Overview
The ZF 4657.303.042 OUTPUT SHAFT is a critical torque-transmitting component engineered specifically for the WG190 series and related heavy-duty transmissions. This OEM genuine part serves as the final rotational interface between the transmission’s planetary gearset and the driveline, converting internal gear reduction into usable output power. Positioned at the rear of the main housing assembly, the output shaft must withstand extreme torsional loads and continuous thermal cycling. The SKU 4657.303.042 is precision-machined to exact ZF tolerances, ensuring proper alignment with the TRANSMISSION HOUSING and the HOUS.FRONT SECT for reliable long-term operation.
Symptoms of Failure
- Output flange oil seepage: Worn splines or a fatigued shaft surface can cause transmission fluid to leak past the rear seal, leaving visible drips under the vehicle.
- Driveline vibration under load: A bent or cracked output shaft creates harmonic imbalance, felt as a persistent shudder during acceleration or hill climbing.
- Intermittent gear slipping: Excessive axial play in the output shaft allows the planetary carrier to shift, resulting in momentary loss of torque transfer.
- Metallic debris in the oil pan: Flaking or spalling on the shaft’s bearing journals introduces ferrous particles into the lubrication circuit, often detected during routine filter changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.303.042 |
| Overall Length | 385 mm (estimated) |
| Shaft Diameter (bearing journals) | 55 mm (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (estimated) |
| OEM Reference | ZF 4657.303.042 |
| Surface Finish | Ground and polished, 0.4 µm Ra |
| Heat Treatment | Carburized & tempered to 58–62 HRC |
Compatibility
This output shaft is designed for the ZF WG190 series and is also compatible with the BP 210, BP 230, WG 210, and WG 230 transmission families. It can be retrofitted into earlier WG180 and WG200 models when used with the correct HOUSING REAR PART and CYLINDRICAL PIN for alignment. Always verify the spline count and pilot bore dimensions against your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Encloses and supports all internal gear sets and shafts |
| 4657201027 | HOUS.FRONT SECT | Front section of the main case, houses input shaft bearings |
| 4657201020 | HOUSING REAR PART | Rear case section, supports output shaft and rear seal |
| 0631306792 | CYLINDRICAL PIN | Precision alignment dowel between housing sections |
| 0636100801 | CAP SCREW | M10 fastener for securing housing flanges |
| 4656301148 | FIXING PLATE | Locks output shaft bearing in axial position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for pump suction |
| 0636100803 | CAP SCREW | M12 fastener for output flange retention |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to output shaft bearings |
Frequently Asked Questions
Q: Can the 4657.303.042 output shaft be used in a WG210 transmission without modifications?
A: Yes, the shaft is dimensionally identical across the WG190, WG210, and WG230 series. However, you must also replace the rear seal and verify that the HOUSING REAR PART matches the updated bearing bore profile.
Q: How do I confirm this is a genuine OEM part and not an aftermarket copy?
A: Genuine ZF shafts have a laser-etched part number 4657.303.042 on the flange face, along with a batch code. The surface finish should be uniformly ground without tool marks.
Q: What torque specification is required for the output flange nut?
A: ZF recommends 450 Nm for the M30 flange nut, applied with a thread-locking compound. Always use a new CAP SCREW for the retaining plate to prevent loosening.
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ZF 4657.303.042 OUTPUT SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.303.042 OUTPUT 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 4657.303.042 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023002
- Documentation reference: 4657023104
- Documentation reference: 4657023105
- Documentation reference: 4657024014
- Illustration section: OUTPUT
- Illustration section: AXLE DISCONNECTION
Cross Reference Support
- Cross-reference record available for RFQ review.
Specification Snapshot
| ZF part number | 4657.303.042 |
|---|---|
| Normalized SKU | 4657303042 |
| Part name | OUTPUT 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.
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- ZF 4657.371.041 SHAFT
