Pay in 4 interest-free payments of $62.50 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
part number 21564811 and 21513170
REPAIR KIT (RETARDER)
Its OEM specifications ensure reliable and efficient performance
SYNCHRONIZER RING (Carbon)
Enhance the performance of your semi truck's transmission with our OEM high quality spacer rings
DT12 TRANSMISSION TRAINING DEPOSIT | September 2nd - 3rd, 2026 vehicle training part number 21564811 and 21513170Our DT12 Transmission Training Program is designed for mechanics and engineers looking to specialize in the diagnosis, repair, and rebuild of Detroits DT12 automated manual transmission. This hands on course provides in depth instruction on the DT12 system, including troubleshooting, maintenance, and electronic controls to maximize performance and reliability. Program Highlights: Comprehensive Teardown & Rebuild Learn step by step procedures for
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