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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
Verified Buyer
Fleece trans lines
Josh (MS) | December 13th, 2025
Fit was just right. Easy installation.
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
Transmission cooler lines
Jj (Texas) | December 24th, 2024
Fit just right. Fast shipping. Decent instructions.
Verified Buyer
FPE-TL-LBZ-LMM
Andy (Las Vegas NV) | December 3rd, 2024
Starightforward digital/online installation instructions. All lines fit as they should no excess line just the right length. Quality of the lines and fittings are great. Matched this up with PPE bar and plate trans cooler for my 07 LBZ replacing common leaky trans lines. Upgraded trans cooler while doing the lines. No leaks so far, happy with the lines so far.
Verified Buyer
Just ok
Thomas (Virginia) | February 6th, 2024
They serve their purpose. I figured for the price of fleece lines I would get hoses that fit in the route they were supposed to. I had to reroute my lines a few different ways to get the 2 from the trans to fit. It isn’t how they mention in their description. Time will tell how they hold up but I’m honestly underwhelmed by these lines at this point.
Verified Buyer
Trans cooler lines
Easton (Kentucky) | January 25th, 2024
Okay product, routed the same way the original ones went and they were almost too short. Didn’t come with any details. Fitting felt cheap but seem to tighten down fine. We’ll see how they do.
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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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