSmith
August 29, 2025
My Stant cooling system pressure tester would not hold pressure. I took it apart and found the check valve not working. I purchased this in hopes of getting it working again. I had lent it to a friend and he had damaged it. The new check valve did the trick and it held pressure again to test cooling systems and radiator caps. Bottom line, it works great again, but I will not be lending tools out any more.
Customer
August 22, 2025
Great to have my tester back in operation….did the trick.
Robert Mitchell
June 24, 2025
Exact fit. Worked just like original
Larry
June 11, 2025
GREAT PRODUCT, GREAT SELLER
Mongrell
April 7, 2025
nice to find repair parts for test equipment.
R. Levine
March 19, 2025
found these pieces on Amazon, I have a 30+ year old Stant cooling system pressure tester that wouldn't build pressure anymore. this and a few other parts from Amazon and I now have a tester updated to fit the newer high pressure cooling systems for less than half the cost of a new one and took a total of 10 minutes to repair, most excellent
mark j. lemker
December 11, 2024
Genuine part works as it should
luckyleo66
November 26, 2024
Used to rebuild a older pressure tester I have had for years.Tester back to life now.
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