Overview
The ZF 6057.018.501 is a critical OEM genuine component engineered specifically for the WG 115 Series transmission. This part functions as a precision-machined guide or support element within the hydraulic control assembly, ensuring accurate oil flow and pressure regulation during gear shifts. As an integral part of the valve body system, the 6057.018.501 works in concert with the TRANSMISSION HOUSING to maintain structural integrity and fluid channel alignment. Without this part, the transmission cannot maintain consistent shift timing or hydraulic balance.
Symptoms of Failure
- Erratic or delayed gear engagement — When the 6057.018.501 wears, hydraulic pressure fluctuates, causing hesitation when shifting from neutral to drive or reverse. This is a common “WG115 transmission shifting problems” search query.
- Oil seepage around the valve body area — A worn part creates micro-gaps, leading to “ZF transmission oil leak at housing” issues. You may notice fluid pooling near the HOUS.FRONT SECT interface.
- Intermittent slipping under load — As the part degrades, the transmission may momentarily lose torque during uphill climbs or heavy towing, a classic “ZF WG115 slipping under acceleration” symptom.
- Harsh or clunking shifts — Sudden pressure spikes from a failing 6057.018.501 cause jarring gear changes, often misdiagnosed as a solenoid issue.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 6057.018.501 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.45 kg (1.0 lb) |
| Length | 78 mm |
| Outer Diameter | 32 mm |
| Bore Diameter | 12 mm |
| OEM Reference | ZF 6057.018.501 (Genuine) |
| Compatible Series | WG 115 |
Compatibility
This part is designed for the ZF WG 115 Series transmission family. While the WG115 is the primary application, the 6057.018.501 may also be found in select WG180 and WG200 variants that share the same valve body architecture. It is not compatible with older WG 80 or WG 120 models without verification of the HOUSING REAR PART configuration. Always cross-reference your transmission serial number with the HOUSING REAR SECTION to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101057 | TRANSMISSION HOUSING | Main structural casing for gear and valve assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing the input shaft and pump |
| 4656201078 | HOUSING REAR PART | Rear section supporting output shaft bearings |
| 4656298050 | HOUSING REAR SECTION | Extended rear housing for planetary gear set |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Secures valve body components in position |
| 0636100817 | CAP SCREW | Fastener for housing-to-valve body attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4656301017 | SCREEN SHEET | Secondary filter for high-pressure circuits |
| 0636100803 | CAP SCREW | Bolt for securing screen sheet assembly |
Frequently Asked Questions
Q: Can the 6057.018.501 be replaced without removing the transmission?
Yes, in most WG115 applications this part is accessible after dropping the transmission oil pan and removing the valve body. However, you must also inspect the HOUS.FRONT SECT for wear at the mating surface.
Q: How often should this part be inspected?
During every major transmission overhaul (typically every 200,000 km or 5,000 operating hours). If you notice oil seepage near the TRANSMISSION HOUSING, inspect the 6057.018.501 immediately.
Q: Is this part interchangeable with aftermarket versions?
We strongly recommend OEM genuine only. Aftermarket copies often have incorrect bore tolerances, leading to premature failure of the HOUSING REAR SECTION seals.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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