🛠️ Don’t guess—know instantly with the BT-500, your engine’s best defense!
The BT-500 Head Gasket Combustion Leak Test Kit is a professional-grade, all-in-one diagnostic tool made in the USA. It delivers instant, reliable detection of combustion leaks through a simple fluid color change, backed by over 45 years of trusted manufacturing and a limited lifetime warranty. Compact and portable, this kit is essential for any serious vehicle manager or mechanic aiming to prevent costly engine damage.
| Brand | Block Tester |
| Power Source | Battery Powered |
| Style | Tragbar |
| Color | Black309 |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 10 x 3 x 5 inches |
| Measurement Type | Pounds |
| UPC | 851989000013 |
| Manufacturer | Block Tester |
| Model | BT-512 |
| Item Weight | 1 pounds |
| Product Dimensions | 10 x 3 x 5 inches |
| Country of Origin | USA |
| Item model number | BT-500 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | BT-500 |
E**N
Easy to use, decent price
I suspected that I had a head gasket leak on my 2004.5 LLY Duramax but I needed to be sure, so I bought this BT-500 Head Gasket Combustion Leak Test Kit. It was very easy to use; on a COLD engine, just put the tester on the overflow/coolant fill reservoir snuggly where the reservoir cap goes, add the testing fluid, start the engine and see what the results are. I saw the testing fluid soon start to bubble. Well, that meant that I had air coming in to my coolant, and since it was running, it had to be exhaust air. After running the engine to normal operating temperature, give the suction bulb some squeezes.The blue test fluid turned to a yellowish color, thus indicating that I have a blown head gasket, and/or a cracked head, and/or pulled block bolts or studs, and/or warped sealing surfaces. With any of these potential problems, I'm looking at thousands of dollars in parts and labor. A head gasket job alone is going to cost me $4,500 to $6,000. This tester helped me to easily narrow down what was going on with my engine, and was worth the price because of that.
J**E
DO NOT LET A DROP OF COOLANT GET IN THE TEST FLUID
USER ERROR FOR THE ONES SAYING IT DOESNT CHANGE COLORS. I was disappointed the first time I used it due to the fluid never changing colors. I tested my radiator first and just to test the fluid afterwards I tested against the exhaust and the fluid remained dark blue. I emailed the company about the issue and they notified me than if any coolant at all gets into the test fluid it will not work. I rinsed the test tube out with water, sucked radiator out even lower and then used some fresh test fluid, no blown gasket thankfully. After the final radiator test I sucked up exhaust fumes and it turned yellow immediately. The smallest amount of coolant will not let the test fluid change colors. Side note this is on a diesel truck and it does work for diesels.
G**K
Easy to use
Good for testing for a blown head gasket. Easy to use. Good for determining if you have a serious issue or not.
R**Y
Works
Fair
H**S
Yes
Work awesome
N**K
Worked well
Worked well but the tapered end is not small enough to fit down into the radiator but holding it down wasn’t a problem. But worked well when used on a newer vehicle with the radiator cap on the reservoir instead.
L**.
10/10
worked for my project
G**S
Great Product
Great product, works as advertised.
TrustPilot
3 周前
1 周前
