Stepless ratio control
Continuously variable operation helps the tractor maintain the appropriate speed and tractive response as field and transport conditions change.
ZF Agriculture
ZF ECCOM – continuously variable transmissions for demanding agricultural tractors.
ZF ECCOM is a continuously variable tractor transmission family for demanding agricultural applications. Its modular architecture, automatic ratio management and active standstill support precise, comfortable operation from delicate manoeuvres to heavy field work, while efficient power management helps make better use of available engine output.
The hydrostatic-mechanical power-split concept combines smooth stepless speed control with productive traction, helping high-power tractors adapt their operating strategy as field, implement and transport conditions change.
Core product benefits
ECCOM combines continuously variable speed control, traction and operator comfort for demanding tractor work. Its architecture is designed to keep the driveline controlled and productive as the load, speed and operating condition change.
Active standstill support
The ECCOM concept supports controlled stopping and starting, helping the operator manoeuvre precisely around implements, slopes and obstacles.
Automatic ratio management
The transmission manages the ratio and operating strategy so available engine output can be used efficiently across demanding work cycles.
Comfortable heavy-duty operation
Smooth CVT behaviour combines precise low-speed control with productive field and transport performance in high-power tractor applications.
Modular transmission architecture
The family is built around a modular CVT architecture that can be integrated into different tractor and driveline configurations.
Integrated tractor functionality
The ECCOM concept is designed to work with tractor control systems and related functions required for productive agricultural operation.
ECCOM operating functions
The CVT combines mechanical, hydrostatic and electronic functions. Understanding how these work together is important when a tractor shows a driveline symptom, because a change in behaviour does not automatically mean that an internal mechanical component has failed.
Four automatically managed driving ranges
The range concept combines four automatically managed ranges with stepless ratio changes across a speed range from 0 to 60 km/h, allowing the operating strategy to follow the work condition.
Hydrostatic-mechanical power split
The CVT combines hydrostatic and mechanical power paths to provide continuously variable speed control with efficient power transmission.
Active standstill
Active standstill support helps hold the tractor in a controlled condition without relying on repeated clutch or brake operation during precise manoeuvring.
Engine and transmission coordination
Ratio management and tractor control functions work together to balance speed, traction, comfort and engine utilisation.
PTO and vehicle-system integration
ECCOM is part of a complete tractor driveline and must be assessed together with the vehicle electronics, PTO and hydraulic systems when symptoms occur.
ZF TERRACOM condition monitoring
TERRACOM uses vehicle and transaxle sensor information to monitor system behaviour and load in real time, supporting earlier identification of abnormal operating conditions.
TERRA+ generator integration
TERRA+ integrates high- and low-voltage generator functions into the transmission housing, with up to 80 kW continuous electrical power for the tractor or implement where specified.
Understanding ECCOM configurations
ZF ECCOM is a product family, not one single housing format. Depending on the tractor architecture, OEM layout and power class, the family can be installed in different ways.
Why this matters: Power level alone does not determine the installation. Match the variant to the OEM, vehicle architecture and type plate before selecting parts, fluid class, service procedure or diagnostic route. Similar designations do not automatically mean interchangeable units.
ECCOM applications and typical ranges
ZF ECCOM is designed for agricultural tractors that need precise low-speed control, productive field performance and efficient transport operation. The public family range and applications below are indicative; exact vehicle compatibility remains configuration-specific.
| Application | ECCOM designations | Typical range and use |
|---|---|---|
| Standard and high-power agricultural tractors | ECCOM 1.3, 1.5, 1.8, 2.0, 2.4, 2.9, 3.0, 3.1, 3.5, 4.5, 5.0, 5.5 and 6.0 | High-power tractor applications; the ECCOM family is described for power levels up to approximately 620 hp, while individual configurations and vehicle limits differ. |
| Field work and implement operation | ECCOM CVT family | Stepless speed control supports accurate low-speed work, controlled manoeuvring and productive operation when the tractor load changes continuously. |
| Transport and road operation | ECCOM CVT family | Automatic ratio management supports smooth acceleration and efficient engine utilisation during transfer and road work. |
| Heavy-duty tractor platforms | ECCOM 5.5 and ECCOM 6.0 documented configurations | Specific public ECCOM material covers high-power platforms up to the 400–650 hp class. Exact vehicle configuration must be confirmed before parts or repair planning. |
Main OEM and vehicle installations
The table below lists documented OEM and vehicle installations for the ZF agricultural product family. Use it as an identification aid, then confirm the exact unit from the type plate before ordering parts or planning repair work.
Showing all 9 installations
Swipe or use the arrows to browse the complete agricultural-vehicle installation list. A listed vehicle is an identification lead, not permission to assume interchangeability.
Swipe horizontally on mobile or use the arrows and page dots to browse all pages.
ZF ECCOM variants by OEM and configuration
This reference groups documented ECCOM application associations by OEM and designation. Use the filters and pages to narrow the family reference, then confirm the exact unit from the vehicle and type plate.
