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Endurant HD N automated transmission

Based on the Endurant HD automated transmission, the new Endurant HD N model is optimized to integrate with Cummins natural gas engines and features new software functionality and calibrations, and a new diaphragm spring clutch from Eaton that is designed to meet the thrust bearing load requirements of natural gas engines and protect the engine for optimal performance.

The integration between the engine and transmission results in improved launch performance, improved low-speed maneuverability, and smoother shifts when compared to previous natural gas engines and automated manual transmission combinations.

The new Cummins natural gas integrated powertrain is designed for fleets looking to reduce their carbon footprint and help support their sustainability initiatives.

Cummins X12N + Endurant HD N integrated natural gas powertrain

Learn more about this powertrain by watching this video.

New Software Functions and Calibrations For Improved Performance

Launch & Low-Speed Maneuverability

  • New software to improve launch
  • Engine torque control/reserve via spark timing
  • New clutch control logic and software

Smooth Shifts

  • Torque control/reserve via spark timing which reduces time to shift
  • Engine speed control during sync for smoother shifts
  • New control logic during shift

A powerful remote diagnostics solution

If there is a service issue, Endurant HD uses Eaton IntelliConnect,™ a telematics-capable system that provides near real-time monitoring of vehicle fault codes, prioritizes the critical events and provides accurate and comprehensive action plans by our technical experts. Unplanned downtime is reduced and quicker repair diagnosis gets you back on the road faster.

Peace of Mind

Like all Eaton Cummins automated transmissions, Endurant is backed by the support, solutions and expertise of the Roadranger network.

Endurant HD Service Literature

You can now access digital versions of our product service literature. These digital documents are always up-to-date and contain the same real-time information you would have access to using Product Information within our ServiceRanger 4 diagnostic tool.

Click on the Troubleshooting Guide, Service Manual or Service Parts thumbnails below to access each document.

Standard Warranty

Transmission Linehaul and Pickup & Delivery applications: 5 years / 750,000 miles
  Construction, Refuse, and Agriculture applications: 3 years / 300,000 miles
Clutch Linehaul and Pickup & Delivery applications: 3 years / 350,000 miles
  Construction, Refuse, and Agriculture applications:  2 years / 200,000 miles

Extended Protection Plans

Transmission 1 year; 2 year; and 2 year / 100,000 miles
Clutch 1 year / 100,000 miles; 2 year / 150,000 miles
Specifications

Transmission models

Model Maximum Engine Torque Capacity Lb.-Ft. [Nm]
EHD-14112C-N 1450 [1966]
EHD-16F112C-N 1650 [2237]
EHD-18112C-N 1850 [2508]

Specifications

    Overdrive (C ratio)
Speeds Forward Speeds 12
Reverse Gears 1 or 2
Capacities Maximum GCW lbs. [kgs]
80,000 [36,287]
Maximum Engine Torque lb.-ft. [Nm] 
1850 [2508]
Dimensions Length in. [mm]
37.9 [963.7]
Weight lbs. [kgs]
657 [298]
Gear Ratios
Overall Ratio 18.85:1
First Gear Ratio 14.43
Forward Gears Gear Ratio % Step    
1 14.43 31
2 11.05 31
3 8.44 31
4 6.46 31
5 4.95 31
6 3.79 30
7 2.91 31
8 2.23 31
9 1.70 31
10 1.30 30
11 1.00 31
12 0.77 --
Reverse Gears 1 16.92
2 12.95
Lubrication and Cooling Lubrication Interval miles [km] 750,000 [1,207,008]
Oil Capacity pints [liters] 16 [7.57]
Recommended Oil Eaton PS-386
PTO Capability
4-bolt No
6-bolt No
8-bolt Yes
Thru-shaft No
PTO Speed % of Engine 137
Combined PTO Torque lb.-ft. [Nm] 385 [522]
Typical Vehicle Types
Linehaul Regional haul
Beverage truck Refuse roll-off
Flatbed truck Landscape truck
Moving van Refuse transfer vehicle 
Stake truck  
   
  Application approval rules and details are provided through the truck manufacturer and Eaton Cummins.
Download Links

Endurant HD Service Literature

You can now access digital versions of our product service literature. These digital documents are always up-to-date and contain the same real-time information you would have access to using Product Information within our ServiceRanger 4 diagnostic tool.

Click on the Troubleshooting Guide, Service Manual or Service Parts thumbnails below to access each document.

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