Overview
The ZF 6009.065.312 CONTROL UNIT is a critical electronic module that governs shift timing, pressure modulation, and clutch engagement within the WG210 series transmission. Positioned directly on the valve body assembly, this OEM genuine part (SKU: 6009.065.312) interprets signals from the transmission control module to ensure precise gear changes under varying load conditions. It interfaces directly with the 4657101039: TRANSMISSION HOUSING and the 4657201028: HOUS.FRONT SECT to maintain hydraulic integrity. Without a functioning control unit, the transmission cannot execute commanded shifts, leading to drivability issues in heavy-duty applications.
Symptoms of Failure
- Erratic or delayed gear engagement – When the control unit fails, the transmission may hesitate or slam into gear, particularly when shifting from neutral to drive. This is a common search query for “WG210 shift delay repair.”
- Intermittent limp mode activation – A failing 6009.065.312 often triggers a fault code, forcing the transmission into a single gear to protect internal components. This symptom is frequently searched as “transmission limp mode WG200.”
- Oil leaks at the valve body interface – Cracks in the control unit housing can allow ATF to seep past seals, mixing with electrical connectors. Users searching for “ZF transmission oil leak from control unit” will find this relevant.
- Harsh downshifts under load – Worn solenoids or degraded circuitry inside the unit cause abrupt downshifts when climbing grades, a specific failure mode for the WG210 series.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 6009.065.312 |
| Material | Die-cast aluminum with steel solenoid cores |
| Weight | 1.8 kg (4.0 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 65 mm |
| OEM Reference | ZF 6009.065.312 |
| Operating Voltage | 12V DC (24V compatible with adapter) |
| Seal Type | Nitrile rubber O-rings (included) |
Compatibility
This control unit is primarily designed for the ZF WG210 series, but it also fits select WG180, WG200, and WG220 models produced between 2005 and 2018. It is a direct replacement for OEM units in buses, construction loaders, and agricultural tractors. Always verify the 4657201013: HOUSING REAR PART and the 0631306792: CYLINDRICAL PIN alignment before installation to ensure proper solenoid actuation. For WG200 variants, additional calibration may be required.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Encloses gear train and supports control unit mounting |
| 4657201028 | HOUS.FRONT SECT | Front section housing for pump and torque converter |
| 4657201013 | HOUSING REAR PART | Rear housing section for output shaft support |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for control unit positioning |
| 0636100801 | CAP SCREW | Fastener for valve body cover plate |
| 4656301148 | FIXING PLATE | Secures control unit harness connector |
| 4657301034 | SCREEN SHEET | Fine mesh filter for valve body oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | Fastener for control unit mounting bracket |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply line to control unit |
Frequently Asked Questions
Q: Can the 6009.065.312 control unit be repaired, or must it be replaced?
A: While some shops attempt to resolder cracked joints, internal solenoid wear and seal degradation typically require full replacement. OEM genuine units like this one offer the highest reliability for WG210 applications.
Q: Will this part work with a WG180 transmission from a 2007 model?
A: Yes, the 6009.065.312 is backward-compatible with WG180 units, but you must also replace the 4657301034: SCREEN SHEET and 4657301035: SCREEN SHEET to prevent debris from damaging the new unit.
Q: How do I confirm the control unit is the root cause of harsh shifting?
A: Perform a resistance check across solenoid pins. Readings outside 4–6 ohms indicate internal failure. Also inspect the 4681301040: OIL FEED.HOUSG. for blockages that could mimic control unit failure.
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ZF 6009.065.312 CONTROL UNIT – Control Unit RFQ Support
PartsZF helps B2B buyers source ZF 6009.065.312 CONTROL UNIT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This control unit page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 6009.065.312 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657054033
- Documentation reference available for RFQ review
- Illustration section: LOOSE PARTS
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 6009.065.312 |
|---|---|
| Normalized SKU | 6009065312 |
| Part name | CONTROL UNIT |
| Product category | control unit |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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