Overview
The ZF 6009.092.345 is a precision-engineered OEM genuine component specifically designed for the WG 115 Series transmission. This part functions as a critical sealing and alignment element within the hydraulic control system, ensuring consistent oil pressure regulation and smooth gear engagement. The SKU 6009.092.345 sits directly in the valve body assembly, where it interfaces with the main control bore to prevent cross-leakage between circuits. As a factory-spec replacement, it restores the transmission’s ability to maintain proper clutch pack application pressure, directly impacting shift quality and overall driveline efficiency.
Symptoms of Failure
- Erratic shifting or delayed engagement: When the 6009.092.345 wears, internal leakage causes inconsistent hydraulic pressure, leading to harsh or delayed gear changes, especially during cold starts.
- Transmission fluid seepage around the valve body: A worn sealing surface allows ATF to bypass the intended circuit, resulting in visible oil drips on the transmission pan or bell housing area.
- Intermittent gear slip under load: Degraded material integrity reduces clamping force on clutch packs, causing the transmission to momentarily lose power transfer during acceleration or hill climbing.
- Erratic neutral-to-drive engagement: Drivers may notice a pronounced lag or “bump” when shifting from park into drive, indicating the part can no longer hold base oil pressure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 6009.092.345 |
| Material | Hardened alloy steel with nitrile sealing surface |
| Outer Diameter | 38.5 mm |
| Inner Diameter | 22.0 mm |
| Height | 14.2 mm |
| Weight | 0.085 kg |
| OEM Reference | ZF 6009.092.345 (Genuine) |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This OEM genuine part is engineered for the ZF WG 115 Series transmission, commonly found in medium-duty commercial vehicles and off-highway equipment. While the WG 115 is the primary application, the 6009.092.345 also shares dimensional compatibility with select variants of the WG 180 and WG 200 series, specifically those using the same valve body architecture. It is not interchangeable with older WG 110 or WG 130 models without verifying the control bore diameter. For exact fitment, always cross-reference your transmission serial number against the ZF parts catalog.
Related Components
When replacing the 6009.092.345, it is recommended to inspect and replace adjacent sealing surfaces and housings to prevent repeat failure. The following parts are installed in the same assembly:
| Part Number | Name | Function |
|---|---|---|
| 4656101037 | TRANSMISSION HOUSING | Main structural casing that supports the valve body and gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing that aligns the input shaft and pump assembly |
| 4656201035 | HOUSING REAR PART | Rear housing section that encloses the output shaft and planetary gears |
| 4472239178 | HOUSING REAR PART | Alternate rear housing variant for specific WG 115 configurations |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-valve body positioning |
| 4656301148 | FIXING PLATE | Retaining plate that secures the valve body components |
| 0636100817 | CAP SCREW | High-tensile fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter protecting the hydraulic circuit from debris |
| 4656301017 | SCREEN SHEET | Alternate mesh filter for high-flow applications |
| 0636100803 | CAP SCREW | Lower-profile fastener for confined spaces |
Frequently Asked Questions
Q: Can I install the 6009.092.345 without replacing the transmission housing?
A: Yes, but only if the housing bores are free of scoring or corrosion. We strongly recommend inspecting the TRANSMISSION HOUSING for wear, as a damaged bore will quickly ruin the new part.
Q: How do I know if my WG 115 uses this specific SKU?
A: Check the stamped part number on the valve body side plate. If the original part is missing, measure the bore depth and diameter—the 6009.092.345 requires a 38.5 mm bore. Always verify against the HOUS.FRONT SECT casting number for compatibility.
Q: What torque should I use for the cap screws when reinstalling?
A: For the CAP SCREW fasteners, apply 22 N·m (16 ft-lb) in a crosswise pattern. Over-torquing can distort the sealing face of the 6009.092.345.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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