Showing all 23 OEM references
Swipe or use the arrows to browse the complete ECCOM OEM reference. A listed association is an identification lead, not permission to assume interchangeability. Confirm the exact ZF designation, Part List Number and Serial Number from the unit type plate before selecting parts, lubricant or repair procedures.
Oil change and service identification
ECCOM transmissions do not share one universal lubricant or service interval. The TE-ML 06 application class, tractor manufacturer, exact transmission designation and operating conditions determine the service provision. Confirm the current entry before filling, ordering a filter or planning an oil change.
| ECCOM group | Application | TE-ML 06 class | Service guidance |
|---|---|---|---|
| ECCOM 1.3 | Same Deutz-Fahr / TYM applications | 06N | Model-specific; follow the current TE-ML 06 entry and vehicle instructions. |
| ECCOM 1.5 | Same Deutz-Fahr applications | 06D | Model-specific; confirm the exact unit before selecting oil or filters. |
| ECCOM 1.5 / 1.8 / 2.0 / 2.4 / 2.9 | John Deere applications | 06E | Confirm the current TE-ML 06 entry, service provision, interval and quantity for the exact application. |
| ECCOM 3.0 / Terramatic TMG 25, 28, 45 | Claas / JCB applications | 06P | Model-specific; do not transfer a service interval between variants. |
| ECCOM 3.1 / 3.5 / 4.5 / 5.0 / 5.5 | Claas / JCB applications | 06H | Model-specific; confirm the current TE-ML entry, oil and filter procedure. |
| ECCOM 6.0 | CNH application | 06T | Model-specific; confirm the current TE-ML entry, oil and filter procedure. |
Do not transfer the oil, quantity, filter or interval from one ECCOM generation to another. When the type plate is incomplete or the unit has a special application, send the identification data to ATS before service work begins.
ZF ECCOM FAQ
Technical answers for tractor owners, agricultural workshops and manufacturers.
Why can an ECCOM CVT show a driveline symptom without a mechanical gear-shift fault?
ECCOM controls speed through continuously variable ratio management rather than conventional fixed gear changes. Hesitation, surging, poor response or a loss of drive can therefore involve the ratio-control system, active standstill function, operating data, oil condition, hydraulic or mechanical pressure, sensors, software or internal components. The exact model, operating temperature, load, speed and direction must be assessed together. Contact ATS with the transmission identification and the conditions in which the symptom appears before parts are replaced.
What should be checked when an ECCOM tractor hesitates, surges or does not hold correctly?
Record whether the symptom occurs during start-off, low-speed manoeuvring, field work, transport or a change of direction, and whether it changes with oil temperature or load. The diagnosis should combine fault memory, live operating data, oil level and condition, filter history, hydraulic and mechanical pressure behaviour, sensors, control calibration and the active-standstill function. These symptoms should not be used to assume an internal mechanical failure without testing. Send the complete information to ATS so the correct diagnostic and repair route can be defined.
How is the correct ECCOM lubricant and service interval selected?
ECCOM variants are assigned to different TE-ML 06 application classes, and the service-fill provision is not universal across the family. The exact transmission designation, tractor manufacturer, operating conditions and current TE-ML entry must be checked before filling. For John Deere applications listed in class 06E, confirm the current service provision, interval and quantity from the applicable TE-ML and vehicle information. Contact ATS when the type plate or application class is incomplete.
When should an ECCOM transmission be removed for repair?
Removal should follow diagnosis, not simply a warning message or one fault code. A controlled decision normally follows checks of the complete driveline symptom, fault memory and live data, oil and filter condition, leakage, temperature, hydraulic and mechanical pressure behaviour, sensors and the vehicle control system. Removal becomes more likely when the evidence points to internal damage, persistent loss of drive, abnormal mechanical noise, contamination or a pressure problem that cannot be resolved externally. ATS can help separate a control or hydraulic issue from a transmission overhaul requirement.
What is ZF TERRACOM and what does it monitor?
ZF TERRACOM is a condition-monitoring function, not a separate transmission or a mechanical ECCOM variant. Where supported by the specific configuration, TERRACOM uses available vehicle and transmission sensor and actuator information to monitor system behaviour, load and operating conditions. This can support earlier identification of deviations, maintenance planning and reduced downtime, but it does not replace complete diagnosis or by itself prove an internal mechanical failure. Available data depends on the tractor manufacturer and exact configuration. If abnormal behaviour occurs, send ATS the identification data, fault codes and conditions in which the symptom appears so the correct diagnostic and service route can be defined.
Need post-sale support for a ZF ECCOM transmission?
Send ATS the data from the transmission identification table, including the Part List Number and Serial Number, together with the tractor manufacturer and model, machine serial number, operating hours, fault codes, symptoms, operating temperature, oil and filter history and any available diagnostic information. We will help define the appropriate next step for parts, diagnosis, repair or remanufacturing.
Contact ATS