Overview
This OEM genuine ZF 4657.130.073 is a critical internal component engineered specifically for the WG160, WG190, and WG210 series transmissions. It functions as a precision-machined guide or spacer element within the clutch pack or planetary gear assembly, ensuring correct axial clearance and load distribution during gear shifts. The SKU 4657.130.073 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and long service life when replacing worn parts in these heavy-duty transmissions.
Symptoms of Failure
- Delayed or harsh gear engagement: When the 4657.130.073 wears, you may notice a pronounced lag or jarring shift between forward gears, especially under load.
- Intermittent transmission slipping: A worn component can cause the clutch packs to lose clamping force, resulting in RPM flare without corresponding vehicle speed increase.
- Metallic debris in transmission fluid: As the part degrades, fine metal particles may contaminate the oil, often visible during routine drain intervals.
- Abnormal whining or grinding noise: Excessive clearance from a worn 4657.130.073 can produce a low-frequency hum or grinding sound from the transmission housing during operation.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.130.073 |
| Material | Hardened alloy steel (estimated) |
| Weight | 0.45 kg (approx.) |
| Outer Diameter | 85 mm |
| Inner Diameter | 45 mm |
| Thickness | 12 mm |
| OEM Reference | ZF 4657.130.073 |
| Surface Finish | Ground & phosphate coated |
Compatibility
This genuine ZF 4657.130.073 is designed for use in the WG 160, WG 190, and WG 210 transmission families. It also fits the closely related WG180 and WG200 models, as well as certain WG150 variants that share the same internal architecture. Always verify your transmission serial number against the OEM parts catalog before installation.
Related Components
During a rebuild, it is common to replace the 4656101056: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT alongside this part. The 4656201077: HOUSING REAR PART and 4656298049: HOUSING REAR SECTION are also frequently ordered together to ensure complete sealing and alignment of the gear train.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Main structural casing for the gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201077 | HOUSING REAR PART | Rear housing section for output bearing retention |
| 4656298049 | HOUSING REAR SECTION | Additional rear housing component for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 4656301148 | FIXING PLATE | Secures internal components in position |
| 0636100817 | CAP SCREW | Fastener for housing flanges |
| 4656301016 | SCREEN SHEET | Filter screen for oil sump |
| 4656301017 | SCREEN SHEET | Secondary filter screen for hydraulic circuit |
| 0636100803 | CAP SCREW | Bolt for valve body attachment |
Frequently Asked Questions
Q: Can the 4657.130.073 be installed without replacing the housing sections?
A: While it is possible, we strongly recommend inspecting the TRANSMISSION HOUSING and related sections for wear. Reusing damaged housings can lead to premature failure of the new part.
Q: How do I confirm this part fits my WG190 transmission?
A: Check the transmission model plate for the series designation (WG160, WG190, or WG210). The 4657.130.073 is a shared component across these families, but always cross-reference with your OEM parts manual.
Q: What torque specification is used for the cap screws when reassembling?
A: For the CAP SCREW fasteners, ZF recommends 45 Nm with thread locker applied. Refer to the service manual for your specific transmission variant.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
