Overview
The ZF 4657.303.051 OUTPUT SHAFT is a precision-machined component engineered for the WG190 and WG210 series transmissions. This OEM genuine part serves as the primary torque-transfer interface between the transmission’s planetary gearset and the driveline, ensuring smooth power delivery under heavy-duty industrial loads. Positioned at the rear of the main gear case, the output shaft interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain concentric alignment. The SKU 4657.303.051 is manufactured to ZF’s original tolerances, making it a direct replacement for worn or damaged units in construction, mining, and agricultural machinery.
Symptoms of Failure
- Oil leaks at the rear seal area: A worn output shaft bearing journal or seal surface allows transmission fluid to escape, often visible as drips beneath the vehicle or equipment.
- Vibration or driveline shudder during acceleration: Excessive radial play in the output shaft causes misalignment with the yoke, leading to noticeable shaking at low speeds.
- Gear slipping or delayed engagement: When the output shaft splines wear, torque transfer becomes intermittent, causing the transmission to slip under load or hesitate when shifting into forward or reverse.
- Metallic grinding noise from the rear housing: A fractured or pitted output shaft can contact the HOUSING REAR PART, producing a distinct grinding sound that worsens with speed.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.303.051 |
| Overall Length | 385 mm (estimated) |
| Shaft Diameter (bearing seat) | 55 mm (estimated) |
| Spline Count | 24 involute splines (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.8 kg (10.6 lbs) |
| OEM Reference | ZF 4657.303.051 |
| Surface Treatment | Black oxide / phosphate coating |
Compatibility
This output shaft is designed for the ZF WG190 and WG210 series transmissions, which are commonly found in wheel loaders, forklifts, and mobile cranes. Based on the shaft’s spline geometry and bearing dimensions, it is also compatible with the WG180 and WG200 models when used with the correct CYLINDRICAL PIN and CAP SCREW for mounting. For installations requiring a full rear housing replacement, the HOUSING REAR SECTION must be inspected for wear simultaneously.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101088 | TRANSMISSION HOUSING | Encloses the gear train and supports the output shaft bearing |
| 4657201183 | HOUS.FRONT SECT | Front section of the transmission case, aligns input shaft |
| 4657201184 | HOUSING REAR PART | Rear housing half that seals the output shaft area |
| 4657298111 | HOUSING REAR SECTION | Complete rear housing assembly for WG210 models |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing-to-shaft positioning |
| 0636100801 | CAP SCREW | Fastener for securing the output shaft flange |
| 4681301015 | FIXING PLATE | Locks the output shaft nut in position |
| 4681301016 | SCREEN SHEET | Fine mesh filter for the output shaft oil passage |
| 4681301017 | SCREEN SHEET | Secondary filter screen for high-pressure circuits |
| 0636100803 | CAP SCREW | M10 bolt for housing-to-shaft retention |
Frequently Asked Questions
Q: How do I know if the 4657.303.051 output shaft is compatible with my WG190 transmission?
A: Check the serial number plate on your transmission. The WG190 and WG210 series share the same output shaft spline pattern and bearing dimensions. If your unit uses a different rear housing, verify that the HOUSING REAR SECTION matches your model.
Q: Can I replace just the output shaft without removing the transmission?
A: In most applications, the output shaft can be accessed by removing the rear housing cover and the yoke. However, we recommend inspecting the HOUSING REAR PART for cracks or scoring at the same time to prevent future failures.
Q: What torque specification should I use for the output shaft nut?
A: ZF specifies 250 Nm (184 ft-lbs) for the main output shaft nut, applied with thread locker. Always use a new FIXING PLATE to lock the nut after torquing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 4657.303.051 OUTPUT SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.303.051 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 4657.303.051 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: 4657054601
- Documentation reference: 4657054602
- Documentation reference: 4657054603
- Illustration section: OUTPUT
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 | 4657.303.051 |
|---|---|
| Normalized SKU | 4657303051 |
| Part name | OUTPUT 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.
Related Parts
- ZF 4646.302.141 INPUT SHAFT
- ZF 4646.323.010 OUTPUT SHAFT
- ZF 4646.304.069 OUTPUT SHAFT
- ZF 4646.304.065 QUILL SHAFT
- ZF 4657.354.010 INPUT SHAFT
