
Available Options
- Part Number: TCMGMALSN5
- Est. Ship Time: Usually Ships By Next Business Day
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If you're looking for a replacement TCM for your 01-05 Duramax or 8.1L gas with the 5 speed Allison transmission look no further than this great option from Diamond T.
These Transmission Control Modules (TCMs) are completely overhauled to a condition that surpasses OEM standards. With a 1-year warranty, you can trust in their durability and performance.
Common TCM Issues Include:
• Trouble Shifting Gears
• Fault/Trouble Codes
• Limp Mode
• Engine Noise
• Engine Stalling
• Poor Fuel Economy
Features
• Completely overhauled to exceed OEM standards
• 1-year warranty included
• Designed for 2001-2005 Chevy/GMC 6.6L Duramax LB7/LLY & 8.1L Gas engines
• No need for a rebuildable core to receive a core refund
• Free programming to VIN provided
• Plug and play installation
Core charge applies, customer is responsible for core return shipping.
Diamond T: TCMGMALSN5

























