Upgraded Allison Transmission Cooler Lines 2006-2010 GM GMC Chevy 6.6L LBZ LMM Duramax Diesel 6.6



Key features
- •2006-2010 GM 6.6L LBZ/LMM Duramax Diesel (w/ Allison Transmission ONLY)
- •Includes All Fittings/Hardware
- •Transmission Lines
- •Concave Washers
Upgraded Allison Transmission Cooler Lines 2006-2010 GM GMC Chevy 6.6L LBZ LMM Duramax Diesel 6.6
List Price: $209.45$188.51DEALYou Save: $20.94 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (2)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers3.6
out of 5
Based on 10 reviews
5★
60%
4★
40%
3★
0%
2★
0%
1★
0%
Excellent upgrade
Ken C.✓ Verified Purchase•March 9, 2024
No instructions. Not rocket science but still would have been nice to have them. Excellent upgrade to the factory lines.
You will need to buy a couple O-rings.
Dave Little✓ Verified Purchase•March 4, 2024
Aside from the o-ring, just follow the instructions and don't be surprised if you need to move the fittings and lines around as you re-install the rest of the air handling plumbing you took out. I installed it on a Sunday and by the end of Monday has put 1000 miles on it without a drop leaked. I also created a bracket to hold the lines in the same location as the factory bracket that is too small for these lines.
Easy to change out
Blu✓ Verified Purchase•February 15, 2024
My husband picked up sum metal parts to replace his hoses in the truck, they were very hard to work with, would have had to remove all kinds of extra parts, so he ordered these rubber hoses & he was back on the road within the same day.!! Easy to install
It fits my 06 silverado
Kc✓ Verified Purchase•February 6, 2024
Good fit
Works great but follow the directions.
Chase C.✓ Verified Purchase•February 5, 2024
Worked great on my 2008 Silverado 2500 duramax. I didn't remove my grill and if you try to you will more than likely bust all your mounting clips. Just take the top cover off and work from the top.
Word of caution. The cooler inside the passenger side radiator tank is held in by the fitting that must be unscrewed out. So unscrew one fitting and replace with a fitting from the kit one at a time so you don't end up like me with 3 gallons of coolant on the ground and fishing the internal cooler out of the tank to line back up
Word of caution. The cooler inside the passenger side radiator tank is held in by the fitting that must be unscrewed out. So unscrew one fitting and replace with a fitting from the kit one at a time so you don't end up like me with 3 gallons of coolant on the ground and fishing the internal cooler out of the tank to line back up
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