eBay

The ACDELCO A40 TCM 6-8 GMC Chevrolet Silverado Sierra LBZ Duramax Allison 29544772 is a Transmission Control Module specifically designed for General Motors vehicles. It has a maximum amperage of 40A and comes with a 1-year manufacturer warranty. The product is placed on the front of the vehicle and is interchangeable with part numbers 29544772 and 29545321, ensuring compatibility with a range of GMC, Chevrolet, and Sierra models. This high-quality component is essential for maintaining the proper transmission control in your vehicle.

OEM Allison® Transmission Control Module (TCM) ACDELCO A40 29544772 / 29545321 – Remanufactured

Upgrade or replace your transmission control module with this OEM Remanufactured Allison® A40 TCM. Designed for 6-speed and 8-speed GMC and Chevrolet Duramax trucks, this genuine ACDELCO unit ensures top performance, reliability, and smooth shifting.

✅ Part Numbers: 29544772, 29545321
✅ Model: Allison® A40 / ACDELCO OEM
✅ Condition: Professionally remanufactured, fully tested, and ready to install
✅ Fits:

Features:

100% OEM ACDELCO / Allison quality
Bench tested and programmed to factory specifications
Plug-and-play installation (no modifications required)
Ideal replacement for faulty or failed TCM units

Package Includes:

1x Remanufactured Allison® A40 Transmission Control Module

Notes:
Please verify your part number before purchase (29544772 or 29545321). Professional installation is recommended.

Keywords (for eBay SEO):
Allison A40 TCM, ACDELCO 29544772, 29545321, Transmission Control Module, Duramax, Silverado, Sierra, 6-speed, 8-speed, OEM, Reman, LBZ, LMM, LML, Allison 1000, Allison 2000.