

🔧 Don’t guess—test fast and stay ahead of costly engine failures!
The BT-500 Combustion Leak Test Kit is a professional-grade, handheld diagnostic tool designed to quickly identify combustion leaks caused by blown head gaskets, cracked heads or blocks, and warped sealing surfaces. Featuring a unique fluid that changes color from blue to yellow upon detecting leaks, this all-inclusive kit requires no additional purchases and delivers reliable results in seconds. Trusted by thousands with a 4.5-star rating, it’s the go-to solution for automotive pros and savvy DIYers aiming to prevent expensive engine damage.
| ASIN | B06VVBSFTF |
| Best Sellers Rank | 16,268 in Automotive ( See Top 100 in Automotive ) 168 in Fuel Systems |
| Brand | Block Tester |
| Colour | Black |
| Country Of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 3,385 Reviews |
| Included Components | Block Tester BT-500 Combustion Leak Test Kit |
| Item Dimensions | 25.4 x 7.6 x 12.7 centimetres |
| Item Type Name | Block Tester BT-500 Combustion Leak Test Kit |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 25.4 x 7.6 x 12.7 centimetres |
| Item weight | 1 Pounds |
| Manufacturer | Block Tester |
| Measurement Type | Pounds |
| Model Number | BT-500 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Style | Handheld" or "Portable |
| Style Name | Handheld" or "Portable |
| UPC | 851989000013 |
A**R
Diagnosed Head Gasket Failure
Worked exactly as expected. well worth the money. Diagnosed head gasket failure. 100% would recommend over cheaper alternatives
R**S
Class product
Great product best brand on the market when it comes to testing head gaskets
J**N
Works for peace of mind
I had been told by a mechanic that my Rolls Royce needed head gaskets at a cost of between £6000-£8000. I bought this and tested myself and it has proven the mechanic wrong and given me peace of mind. Well worth buying and checking yourself before spending loads of money!
S**S
Does what it says
Does what it says... Liquid colour changes from blue to yellow if exhaust gases are detected in the coolant... Cant arque with thst
A**X
Solid test for head gasket leak
Very nice test, quick and easy to use, I confirmed a head gasket issue, the fluid went from blue to yellow. Highly recommend if you want to diagnose the head gasket issue. Quality product
A**E
Great product and easy to use.
Used it to test a few cars already. Easy to use and good value. Saves you a lot of money. This product is displayed in my videos on my Channel called AlexTheGrumpyOne. Feel free to find many products and reviews on there. Always happy to give a good honest review.
A**R
Head gasket tester
Worked well got instant results the liquid changed color
A**R
A true must have for any motor enthusiast
A real time garage essential
Trustpilot
4 days ago
1 month ago