Login
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit
 Next

Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit

Marsoni M251S
Sale price$174.97
Pay 4 payments of $43.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line KitSKU: MMTCL DMAX 01 UPC: 811580036088 Mishimoto 01 05 Chevrolet GMC 6. 6L Duramax (LB7 LLY) Transmission Cooler Line Kit Power your 2001 2005 Chevrolet Silverado 2500HD 3500 or GMC Sierra 2500HD 3500 with LB7 LLY Duramax engines to the wheels without transmission heat buildup. This Mishimoto kit replaces stock lines with high performance alternatives that ensure fluid reaches your upgraded cooler efficiently. Constructed for harsh conditions these
Easy Shipping

Quick Dispatch:

Your Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit ships.

Need Help?
Questions about Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 91 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shelley Weddington
Chelsea, US
★★★★★ 5
works perfect
Size: PP67-712 V1
Fixed my problem and good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2025
M
Verified Purchase
Mary B.
Massapequa, US
★★★★★ 5
Quality
Size: PP67-712 V1
Good as original quality. Heavy not lite like others
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
N
Verified Purchase
Nicole Davidson
Natrona Heights, US
★★★★★ 5
Great for 50hp Mercury
Size: PP67-712 V1
This is the right fit and has been working great on our pontoon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2025
M
Verified Purchase
Missy
Boise, US
★★★★★ 4
good item
Size: PP67-712 V1
arrived on time , haven't installed as of yet, will add comments once installed but looks like it is what I need and was as described .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2019
J
Verified Purchase
Jerry D.
Whiting, US
★★★★★ 5
Direct replacement on my 95 SeaRay 175
Size: PP67-712 V1
My boat started to have issues with not turning over when I used the ignition switch. Replaced the switch and had no effect. Replaced the solenoid and that fixed the problem. Good price, so I replaced all 3 solenoids (Trim/ starter). Solenoids had all needed hardware (nuts/washers)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2024

recommand products

Nitrous Outlet 4500 Stinger 3 System - Hard-line/.122 Nitrous Solenoid/.177 Fuel Solenoid/Boomerang Solenoid Bracket - (Gas/E85)(5-55 psi)(50-500 HP)(10lb Bottle)
Nitrous Outlet 4500 Stinger 3 System - Hard-line/.122 Nitrous Solenoid/.177 Fuel Solenoid/Boomerang Solenoid Bracket - (Gas/E85)(5-55 psi)(50-500 HP)(10lb Bottle)
831.00
 Nitrous Outlet 4500 Stinger 3 Solenoid Forward Conversion Kit - Braided Hoses/.122 Nitrous Solenoid/.177 Fuel Solenoid/Universal Solenoid Brackets - (Gas/E85)(5-55 psi)(50-500 HP)
Nitrous Outlet 4500 Stinger 3 Solenoid Forward Conversion Kit - Braided Hoses/.122 Nitrous Solenoid/.177 Fuel Solenoid/Universal Solenoid Brackets - (Gas/E85)(5-55 psi)(50-500 HP)
537.00
 Nitrous Outlet 4150 Stinger 4 Dry System - Hard-line/.122 Nitrous Solenoid/Boomerang Solenoid Bracket - (50-500 HP)(No Bottle)
Nitrous Outlet 4150 Stinger 4 Dry System - Hard-line/.122 Nitrous Solenoid/Boomerang Solenoid Bracket - (50-500 HP)(No Bottle)
663.50
 Nitrous Outlet 4500 Stinger 2 Race System - Braided Hoses/.178 Trashcan Nitrous Solenoid/.310 Fuel Solenoid/Universal Solenoid Brackets - (Gas/E85)(5-55 psi)(50-600 HP)(10lb Bottle)
Nitrous Outlet 4500 Stinger 2 Race System - Braided Hoses/.178 Trashcan Nitrous Solenoid/.310 Fuel Solenoid/Universal Solenoid Brackets - (Gas/E85)(5-55 psi)(50-600 HP)(10lb Bottle)
779.50
 Nitrous Outlet 4500 Stinger 3 System - Hard-line/.122 Nitrous Solenoid/.177 Fuel Solenoid/Deep Break Solenoid Bracket/Solenoids Mount Upside Down - (Gas/E85)(5-55 psi)(50-500 HP)(15lb Bottle)
Nitrous Outlet 4500 Stinger 3 System - Hard-line/.122 Nitrous Solenoid/.177 Fuel Solenoid/Deep Break Solenoid Bracket/Solenoids Mount Upside Down - (Gas/E85)(5-55 psi)(50-500 HP)(15lb Bottle)
863.50