Exact family and transmission type
Eaton Cummins Endurant HD is a 12-speed automated manual transmission. It is distinct from 18-speed XD and XD Pro.
Versions and era boundaries
Use the exact Endurant HD model and current/archived product sheet.
Published ratings and architecture
Published torque, GCW, PTO and ratio data apply only to named models and approved applications. Use the data sheet for the exact model; a family maximum does not establish the limit of the installed unit or truck.
Engine and truck relationships
Endurant HD appears in qualified on-highway OEM builds with approved engines; presence varies by make, model and year.
Tag, model-code and software verification
Verify tag, clutch/actuator service, control software, engine pairing and factory build.
Integration and later-swap cautions
An AMT swap requires mechanical, electronic and calibration compatibility, not only bellhousing fit.
Low-speed, grade and duty-cycle questions
Linehaul cruise, grade, startability, reverse and gross weight should be matched to HD's published application.
Service evidence and road-test scope
Request fluid/service records where applicable, clutch and actuator history for AMTs, control-module fault reports, calibration history and repair invoices. Evaluate engagement, shifts, reverse manoeuvring and warnings in a safe, suitable road test with qualified follow-up for abnormal behaviour.
Reviewed and verification limit
Reviewed September 4, 2026. Torque, gross-combination, PTO and application limits apply only to exact published models and configurations. This page is not a fitment or operating approval.
Verify the individual truck
Build information, component tags, service records, diagnostics and a qualified inspection take priority over general family-level guidance.
Sources & Technical References
Primary manufacturer and government resources for continuing configuration-specific research.
Eaton Cummins — Endurant HD