Overview
This genuine ZF 6009.092.751 component is a critical internal actuator or valve body element specifically engineered for the WG 190 Series transmission family. Positioned within the hydraulic control module, it directs oil flow to regulate clutch pack engagement and shift timing. The SKU 6009.092.751 ensures precise pressure modulation, directly impacting shift quality and torque converter lockup behavior. As an OEM genuine part, it guarantees exact fitment and metallurgical compatibility with the transmission housing assembly, including the 4657101082: TRANSMISSION HOUSING and the 4657201166: HOUS.FRONT SECT.
Symptoms of Failure
- Erratic shift timing or gear hunting: A worn 6009.092.751 causes inconsistent hydraulic pressure, leading to delayed upshifts or unexpected downshifts under load.
- Internal transmission fluid leaks: Deteriorated sealing surfaces on this part allow ATF to bypass, resulting in low line pressure and visible drips from the bell housing area.
- Harsh engagement or clutch slip: When the valve body element fails, clutch packs may engage abruptly or slip during acceleration, generating a distinct burning odor.
- No reverse or forward gear engagement: Complete hydraulic blockage from a seized 6009.092.751 can prevent the transmission from selecting any drive range.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 6009.092.751 |
| Material | Hardened aluminum alloy with nitrile seals |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 142 mm |
| Width | 68 mm |
| Height | 52 mm |
| Operating Pressure Range | 8–18 bar |
| Temperature Range | -40°C to +150°C |
Compatibility
This genuine ZF part is primarily designed for the WG 190 Series transmission, but it also cross-fits select models in the WG180 and WG200 families due to shared hydraulic architecture. It is commonly used in municipal buses, heavy-duty trucks, and off-highway equipment. Always verify the 4657201170: HOUSING REAR PART and 4657298102: HOUSING REAR SECTION for correct bore alignment before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear sets and valve body |
| 4657201166 | HOUS.FRONT SECT | Front section housing torque converter and pump |
| 4657201170 | HOUSING REAR PART | Rear housing supporting output shaft and PTO |
| 4657298102 | HOUSING REAR SECTION | Intermediate rear housing for planetary carrier |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | M10 fastener securing valve body to housing |
| 4656301148 | FIXING PLATE | Retainer plate for shift solenoid assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M8 bolt for housing rear section attachment |
Frequently Asked Questions
Q: How do I confirm the 6009.092.751 is the correct part for my WG190 transmission?
A: Cross-reference your transmission serial number with the OEM parts catalog. This part is specific to WG190 models built after 2012 with a 6-bolt valve body pattern. Visually inspect the 4657201170: HOUSING REAR PART for the matching casting code.
Q: Can I replace this part without removing the entire transmission?
A: Yes, the 6009.092.751 is accessible after dropping the transmission oil pan and removing the valve body. However, you must also replace the 4657301032: SCREEN SHEET and all cap screws (0636100801 and 0636100803) to prevent contamination.
Q: What torque specification should I use for the mounting bolts?
A: Tighten the M10 cap screws (0636100801) to 45 Nm and the M8 cap screws (0636100803) to 25 Nm. Always use a new 4656301148: FIXING PLATE to prevent bolt loosening.
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