Overview
The ZF 4657.304.040 OUTPUT SHAFT is a critical driveline component engineered specifically for the WG 190 series transmission. This OEM genuine part transmits rotational torque from the planetary gear set to the vehicle’s differential or final drive, ensuring smooth power delivery under heavy load conditions. Machined from high-strength alloy steel and precision-ground to exacting tolerances, the output shaft (SKU 4657.304.040) interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain concentric alignment and prevent axial play. As a wear item subject to constant torsional stress, replacing this shaft with the genuine ZF part restores factory-specified clearance and eliminates driveline vibration.
Symptoms of Failure
- Oil leaks at the rear seal interface: A worn output shaft bearing journal or seal surface allows transmission fluid to weep past the rear housing, leaving visible drips under the vehicle.
- Gear slipping under load: Excessive spline wear on the 4657.304.040 shaft causes intermittent engagement loss, particularly during uphill climbs or when towing heavy trailers.
- Audible clunking or vibration: A damaged output shaft creates rotational imbalance, producing a rhythmic knocking sound that intensifies with vehicle speed.
- Metal debris in transmission fluid: Flaking or spalling on the shaft’s hardened surface introduces ferrous particles into the oil, often detected during routine filter inspection.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.304.040 |
| Overall Length | 412 mm (estimated) |
| Shaft Diameter (bearing journal) | 55 mm |
| Spline Count | 24 involute splines |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.8 kg (10.6 lbs) |
| OEM Reference | ZF 4657.304.040 |
| Surface Treatment | Black oxide corrosion protection |
Compatibility
This output shaft is designed for the ZF WG 190 series transmission. Based on its spline geometry and bearing dimensions, it is also compatible with the WG 180 and WG 200 models that share the same rear housing architecture. The shaft integrates with the HOUSING REAR PART and the HOUSING REAR SECTION to complete the driveline assembly. Always verify your transmission’s serial number against ZF’s parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Encloses gear train and supports shaft bearings |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft alignment |
| 4657201168 | HOUSING REAR PART | Rear housing section supporting output shaft |
| 4657298101 | HOUSING REAR SECTION | Alternate rear housing casting variant |
| 0631306816 | CYLINDRICAL PIN | Locating pin for housing alignment |
| 0636100801 | CAP SCREW | Fastener for housing-to-shaft retention |
| 4656301148 | FIXING PLATE | Locks output shaft axial position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary mesh filter (alternate size) |
| 0636100803 | CAP SCREW | Mounting bolt for rear housing cover |
Frequently Asked Questions
Q: How do I confirm the 4657.304.040 output shaft fits my WG190 transmission?
A: Check the transmission model tag located on the side of the main housing. The WG190 series uses a 24-spline output shaft with a 55 mm bearing journal. If your unit has a different spline count, you may need the WG180 or WG200 variant.
Q: Can I reuse the old fixing plate and cap screws when installing this shaft?
A: ZF recommends replacing the FIXING PLATE and CAP SCREW during output shaft replacement. These fasteners experience torque-to-yield loading and may lose clamping force after removal.
Q: What causes premature output shaft failure in WG190 transmissions?
A: The most common root cause is a worn HOUSING REAR PART bearing bore, which allows the shaft to wobble and accelerate spline wear. Always inspect the housing bore for ovality before installing a new shaft.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 4657.304.040 OUTPUT SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.304.040 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 4657.304.040 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657024121
- Documentation reference available for RFQ review
- Illustration section: AXLE DISCONNECTION
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 | 4657.304.040 |
|---|---|
| Normalized SKU | 4657304040 |
| 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
