Description:

Automatic Transmission Oil Cooler (Heat Exchanger) - Aluminum. For 5-Speed Allison Automatic Transmission; Code 7445, 3959. Compatible with or fits: 2001 - 2006 Chevy Silverado 2500 HD - with Automatic 5-Speed Allison. Automatic Transmission Oil Cooler. Review Description to Ensure Proper Fit.