Drivetrain› Automatic Transmissions and Components

Flagship One

Transmission Control Module

$168.99

SKU: 24240449

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flagship One transmission control module (TCM) is a guaranteed replacement for 2009 Chevrolet Silverado models with a 5.3L engine and part number 24240449. This unit belongs to hardware code 24242391.

It is pre-flashed with the latest manufacturer updates and requires no additional programming after installation. The TCM monitors vehicle speed and acceleration to manage transmission gear shifts efficiently, optimizing drivability, fuel economy, and overall transmission performance.
Show original supplier description
The Flagship One Transmission Control Module (TCM), also known as a Transmission Control Unit (TCU), is designed as a direct, plug-and-play replacement for the 2009 Chevrolet Silverado with a 5.3L engine and part number 24240449. This module is associated with hardware code 24242391. Each unit is rigorously tested and refurbished in-house by certified technicians to ensure peak performance and address common transmission issues such as trouble shifting gears, fault codes, limp mode, engine noise, stalling, and poor fuel economy. The TCM's primary function is to monitor vehicle speed and acceleration, dynamically managing transmission gear shifts for optimal efficiency, enhanced drivability, and improved fuel economy, making the transmission feel like new. This TCM comes fully programmed with the latest manufacturer software updates, eliminating the need for additional programming upon installation. To ensure correct programming, your Vehicle Identification Number (VIN) will be required during the checkout process. If your VIN is not immediately available, you can submit it later via email or phone. Flagship One offers a lifetime warranty, free shipping within the USA, and does not require a core return, allowing you to keep your old unit. They also emphasize their commitment to providing OEM products that are refurbished and 100% tested, backed by in-house experts and readily available customer support.

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

BrandFlagship One
Part Number24240449
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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