Overview
This genuine OEM ZF shaft, part number 4657.373.023, is a critical rotating component engineered for the WG190 and WG210 series transmissions. It serves as the primary torque transfer element within the planetary gear set, connecting the turbine shaft to the sun gear assembly. The shaft ensures precise alignment and smooth power delivery under high-load conditions. As a direct OEM replacement, the 4657.373.023 shaft is manufactured to exacting tolerances to maintain the integrity of the entire drivetrain. It is frequently installed alongside the 4657101033: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT to form a robust, leak-free assembly.
Symptoms of Failure
When the ZF 4657.373.023 shaft begins to wear, operators will notice distinct performance degradation. Common failure indicators include:
- Transmission gear slipping under load: Worn splines on the shaft cause intermittent engagement, leading to power loss during acceleration.
- Metallic debris in the oil pan: Flaking or pitting on the shaft surface generates fine metal particles that contaminate the hydraulic fluid.
- Abnormal whining or grinding noise: Bearing surface wear on the shaft produces a high-pitched noise that intensifies with engine RPM.
- Oil leaks near the bell housing: A worn shaft seal surface allows transmission fluid to escape, often mistaken for a simple gasket failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Overall Length | 285 mm |
| Shaft Diameter (bearing journal) | 35 mm |
| Spline Count | 24-tooth involute |
| Material | Case-hardened alloy steel (16MnCr5) |
| Weight | 1.8 kg |
| OEM Reference | ZF 4657.373.023 |
Compatibility
This shaft is specifically designed for the ZF WG190 and WG210 series transmissions. It is also compatible with the closely related WG180 and WG200 models that share the same planetary gear architecture. The part interfaces directly with the 4657201012: HOUSING REAR PART and is secured using a 0631306792: CYLINDRICAL PIN for precise rotational alignment. Always verify your transmission model code before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing the pump and converter |
| 4657201012 | HOUSING REAR PART | Rear casing supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Retainer for shaft axial positioning |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | Bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Lubrication supply channel housing |
Frequently Asked Questions
Q: Can the 4657.373.023 shaft be reused after a transmission rebuild?
A: We strongly recommend replacing this shaft during a rebuild. Even minor wear on the splines or bearing surfaces can accelerate failure of the new clutch packs and seals.
Q: Does this shaft fit the ZF WG210 model with a 6-speed configuration?
A: Yes, the 4657.373.023 shaft is a direct fit for all WG210 variants, including 5-speed and 6-speed versions, as long as the transmission uses the standard planetary gear set.
Q: What torque specification is required for the retaining nut on this shaft?
A: The factory specification is 180 Nm for the main shaft nut. Always use a new 0636100801: CAP SCREW when reinstalling to ensure proper clamping force.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 4657.373.023 SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.373.023 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 4657.373.023 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023003
- Documentation reference: 4657024048
- Documentation reference: 4657053001
- Documentation reference: 4657053003
- 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 | 4657.373.023 |
|---|---|
| Normalized SKU | 4657373023 |
| Part name | SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: diagram. 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 4657.303.042 OUTPUT SHAFT
- ZF 4646.302.106 INPUT SHAFT
- ZF 4657.302.006 TURBINE SHAFT
- ZF 4646.303.100 INPUT SHAFT
- ZF 4657.303.043 OUTPUT SHAFT
