Gift CardContactAbout
0 My Cart

Your cart is currently empty.

Continue shopping
Total: $0.00
View cart
Toggle menu
0
  • Home
  • Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
-3%
Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Load image into Gallery viewer, Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Load image into Gallery viewer, Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Load image into Gallery viewer, Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Load image into Gallery viewer, Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)

Have Questions?

(425) 295-1665 Ask an Experts

  • Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)

Mishimoto
misMMTCL-DMAX-06
In stock
Transmission Cooler
$385.00 $369.99
Ensure optimal transmission performance and longevity with the Mishimoto 2006-2010 Chevrolet and GMC Duramax Transmission Line...
$369.99
Mishimoto 06-10 Chevrolet/GMC Duramax Transmission Cooler Line Kit (LLY/LBZ/LMM)
Description

Ensure optimal transmission performance and longevity with the Mishimoto 2006-2010 Chevrolet and GMC Duramax Transmission Line Kit. Designed specifically for models equipped with the LLY, LBZ, and LMM engines, this high-quality kit guarantees efficient fluid flow to your upgraded transmission cooler, helping maintain proper operating temperatures under demanding conditions. The kit features durable PTFE inner lines that resist extreme heat and oil, ensuring reliable operation even in harsh environments.
The high-strength nylon outer braid reinforces the lines, preventing expansion under high pressure and protecting against abrasion, while the -10AN fittings provide a secure, leak-free connection. With a working pressure of 2,000 psi and a burst pressure of 6,000 psi, these lines are engineered to handle the demands of high-performance transmissions. Proper fluid delivery is critical for maintaining transmission health and performance, making this kit an essential upgrade for Duramax owners looking to enhance their vehicle's reliability and efficiency.
Backed by Mishimoto’s lifetime warranty, this transmission line kit offers a lifetime of dependable performance, ensuring your truck remains ready for whatever the road throws at it. Installation is straightforward and compatible with various GMC Sierra 2500 HD models from 2007 to 2010 and Chevrolet Silverado 2500 HD trucks within the same years, making it a versatile solution for Duramax owners looking to upgrade their transmission cooling system.

Features:

  • High-strength nylon outer braid prevents expansion under high pressure and protects line against abrasion
  • PTFE inner liner is extremely oil and heat resistant for maximum durability
  • Working pressure of 2,000 psi and burst pressure of 6,000 psi

Fitment:
2006 Chevrolet Silverado 2500 HD LS
2006 Chevrolet Silverado 2500 HD LT
2006 Chevrolet Silverado 2500 HD WT
2006 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2006 GMC Sierra 2500 HD SL
2006 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SLT
2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2007 Chevrolet Silverado 2500 HD LT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007 Chevrolet Silverado 3500 HD LT
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2007 GMC Sierra 2500 HD SLE
2007 GMC Sierra 2500 HD SLT
2007 GMC Sierra 2500 HD WT
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2007 GMC Sierra 3500 HD WT
2008 Chevrolet Silverado 2500 HD LT
2008 Chevrolet Silverado 2500 HD LTZ
2008 Chevrolet Silverado 2500 HD WT
2008 Chevrolet Silverado 3500 HD LT
2008 Chevrolet Silverado 3500 HD LTZ
2008 Chevrolet Silverado 3500 HD WT
2008 GMC Sierra 2500 HD SLE
2008 GMC Sierra 2500 HD SLT
2008 GMC Sierra 2500 HD WT
2008 GMC Sierra 3500 HD SLE
2008 GMC Sierra 3500 HD SLT
2008 GMC Sierra 3500 HD WT
2009 Chevrolet Silverado 2500 HD LT
2009 Chevrolet Silverado 2500 HD LTZ
2009 Chevrolet Silverado 2500 HD WT
2009 Chevrolet Silverado 3500 HD LT
2009 Chevrolet Silverado 3500 HD LTZ
2009 Chevrolet Silverado 3500 HD WT
2009 GMC Sierra 2500 HD SLE
2009 GMC Sierra 2500 HD SLT
2009 GMC Sierra 2500 HD WT
2009 GMC Sierra 3500 HD SLE
2009 GMC Sierra 3500 HD SLT
2009 GMC Sierra 3500 HD WT
2010 Chevrolet Silverado 2500 HD LT
2010 Chevrolet Silverado 2500 HD LTZ
2010 Chevrolet Silverado 2500 HD WT
2010 Chevrolet Silverado 3500 HD LT
2010 Chevrolet Silverado 3500 HD LTZ
2010 Chevrolet Silverado 3500 HD WT
2010 GMC Sierra 2500 HD SLE
2010 GMC Sierra 2500 HD SLT
2010 GMC Sierra 2500 HD WT
2010 GMC Sierra 3500 HD SLE
2010 GMC Sierra 3500 HD SLT
2010 GMC Sierra 3500 HD WT

Read More
Read Less

Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

Your cart

×