Overview
The ZF 4657.304.029 OUTPUT SHAFT is a critical rotating component engineered specifically for the WG190 and WG210 series transmissions. This OEM genuine part transmits torque from the planetary gearset to the driveline flange, ensuring smooth power delivery under heavy-duty industrial loads. Machined from high-strength alloy steel and precision-ground to exacting tolerances, the output shaft (SKU: 4657.304.029) interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain concentric alignment. When paired with the HOUSING REAR PART, this shaft forms the backbone of the transmission’s final drive assembly, secured by a CYLINDRICAL PIN for rotational stability.
Symptoms of Failure
- Output flange oil seepage – Worn splines or bearing journals on the 4657.304.029 shaft allow transmission fluid to escape past the seal, leaving visible drips under the vehicle.
- Driveline vibration under load – A fatigued output shaft develops microscopic cracks or runout, causing rhythmic shaking during acceleration or hill climbs.
- Intermittent gear disengagement – Excessive wear on the shaft’s spline teeth prevents the output flange from locking fully, leading to sudden loss of drive power.
- Metallic grinding noise from the rear housing – A broken or spalled shaft bearing surface generates a distinct scraping sound, often mistaken for differential failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.304.029 |
| Overall Length | 412 mm (estimated) |
| Spline Diameter | 48 mm (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (estimated) |
| OEM Reference | ZF 4657.304.029 |
| Heat Treatment | Carburized & quenched to HRC 58-62 |
Compatibility
This output shaft is a direct-fit OEM replacement for ZF WG190 and WG210 series transmissions. Based on its spline count and bearing journal dimensions, it is also compatible with the WG180 and WG200 variants when used with the correct output flange. Always verify the shaft’s shoulder height against your existing unit; the 4657.304.029 is designed for 6-bolt flange configurations found in on-highway trucks and heavy equipment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Encloses and supports the gear train |
| 4657201028 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201013 | HOUSING REAR PART | Rear housing supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Aligns housing halves precisely |
| 0636100801 | CAP SCREW | Fastens output flange to shaft |
| 4656301148 | FIXING PLATE | Locks bearing in position |
| 4657301034 | SCREEN SHEET | Magnetic debris screen for oil sump |
| 4657301035 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 0636100803 | CAP SCREW | Secures rear housing cover |
| 4681301040 | OIL FEED.HOUSG. | Directs lubrication to output bearing |
Frequently Asked Questions
Q: Can the 4657.304.029 output shaft be used in a ZF WG180 transmission?
A: Yes, the shaft is mechanically interchangeable with WG180 and WG200 models, provided the output flange and bearing retainers match. We recommend comparing the spline length and shoulder height to your original part before installation.
Q: What torque specification should I use for the output flange cap screws?
A: For the associated CAP SCREW (part 0636100801), ZF specifies 120 Nm ± 10 Nm with thread locker applied. Always replace the screws when installing a new shaft.
Q: How do I confirm the shaft is genuine OEM and not an aftermarket copy?
A: Genuine ZF 4657.304.029 shafts have a laser-etched part number on the flange face and a distinct case-hardened finish. Counterfeit shafts often lack the precise spline chamfer and may fail prematurely under load.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 4657.304.029 OUTPUT SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.304.029 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 4657.304.029 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023001
- Documentation reference: 4657023004
- Documentation reference: 4657023100
- Documentation reference: 4657024145
- Illustration section: DIFFERENTIAL
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 | 4657.304.029 |
|---|---|
| Normalized SKU | 4657304029 |
| 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 4646.303.100 INPUT SHAFT
- ZF 4657.303.043 OUTPUT SHAFT
