Overview
This OEM genuine ZF 6009.085.103 component is a critical internal seal and guide element specifically engineered for the WG 190 Series transmission. Positioned within the valve body and hydraulic control assembly, this part ensures precise oil flow regulation and maintains proper pressure across the clutch packs. The SKU 6009.085.103 acts as a wear-resistant interface that prevents cross-contamination between hydraulic circuits, directly influencing shift quality and torque converter lockup behavior. When installed alongside the 4657101033: TRANSMISSION HOUSING, it forms a sealed boundary that protects internal components from debris ingress.
Symptoms of Failure
- Delayed or harsh shifting – When the 6009.085.103 wears, hydraulic pressure bleeds past the seal, causing hesitation between 2nd and 3rd gear or abrupt engagement during cold starts.
- Transmission fluid seepage near the valve body – A common long-tail search query is “ZF WG190 oil leak around control unit,” which often traces back to a degraded 6009.085.103 gasket surface.
- Erratic torque converter lockup – Drivers may notice shuddering at highway speeds as the worn part fails to maintain consistent clutch apply pressure.
- Intermittent neutral drops – Sudden loss of drive in forward gears, especially after prolonged operation, indicates this seal has lost its dimensional integrity.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 6009.085.103 |
| Material | Nitrile rubber with PTFE overlay |
| Outer Diameter | 38.5 mm |
| Inner Diameter | 22.0 mm |
| Height / Thickness | 8.2 mm |
| Weight | 0.014 kg |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 6009.085.103 |
Compatibility
This genuine ZF 6009.085.103 seal is designed primarily for the WG 190 Series transmission family, but it also cross-references with select models in the WG180 and WG200 ranges that share the same valve body architecture. It is a direct replacement for units built between 2008 and 2020. For proper installation, ensure the mating surface on the 4657201027: HOUS.FRONT SECT is free of burrs, and verify alignment with the 4657201012: HOUSING REAR PART to avoid premature wear. The 0631306792: CYLINDRICAL PIN must also be inspected during service, as it locates the seal bore within the main casing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing that encloses all rotating assemblies |
| 4657201027 | HOUS.FRONT SECT | Forward section housing the torque converter and pump |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft and planetary gears |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-valve body positioning |
| 0636100801 | CAP SCREW | Fastener securing the valve body cover plate |
| 4656301148 | FIXING PLATE | Retainer for the oil filter and screen assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter protecting the hydraulic control circuit |
| 4657301033 | SCREEN SHEET | Secondary coarse filter for high-flow return lines |
| 0636100803 | CAP SCREW | M8 bolt for oil pan and filter housing attachment |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil distribution manifold to clutch packs |
Frequently Asked Questions
Q: Can the ZF 6009.085.103 be reused after a transmission overhaul?
A: No. This is a single-use seal that deforms during installation. Always replace it with a new OEM part to guarantee proper hydraulic sealing and avoid repeat labor costs.
Q: Does this part require special tools for installation?
A: Yes. A seal driver set sized to 38.5 mm outer diameter is recommended to press the 6009.085.103 evenly into its bore without damaging the PTFE lip. Never use a hammer directly on the seal.
Q: How does this seal interact with the WG190’s shift solenoid?
A: The 6009.085.103 isolates the solenoid feed circuit from the exhaust ports. If it fails, solenoid response times increase, triggering diagnostic trouble codes P0741 or P0751 in most electronic control units.
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Phone: +86 158 2286 3467 |
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