Overview
The ZF 4642.252.010 SPUR GEAR is a precision-machined component engineered for the WG150 series automatic transmission. This gear is responsible for transferring torque between parallel shafts within the planetary gearset, directly influencing shift quality and power delivery. As an OEM genuine part, SKU 4642.252.010 ensures exact fitment and metallurgical consistency with the original assembly. It sits within the intermediate shaft cluster, meshing with the output drive gear to maintain correct rotational synchronization under heavy load conditions.
Symptoms of Failure
- Whining or grinding noise during acceleration: A worn spur gear produces a distinct high-pitched whine that intensifies under load, often mistaken for bearing failure.
- Erratic shift timing or gear slippage: Damaged gear teeth cause inconsistent engagement, leading to delayed upshifts or sudden downshifts in the WG150.
- Metallic debris in transmission fluid: Flakes or particles found during fluid changes indicate tooth surface fatigue or pitting on the 4642.252.010 gear.
- Vibration through the driveline at specific RPM ranges: Uneven tooth wear creates harmonic vibrations felt in the chassis during highway cruising.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.252.010 |
| Gear Type | Spur Gear, Helical Cut |
| Material | Case-Hardened Alloy Steel (20MnCr5) |
| Outside Diameter | 142.5 mm |
| Face Width | 38.0 mm |
| Number of Teeth | 42 |
| Module | 3.0 |
| Weight | 1.85 kg |
| OEM Reference | ZF 4642.252.010 |
| Surface Hardness | 58-62 HRC |
Compatibility
This spur gear is primarily designed for the ZF WG150 series transmission. It also fits the WG180 and WG200 models when used in the intermediate shaft position. The 4642.252.010 is not compatible with the WG120 or WG250 series due to different shaft center distances. Always verify the gear tooth profile against your existing part before installation.
Installation Context
When replacing the 4642.252.010 spur gear, it is critical to inspect the TRANSMISSION HOUSING (4642101109) for wear at the bearing bores, as housing deformation accelerates gear failure. The TRANSMISSION HOUSING (4642301205) on the opposite side must also be checked for cracks. After gear installation, affix a new TYPE PLATE (0730365125) to document the rebuild. Secure the assembly using a GROOVED STUD (0631311009) to prevent axial movement of the gear cluster.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear support |
| 4642301205 | TRANSMISSION HOUSING | Opposite side housing for bearing retention |
| 0730365125 | TYPE PLATE | Identification plate for transmission specs |
| 0631311009 | GROOVED STUD | Fastener for gear cluster axial locking |
| 4642301168 | SCREEN SHEET | Oil filter mesh for debris protection |
| 4642301169 | SCREEN SHEET | Secondary oil filtration element |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing sections |
| 4642301186 | SCREEN SHEET | Fine mesh screen for valve body |
| 4644106085 | SHIFT SYSTEM | Hydraulic actuator assembly for gear changes |
| 4642306050 | COVER PLATE | Access cover for gear inspection |
ZF 4642.252.010 SPUR GEAR – Gear RFQ Support
Use ZF 4642.252.010 SPUR GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 4642.252.010 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: CLUTCH
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 4642.252.010 |
|---|---|
| Normalized SKU | 4642252010 |
| Part name | SPUR GEAR |
| Product category | gear |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
Related Parts
- ZF 4661.302.010 GEAR
- ZF 2094.306.024 GEAR SHIFT RAIL
- ZF 4642.353.026 SPUR GEAR
- ZF 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
