🛠️ Upgrade your Duramax cooling game—because your rig deserves the best!
The FPE-TL-LB7-LLY Transmission Cooler Line is a precision-engineered replacement part designed exclusively for 01-05 GM Duramax 6.6L LB7/LLY Allison transmissions. Made from premium Fleece materials, it features a 0.75-inch outside diameter and 0.05-inch wall thickness for optimal oil cooling performance. Weighing 5.2 pounds with a machined exterior, this durable line ensures reliable, long-lasting operation and easy installation, making it the go-to upgrade for serious Duramax owners.
| Brand | Fleece Performance Engineering |
| Material | Fleece |
| Color | Gray, Black |
| Item Weight | 5.2 Pounds |
| Nominal Wall Thickness | 0.05 inches |
| Outside Diameter | 0.75 Inches |
| UPC | 635909311003 |
| Manufacturer | Fleece Performance Engineering |
| Global Trade Identification Number | 00635909311003 |
| Model | Fleece Performance - 01-05 GM Duramax 6.6L LB7/LLY Allison Transmission Cooler Lines (FPE-TL-LB7-LLY) |
| Item Weight | 5.2 pounds |
| Product Dimensions | 14 x 14 x 5 inches |
| Item model number | FPE-TL-LB7-LLY |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | FPE-TL-LB7-LLY |
R**D
I woul recommend
Great quality product ,on line instructions were easy to follow,I hooked them up to an after market large fan controlled cooler,worked great .mine is an lly I used the larger washer at the radiator .great ad one to my truck.
J**
A little patience goes a long ways
Got this kit yesterday and installed it 12/23/23. Everything was fine... except that with my vehicle the hoses need too be swapped. Refer to the online directions. Another pro tip... Orings don't stay on the fitting, they go under the washers (patience or paying attention might have helped the first time). There are a couple of good YouTube videos if you get stuck. Other than that the kit was very good, I had zero issues with the fittings, just take your time.
T**Y
Fixing the leaking aluminum lines that are oem. Great product
Great replacement for the aluminum lines that came on it from the dealer. Very easy to put on. Installed with ppe transmissionaluminum cooler.
T**L
Solid Product
Everything I expected. You get what you pay for. Quality product that is overbuilt, and will last longer than the truck.
M**A
Good quality
All the Duramax need aftermarket tranmission line lly 05
T**.
Made very cheap
Lines are thin rubber. Fittings are a very soft material and strip extremely easy. To the point of them not sealing because you cant get them tight enough. 10 out of10 do not reccomend. Coming from a real mechanic. Buy KBD lines. There 100% quality and worth your money.
A**E
Fleece
Easy install just wish i did not have to look up the instructions.
M**L
Fitting are cheap and over sized.
Lines are great but the cheap fittings they send are over sized. So when you install them it cuts the threads and you have metal fillings inside. So you will need to pull them back out and get all that out of there before running the metal fillings through your Transmission. They could afford to send better fittings or just the right size fittings whit the amount these cost.
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