We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.
⚙️ Seal the deal, stop the leak, and keep your drive sleek!
Blue Devil Transmission Sealer is a trusted, easy-to-use solution designed to stop leaks in all types of mechanical gearboxes—manual or automatic. With a proven formula favored by over a thousand users, it offers quick leak sealing without the need for expensive repairs, making it an essential maintenance product for any vehicle owner aiming to extend gearbox life and avoid downtime.
| ASIN | B0079JWMME |
| Best Sellers Rank | 262,880 in Automotive ( See Top 100 in Automotive ) 950 in Fillers, Adhesives & Sealants |
| Brand | BlueDevil Products |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,067) |
| Date First Available | 10 Oct. 2013 |
| Item Weight | 454 g |
| Item model number | 236 |
| Manufacturer | BLUE DEVIL |
| Manufacturer part number | 00236 |
| Product Dimensions | 18.42 x 6.99 x 6.99 cm; 453.59 g |
B**S
It worked but didn’t last
The sealer stop the leak for a short while but like it says on the bottle it cannot fix a Mechanical fault. It turned out the bolts on the gearbox had gone loose because the rubber gasket had shrunk with age. Had the gasket replace along with a new filter and all ok now. The jeep is 23 years old though.
H**Y
Leak gone!
my sons' car had a major gearbox leak..a few days after using this it seems to have stopped leaking completely.
D**E
Five Stars
All fine thanks
J**E
KEEP AWAY!!!
So I had a leak in my torque converter. I had been recommended this so I put half the bottle in my gearbox and little over a week later the gearbox failed resulting in me having to buy a refurbished box at £1000. Do not put any additives into your gearbox.
T**H
Made my leak much worse!
I had a slow leak on my Volvo V60 Automatic gearbox, about 1 litre every 4 or 5 weeks. I added Blue Devil and it made it much worse, effectively dumping all oil in a day or so. Beware! My car is currently in a Car Garage getting fixed...
A**R
Rubbish
Does not do as advertised. Do not buy
K**I
Great price delivery to the door
N**L
This product is amazing..... Thank you
B**.
My 2001 odyssey had a rack-and-pinion leak. A lot of fluid needed to be added about evey tank of gas. M y car is running well, and starts every time. . I bought the blue devel transmission sealer. The next time it needed fluid, I let it go down to about 1/2 of the reservoir.Put almost all of the blue devil in the jar. I didn't expect it to stop the leak. I drove it about 200 miles and noticed the steering returned to like new. Well, I thought it might have stopped the leak. I drove the car more until I had a chance to check the fluid level. The reservoir level was up to normal. The leak has stopped, and my steering is acting like it has a new rack. Blue devel stopped my steering leak. y l,eaks Up date 12/17 Monday I checked the p.s fl;uid jar and its still up to the top. Its not leaking fluid .
D**D
Transmission started leaking about 2 weeks ago. Wife called me and said there is oil on the garage floor after Ieft. Cleaned it up. The next morning there was oil on the floor again. After investigating I realized it was transmission fluid. Went to Amazon to see if there was anything available to stop the leak. There was several options, seemed like the Blue Devil had the best reviews so I ordered. Took a few days to get it. By the time I got it car was leaking a lot. My car holds 12 quarts of fluid so per recommendation I put 12 oz of Blue Devil in. I then topped of the transmission with 5 quarts of Transmission fluid. So in 2 weeks I had lost about 6 quarts of fluid, so quite the leak. Had my doubts but after driving several hundred miles it looks like the leak has completely stopped. Now if it holds up I will be amazed.
R**R
03 taurus transmission was leaking bad from torque converter seal put in 8 oz and leak stopped after 2-3 days of driving not sure how long it will last but very happy
Trustpilot
2 months ago
3 weeks ago