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Fleece Allison Transmission Cooler Lines FPE-TL-LBZ-LMM
PART#
FPE-TL-LBZ-LMM | SKU FPE-TL-LBZ-LMM
★★★★★
Vehicle Fitment For:
2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ/LMM
See full application list below
$289.99
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Description
The Fleece FPE-TL-LBZ-LMM Allison Transmission Cooler Lines fix the old leaky transmission lines in your 2006-2010 GM 6.6L Duramax LBZ & LMM. These heavy-duty, high-flow, flexible transmission lines are just what you need for trouble-free performance from your Allison Transmission. It includes all of the necessary fittings whether your truck is running a stock radiator or Setrab equipped radiator.
Features:
- Flexible
- 7/8" -14 to -10AN
- Heavy-Duty Transmission Lines
- Fine Thread Fittings For Setrab Oil Coolers
- 1 Year Limited Warranty
Kit Includes:
5/8" ID Transmission Lines
(6) 7/8"-14 O-Ring To -10an Fittings
(2) M22x1.5 To -10 An Setrab Fittings
(2) Large Od Washers
Double Hose Clamps And Locking Cable Ties
5/8" ID Transmission Lines
(6) 7/8"-14 O-Ring To -10an Fittings
(2) M22x1.5 To -10 An Setrab Fittings
(2) Large Od Washers
Double Hose Clamps And Locking Cable Ties
Note:
Fleece FPE-TL-ST Setrab Fittings are included for installation on trucks with aftermarket radiators. Due to the many possible combinations, fitment is not guaranteed on non-stock components.
Instructions & Tech Info
Installation Info
Reviews For Fleece Performance FPE-TL-LBZ-LMM
Overall Rating
/5
18 Reviews
Verified Buyer
Great but…
Micaiah lmm (Arroyo Grande) | August 31st, 2025
Overall 4 stars. Haven’t tested them out yet or used them but when installing BE CAREFUL. I was removing the factory hoses and 1 of them was really tight. Ended up breaking the fitting on my trans cooler. Make sure to hold a wrench or channel locks on the fitting of the trans cooler before loosening either side
Verified Buyer
Order 2147039
Ben (Buffalo NY) | December 11th, 2023
I ordered the fleece performance engineering LBZ/Allison transmission line kit to replace my stock leaky transmission lines. I am happy with the fit and quality however I feel each hose could benefit from being an inch longer to avoid having to pull on them to install. I realize they will probably stretch and break in over time. The instructions on fleece performance engineering’s website are also misleading and I had to call them direct to clear up a typo within their routing diagram. Other than that I’m very happy with the outcome, no leaks.
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Frequently Asked Questions
Will these hoses work for my 2007 Chevy 2500HD classic Duramax?
Yes, the Fleece FPE-TL-LBZ-LMM Allison Transmission Cooler Lines will work on all 2006-2010 GM 6.6L Duramax LBZ/LMM applications.
Will these hoses work for my LLY? I noticed it said 2006-2010 LBZ. I was wanting to know if they will work on my 2006 2500hd with the 2006 LLY...
The Fleece FPE-TL-LBZ-LMM Allison Transmission Cooler Lines are only to be used on the LBZ and LMM engines. If you have a 2006 LLY with the VIN Code 2, these lines will also work with your truck. (To Verify: Check the 8th digit in the VIN number.)
Are these made to fit stock radiators or XDP parts?
Yes, the Fleece FPE-TL-LBZ-LMM Allison Transmission Cooler Lines will work on stock and most aftermarket transmission coolers.
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Specifications For Fleece Performance FPE-TL-LBZ-LMM
MPN
FPE-TL-LBZ-LMM
SKU
FPE-TL-LBZ-LMM
GTIN
635909311010
ID
20808
Manufacturer Name
Fleece Performance
Shipping Weight
5.00 lb.
Shipping Length
14 in.
Shipping Width
14 in.
Shipping Height
5 in.
Fuel Type
Diesel
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference #
20835123, 20835125
Internal
L34R19
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