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2001-2005 6.6L LB7 / LLY Duramax Transmission Cooler Line Kit Mishimoto MMTCL-DMAX-01

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    Upgrade Your 2001-2005 GM 6.6L Duramax with Mishimoto High-Performance Transmission Cooler Lines

    Replace cracked or leaking factory lines with the Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit. Engineered for peak performance and durability, these lines feature:

    • High-Strength Construction: PTFE line with a durable braided nylon outer wrap for maximum strength and resistance to abrasion, heat, and oil.   
    • Improved Flow: -10AN fittings ensure optimal fluid flow for efficient transmission cooling.   
    • Easy Installation: Designed for a straightforward and hassle-free installation.
    • Mishimoto Lifetime Warranty: Provides peace of mind with our industry-leading warranty.   

    Experience cooler, more reliable transmission operation with the Mishimoto Transmission Cooler Line Kit.

    Purchase 2001-2005 6.6L LB7 / LLY Duramax Transmission Cooler Line Kit Mishimoto MMTCL-DMAX-01

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    2001-2005 6.6L LB7 / LLY Duramax Transmission Cooler Line Kit Mishimoto MMTCL-DMAX-01

    SKU: mimMMTCL-DMAX-01
    $349.95

    Qualifies for Free Shipping Over $199



    Fits: 2001-2005 Duramax
     
    Free shipping on orders over $199**Contiguous US only
    Most in-stock orders ship in 1–2 business days
    Diesel experts: 615-962-8291
    Fits these vehicles
    • 2001 Chevrolet 6.6L LB7 Duramax
    • 2001 GMC 6.6L LB7 Duramax
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    • 2002 GMC 6.6L LB7 Duramax
    • 2003 Chevrolet 6.6L LB7 Duramax
    • 2003 GMC 6.6L LB7 Duramax
    • 2004 Chevrolet 6.6L LB7 Duramax
    • 2004 GMC 6.6L LB7 Duramax
    • 2004 Chevrolet 6.6L LLY Duramax
    • 2004 GMC 6.6L LLY Duramax
    • 2005 Chevrolet 6.6L LLY Duramax
    • 2005 GMC 6.6L LLY Duramax
    Warranty: Limited Lifetime

    Upgrade Your 2001-2005 GM 6.6L Duramax with Mishimoto High-Performance Transmission Cooler Lines
    Replace cracked or leaking factory lines with the Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit. Engineered for peak performance and durability, these lines feature:

    High-Strength Construction: PTFE line with a durable braided nylon outer wrap for maximum strength and resistance to abrasion, heat, and oil.   




    Improved Flow: -10AN fittings ensure optimal fluid flow for efficient transmission cooling.   




    Easy Installation: Designed for a straightforward and hassle-free installation.

    Mishimoto Lifetime Warranty: Provides peace of mind with our industry-leading warranty.   




    Experience cooler, more reliable transmission operation with the Mishimoto Transmission Cooler Line Kit.[...]

    Upgrade Your 2001-2005 GM 6.6L Duramax with Mishimoto High-Performance Transmission Cooler Lines

    Replace cracked or leaking factory lines with the Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit. Engineered for peak performance and durability, these lines feature:

    • High-Strength Construction: PTFE line with a durable braided nylon outer wrap for maximum strength and resistance to abrasion, heat, and oil.   
    • Improved Flow: -10AN fittings ensure optimal fluid flow for efficient transmission cooling.   
    • Easy Installation: Designed for a straightforward and hassle-free installation.
    • Mishimoto Lifetime Warranty: Provides peace of mind with our industry-leading warranty.   

    Experience cooler, more reliable transmission operation with the Mishimoto Transmission Cooler Line Kit.

    No Questions asked yet!



    Review 2001-2005 6.6L LB7 / LLY Duramax Transmission Cooler Line Kit Mishimoto MMTCL-DMAX-01
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    Installation Instructions PDF

    Proposition 65 Warning Information -  P65Warnings.ca.gov