Description
Fits
Year | Make | Model | Engine |
2011 - 2014 | GM | 2500/3500 | LML 6.6L Duramax |
Swap out your leaky transmission lines with these top - notch, heavy - duty and flexible ones. This kit is the ultimate replacement for your LML truck! With a bigger diameter than the stock and a tough hose wrap, it boosts overall flow and guards against future breakdowns.
Part Number: FPE - TL - LML - 1114
Features
- Heavy - duty construction
- High - flow design
- Flexible for easy installation
- 5/8' hose with increased diameter
- Explosion - proof polyester sleeve for protection
Includes:
- Kit has (3) 5/8' ID transmission lines with AN fittings
- (6) 7/8' - 14 O - ring to - 10AN fittings
- (2) Large OD washers
- Double hose clamps
- Locking cable ties and fir tree cable clamps
Notes
- Not suitable for Cab and Chassis applications
Installation
Warranty
- 1 - year warranty (parts only)


Using this transmission cooler line set is straightforward. First, find the old, leaking transmission lines in your 2011 - 2014 GM 2500/3500 with the LML 6.6L Duramax engine. Then, carefully remove them and replace them with the lines from this kit. Make sure to connect all the fittings properly. Remember, this set is not for Cab and Chassis applications. For maintenance, regularly check the lines for any signs of damage or leaks. The explosion - proof polyester sleeve helps protect the lines, but if you notice any wear, it's a good idea to inspect further. This kit comes with a 1 - year parts - only warranty, so if you have any issues within that time, reach out for assistance.