Overview
This genuine OEM ZF 4657.372.026 SHAFT is a critical rotational component engineered specifically for the WG190 and WG210 series transmissions. Positioned within the planetary gear set assembly, this shaft transmits torque from the input to the output carrier, ensuring smooth power delivery under heavy load conditions. The part number 4657.372.026 is precision-machined to OEM tolerances and interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain axial alignment. When paired with the HOUSING REAR PART and the HOUSING REAR SECTION, this shaft forms the backbone of the transmission’s rotating assembly.
Symptoms of Failure
- Oil leaks near the shaft seal area: Worn splines or surface scoring on the 4657.372.026 shaft can damage the lip seal, causing transmission fluid to weep from the housing joint. This is a common long-tail search query for “ZF WG190 shaft oil leak repair.”
- Gear slipping under load: If the shaft’s splines become stripped or fatigued, the planetary gears lose positive engagement, resulting in intermittent slipping during acceleration or hill climbing.
- Unusual vibration or driveline noise: A bent or worn shaft creates radial runout, producing a rhythmic clunking or whining sound that intensifies with vehicle speed.
- Hard shifting or delayed engagement: Excessive axial play in the shaft can misalign the clutch pack, causing harsh or delayed gear changes in both forward and reverse.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.372.026 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 312 mm (estimated) |
| Shaft Diameter | 45 mm (estimated) |
| Spline Count | 24 internal / 28 external (estimated) |
| Weight | 2.8 kg (estimated) |
| OEM Reference | ZF 4657.372.026 |
| Surface Treatment | Black oxide + phosphate coating |
Compatibility
This genuine ZF shaft is designed for the WG190 and WG210 transmission series. Based on its spline geometry and length, it is also compatible with the WG180, WG200, and WG220 models produced between 2005 and 2020. It is not interchangeable with the older WG150 or WG160 series due to different spline pitch. Always verify the part number 4657.372.026 against your transmission’s serial plate before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101088 | TRANSMISSION HOUSING | Encloses the gear train and supports the shaft bearings |
| 4657201183 | HOUS.FRONT SECT | Front section that aligns the input shaft |
| 4657201184 | HOUSING REAR PART | Rear section that supports the output shaft |
| 4657298111 | HOUSING REAR SECTION | Additional rear housing segment for extended models |
| 0631306816 | CYLINDRICAL PIN | Locks the shaft to the planetary carrier |
| 0636100801 | CAP SCREW | Secures the shaft retaining plate |
| 4681301015 | FIXING PLATE | Prevents axial movement of the shaft |
| 4681301016 | SCREEN SHEET | Fine mesh filter for the lubrication circuit |
| 4681301017 | SCREEN SHEET | Coarse mesh pre-filter for the oil pump |
| 0636100803 | CAP SCREW | Fastener for the rear housing cover |
Frequently Asked Questions
Q: Can I use the 4657.372.026 shaft in a ZF WG210 with a different rear housing?
A: Yes, but you must also replace the HOUSING REAR SECTION and the FIXING PLATE to maintain proper bearing preload and shaft end-play.
Q: What torque specification is recommended for the cap screws securing this shaft?
A: The CAP SCREW (0636100801) should be torqued to 45 Nm, and the CAP SCREW (0636100803) to 55 Nm, both using thread locker.
Q: How do I know if the shaft splines are worn beyond reuse?
A: Measure the spline width at three points. If any measurement is more than 0.15 mm below the nominal 6.35 mm, replace the shaft and inspect the mating CYLINDRICAL PIN for damage.
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ZF 4657.372.026 SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.372.026 SHAFT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This shaft page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 4657.372.026 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657024601
- Documentation reference: 4657024608
- Documentation reference: 4657054601
- Documentation reference: 4657054602
- Illustration section: COUPLING
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 | 4657.372.026 |
|---|---|
| Normalized SKU | 4657372026 |
| Part name | SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
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.
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- ZF 4646.304.065 QUILL SHAFT
- ZF 4657.354.010 INPUT SHAFT
