# Mishimoto 01-19 Duramax Allison A1000 Transmission Pan Cast GR

This Mishimoto Aluminum Transmission Pan is a direct-fit, high-performance upgrade for your 2001-2019 Chevy/GMC 6.6L Duramax. Cast from high-quality aluminum and powder coated Gunmetal Gray, our transmission pan is a robust and long-lasting upgrade for your vehicle's transmission. With a sleek design and bottom ribs, this pan not only adds to the overall aesthetic of your truck but also provides improved cooling performance.----This transmission pan features internal baffles that reduce sloshing and enhance heat dissipation, resulting in smoother transmission performance. All the headaches that come with a flat gasket and messy sealants are eliminated with our precision-machined dovetail-style groove and O-ring seal. This groove positively retains the O-ring, so you never have to worry about it falling out of place during installation. Additionally, the Mishimoto 2001-2019 Chevy/GMC 6.6L Duramax Aluminum Transmission Pan adds an extra 6.1 quarts of ATF to help maintain optimal transmission operation.----Fed up with the frustration of trying to hold up a transmission pan with one hand while threading the fasteners in with the other? Mishimoto has you covered with pre-installed bolt retainers that hold the fasteners in the pan, allowing you to easily thread the bolts without dropping them on the ground, your head, or worse, that pan of nasty transmission fluid you just drained. Additionally, our pan comes equipped with a magnetic drain plug for easy draining and a 1/8-inch NPT port and plug for temperature sensors to make servicing your transmission and monitoring temperatures a breeze.----This direct-fit upgrade offers affordable durability and helps maintain smooth transmission operation, ensuring a long life for your transmission. Like all Mishimoto products, this transmission pan is backed by the Mishimoto Lifetime Warranty.

-   Increases fluid capacity by 6.1 quarts over the stock transmission pan for more cooling capacity
-   Durable cast-aluminum construction for long-lasting performance
-   Bolt retainers hold fasteners in place for easy installation

This Part Fits:

Year

Make

Model

Submodel

2001-2005

Chevrolet

Silverado 2500 HD

Base

2015-2019

Chevrolet

Silverado 2500 HD

High Country

2001-2006

Chevrolet

Silverado 2500 HD

LS

2001-2019

Chevrolet

Silverado 2500 HD

LT

2007-2019

Chevrolet

Silverado 2500 HD

LTZ

2003-2019

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

2015-2019

Chevrolet

Silverado 3500 HD

High Country

2007-2019

Chevrolet

Silverado 3500 HD

LT

2007-2019

Chevrolet

Silverado 3500 HD

LTZ

2007-2019

Chevrolet

Silverado 3500 HD

WT

2002-2005,2015-2019

GMC

Sierra 2500 HD

Base

2011-2019

GMC

Sierra 2500 HD

Denali

2001-2002,2006

GMC

Sierra 2500 HD

SL

2001-2019

GMC

Sierra 2500 HD

SLE

2001-2019

GMC

Sierra 2500 HD

SLT

2003-2014

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

2015-2019

GMC

Sierra 3500 HD

Base

2011-2019

GMC

Sierra 3500 HD

Denali

2007-2019

GMC

Sierra 3500 HD

SLE

2007-2019

GMC

Sierra 3500 HD

SLT

2007-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 589.12 CAD
- **Vendor:** Mishimoto
- **Type:** Transmission Pans

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 589.12 CAD | In stock |

## Images

- Photo - Primary
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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-01-19-duramax-allison-a1000-transmission-pan-cast-gr)
> Updated: 2026-06-28