❄️ Keep your transmission cool, your ride smooth, and your edge sharp.
The Lucky Seven 40k Transmission Oil Cooler LPD47391 is a heavy-duty cooling solution designed for vehicles up to 40,000 lbs GVW. Featuring advanced low-pressure drop technology, it maximizes transmission efficiency while minimizing heat stress. The kit includes all necessary mounting hardware for easy installation and is backed by a lifetime warranty, making it the ultimate upgrade for professional-grade vehicle performance and reliability.
| Manufacturer | 40k Transmission Oil Cooler |
| Brand | Lucky Seven |
| Model | 40k Transmission Oil Cooler |
| Item Weight | 4 ounces |
| Product Dimensions | 4 x 3 x 3 inches |
| Item model number | LPD47391 40k |
| Exterior | Brushed |
| Manufacturer Part Number | LPD47391 40k |
D**M
Great size
Great size, easy to install, keeps transmission cool.
C**G
It cools great
Well packaged.Installed into diesel with allison 1000,It dropped transmission temperature 20° - 25°.Update: replacement ordered, weld broke and failed.2nd replacement failed. Will not order again.
C**.
Works
Works great and cools my 4l60e just fine.
E**S
Do not use hose provided with kit
Hoses provided with kit does not withstand fluid pressure, Both Ruptured within 2 hrs of operation. Cooler works good.
A**R
Do not use the line provided!
Do not use the line provided, Line has split twice and has caused transmission fluid to pour out and go everywhere! Thankfully it was caught before our upcoming trip, would hate to have been stranded- the cooler itself is great and kept our temp low!
A**R
GREAT COOLER
GREAT HEAVY DUTY COOLER FOR YOUR TRANSMISSION TO RUN AS A STAND ALONE COOLER. WE USE THEM ON DAILY ON OUR REBUILD UNITS. DO NOT USE THE COOLER HOSE! PURCHASE HEAVY DUTY COOLER HOSE, LAST THING YOU WANT IS A COOLER HOSE BURSTING HOURS AWAY FROM HOME.
E**N
That prime shipping is great
The transmission cooler works just as well as a high dollar cooler.
T**.
if need just cooler, its okay, but as a kit, quality fitment of fittings, keep shopping.
Bought this to replace the cooler on my pickup,If the connectors actually fit the threaded holes on the cooler enough to seal off, been a great piece.I ended up putting it on a shelf, and not using it because fittings for the rubber hose screwed it, but didn't quite fit the bosses on the cooler, so I couldn't trust it to not leak...
Trustpilot
1 week ago
1 week ago
