# Mishimoto 06-10 Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) Transmission Cooler Line Kit

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 2006-20010 LLY/LBZ/LMM 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 2006-20010 LLY/LBZ/LMM 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.

-   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

This Part Fits:

Year

Make

Model

Submodel

2006

Chevrolet

Silverado 2500 HD

LS

2006-2010

Chevrolet

Silverado 2500 HD

LT

2007-2010

Chevrolet

Silverado 2500 HD

LTZ

2006-2010

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

2006

Chevrolet

Silverado 3500

LS

2006

Chevrolet

Silverado 3500

LT

2006

Chevrolet

Silverado 3500

WT

2007

Chevrolet

Silverado 3500 Classic

LS

2007

Chevrolet

Silverado 3500 Classic

LT

2007

Chevrolet

Silverado 3500 Classic

WT

2007-2010

Chevrolet

Silverado 3500 HD

LT

2007-2010

Chevrolet

Silverado 3500 HD

LTZ

2007-2010

Chevrolet

Silverado 3500 HD

WT

2006

GMC

Sierra 2500 HD

SL

2006-2010

GMC

Sierra 2500 HD

SLE

2006-2010

GMC

Sierra 2500 HD

SLT

2006-2010

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

2006

GMC

Sierra 3500

SL

2006

GMC

Sierra 3500

SLE

2006

GMC

Sierra 3500

SLT

2006

GMC

Sierra 3500

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

2007-2010

GMC

Sierra 3500 HD

SLE

2007-2010

GMC

Sierra 3500 HD

SLT

2007-2010

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 505.66 CAD
- **Vendor:** Mishimoto
- **Type:** Transmission Coolers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 505.66 CAD | In stock |

## Images

- Photo - Primary
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-06-10-chevrolet-gmc-6-6l-duramax-lly-lbz-lmm-transmission-cooler-line-kit)
> Updated: 2026-06-28