• Programmed 2001-2005 Silverado 2500 TCM, part 15169833. This module for Allison transmissions solves erratic shifting and communication codes.
  • Programmed 2001-2005 Sierra 3500 Transmission Module for Allison M74. Shows connectors and housing. Fixes P0700 & limp mode.
  • A 2001-2005 Sierra 2500 Transmission Module, part 15163073, showing its two main connectors. This pre-programmed TCM fixes limp mode and harsh shifting.
  • 2001-2005 Silverado 3500 TCM, part 15163073. This pre-programmed module resolves Allison transmission shifting problems and error codes.
  • A 2001-2005 Silverado TCM, part 15163073, showing the aluminum casing and two main electrical connector ports. This module fixes Allison transmission shifting issues.
  • 2001-2005 Sierra 3500 Transmission Control Module, part 15163072. Pre-programmed for Allison M74, fixes limp mode and DTC codes like U0100.
  • Programmed 2001-2005 Sierra 2500 Transmission Module, part 15163072, for Allison M74. Shows connectors for easy plug-and-play installation.
  • Programmed 2001-2005 Silverado 3500 TCM for Allison transmissions. Part 15163072, fixes DTCs like U0101 and erratic shifting.
  • Programmed 2001-2005 Silverado 2500 Transmission Control Module 15163072 for Allison M74. Fixes limp mode and erratic shifting.
  • Programmed 2001-2005 Sierra 3500 TCM for Allison transmissions. This module, part 15071240, solves shifting issues and DTCs like P0700.
  • Programmed 2001-2005 Sierra 2500 TCM for Allison transmissions, part number 15071240. Solves hard shifting, limp mode, and U0101 codes.
  • Programmed 2001-2005 Silverado 3500 TCM, part 15071240. This Allison transmission control module fixes harsh shifting and limp mode issues.
  • Programmed 2001-2005 Silverado 2500 TCM for Allison transmissions. Part 15071240, a direct-fit solution to clear codes like U0101 and restore shifting.
  • Pre-programmed 2001-2005 Sierra 3500 TCM for Allison transmissions. This module, part 09387820, resolves shifting issues and limp mode.
  • Front view of a 2001-2005 Sierra 2500 TCM, part number 09387820, showing the main housing and two large electrical connector ports for the Allison transmission.
  • Programmed 2001-2005 Silverado 3500 TCM, part 09387820, for Allison transmissions. This module fixes shifting problems and communication errors.
  • 2001-2005 Silverado 2500 TCM, part 09387820, showing the main housing and electrical connectors. This pre-programmed module fixes Allison shifting issues.
  • Programmed 2001-2005 Sierra 3500 TCM, part 09385220, for Allison transmissions. Shows module case and connectors to fix harsh shifting and DTCs.
  • Programmed 2001-2005 Sierra 2500 TCM, part 09385220, for Allison transmissions. This module fixes harsh shifting, limp mode, and DTCs like U0101.
  • Front view of a 2001-2005 Silverado 2500 TCM, part 09385220, showing the main electrical connectors. This module fixes Allison transmission shifting issues.

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