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Drivetrain› Automatic Transmissions and Components

Allison

Deep Sump Transmission Pan

$147.64 $134.82 Save $12.82

SKU: 29536522

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Overview

The Allison 29536522 is a genuine stamped steel deep sump transmission pan designed for heavy-duty applications. It increases fluid capacity by approximately 3 quarts over stock, which helps keep the transmission cooler and performing better. The deep sump design does not reduce ground clearance, maintaining off-road capability. This pan is a direct replacement for the factory shallow pan and is made to Allison's OEM standards for reliability and durability.
Show original supplier description
The Allison 29536522 is a genuine stamped steel deep sump transmission pan, originally designed by Allison for heavy-duty applications and built to withstand the demands of Chevrolet and GMC HD trucks. This deep sump pan increases transmission fluid capacity by approximately 3 quarts over the stock shallow pan, leading to improved cooling and extended transmission performance, especially during towing, hauling, or off-road use. Despite its increased capacity, the design ensures there is no reduction in ground clearance, preserving the vehicle's off-road capability. It serves as a direct replacement for the factory shallow pan, though a deep sump filter is required for proper fitment. This genuine Allison part offers a direct upgrade path for Allison 1000 series transmissions from 2001 to 2019. It is noted that the drain plug and pan gasket are typically reusable and not included with the pan assembly.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAllison
Part Number29536522
CategoryDrivetrain
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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