Mishimoto
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit - MMTCL-DMAX-01
Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit - MMTCL-DMAX-01
21 in stock
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- Veteran-Owned & Operated
- Free Shipping over $99
- 30-Day Easy Returns
- Genuine, Authorized Parts
Every truck owner knows that it doesn't matter how powerful or reliable your engine is if you can't get any power to the wheels. The transmission mated to your 2001-2005 LB7/LLY Duramax is essential to everything your truck does, and keeping it cool is crucial. Upgrading your transmission cooler with a Mishimoto performance transmission cooler is a good start, but the fluid still needs to get to the cooler. That's where this 2001-2005 GM 6.6L Duramax (LB7/LLY) Transmission Line Kit comes in. These high performance lines are constructed with a durable PTFE line that's wrapped in a high-strength nylon braid. The PTFE line is extremely oil and heat resistant for durability in even the harshest environments. To protect the lines against higher line pressures that come with performance transmissions, We've wrapped them in braided high-strength nylon. This wrap prevents expansion and further protects the lines from abrasion. Finally, these lines are capped off with -10AN fittings for a secure and leak-free connection. Like all Mishimoto Duramax products, these transmission lines are backed by our Mishimoto Lifetime Warranty for a lifetime of performance.
Features & Benefits
- 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
Downloads & Resources
Shipping & Returns
Shipping & Returns
Free shipping on orders over $99. Most in-stock items ship within 1–2 business days from our US warehouses. Easy 30-day returns on unused parts in original, undamaged packaging.
Fitment & Support
Fitment & Support
Check the product title and description for application and fitment details. Not sure it fits your build? Talk to our team — we're enthusiasts who actually drive, and we'll help you get the right part the first time.
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