Lucky Seven 40k Transmission Oil Cooler lpd47391
Product ID: 708333326
🔧Complete mounting hardware included
🚛40,000 lbs GVW capacity
❄️Low pressure drop tech for max cooling
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❄️ Keep your transmission chill and your drive unstoppable!
The Lucky Seven 40k Transmission Oil Cooler LPD47391 is a heavy-duty cooling solution designed for vehicles with a maximum GVW of 40,000 lbs. Featuring advanced low-pressure drop technology, it optimizes transmission efficiency by reducing system pressure loss and heat buildup. The kit comes complete with all necessary mounting hardware for easy installation and is backed by a lifetime warranty, ensuring reliable performance and long-term protection for your transmission system.
| ASIN | B0D99MDZ1X |
| Brand | Lucky Seven |
| Customer Reviews | 4.0 4.0 out of 5 stars (139) |
| Date First Available | 31 July 2024 |
| Exterior | Brushed |
| Item Weight | 113 g |
| Item model number | LPD47391 40k |
| Manufacturer | 40k Transmission Oil Cooler |
| Manufacturer Part Number | LPD47391 40k |
| Model | 40k Transmission Oil Cooler |
| Product Dimensions | 10.16 x 7.62 x 7.62 cm; 113.4 g |
N**K
Terrible product.
Cooler lines blew out one day after install. As I am writing this July 2026 this cooler has now blown out between the plate and fin assembly. May have wrecked my transmission, dangerous and a fire hazard. Avoid this cooler
M**8
Good cooler for cheap
Get different hoses! But it's functional and keeps the temps under 200. Used on my 09 Tahoe
T**.
Overall good just cheap hose
Almost really good. It comes with enough hardware and fitting that you’ll need. Just don’t use the hose provided. It busted on me only after 2 hours of driving and had me on the side of the interstate. Replaced with some better stuff. Only reason I’m giving it 4 stars.
D**L
Over 1 Year Review GREAT!
Used it on a 2020 Chevy Express 3500 6.0 in my opinion a mandatory upgrade for the van even if lightly loaded. Went from burning trans fluid with very undersized stock trans cooler on a 6L90 to 140-160 degrees. In stop and go traffic on a hot day 90+ with A/C on, max temp. Was 185F trans fluid.
J**N
Get diffrent hoses
Works great but go get yourself diffrent hoses the ones that came with it are not good. Got a leak in a bend after maybe 100mi
Trustpilot
3 weeks ago
2 weeks ago