Overview
The ZF 4657.373.017 SHAFT is a critical rotational component engineered specifically for the WG190, WG210, and WG230 series transmissions. This OEM genuine part transmits torque between gear sets within the planetary assembly, ensuring precise power flow and smooth shifting under heavy-duty loads. The shaft interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, forming the core of the drivetrain assembly. As part number 4657.373.017, this shaft is manufactured to ZF’s exacting tolerances for hardness and concentricity, making it a direct replacement for worn units in commercial vehicle transmissions.
Symptoms of Failure
- Gear slipping under load: A worn 4657.373.017 shaft can cause intermittent power loss, especially when climbing grades or hauling heavy payloads, as the shaft fails to maintain proper gear engagement.
- Metallic grinding noises: Excessive bearing play from a damaged shaft produces a distinct grinding or whining sound from the transmission housing, often mistaken for differential issues.
- Oil leaks near the front section: Shaft wear can compromise the seal surface, leading to fluid seepage around the HOUSING REAR PART interface. This symptom is frequently accompanied by low transmission fluid levels.
- Vibration during acceleration: A bent or fatigued shaft creates driveline shudder that intensifies with speed, often misdiagnosed as a universal joint problem.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.373.017 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | ~285 mm (estimated) |
| Outer Diameter | ~42 mm (splined section) |
| Weight | ~2.3 kg (5.1 lbs) |
| OEM Reference | ZF 4657.373.017 |
| Surface Treatment | Phosphate coating for corrosion resistance |
Compatibility
This shaft is a direct fit for ZF WG180, WG190, WG200, WG210, and WG230 series transmissions used in medium- and heavy-duty trucks, buses, and off-highway equipment. It is also compatible with certain ZF Ecolife variants that share the same planetary carrier architecture. Always verify the spline count and overall length against your existing shaft before installation. The shaft works in conjunction with the HOUSING REAR SECTION to ensure proper alignment of the output gear train.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing that encloses all gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing that supports input shaft bearings |
| 4657201170 | HOUSING REAR PART | Rear housing segment that contains output shaft seals |
| 4657298102 | HOUSING REAR SECTION | Complete rear housing assembly for final drive support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing-to-shaft positioning |
| 0636100801 | CAP SCREW | Fastener for securing housing sections together |
| 4656301148 | FIXING PLATE | Locking plate that prevents shaft rotation within housing |
| 4657301032 | SCREEN SHEET | Fine mesh filter for transmission fluid intake |
| 4657301033 | SCREEN SHEET | Secondary filter screen for high-pressure circuits |
| 0636100803 | CAP SCREW | M10 bolt for rear housing attachment points |
Frequently Asked Questions
Q: Can the 4657.373.017 shaft be reused after a transmission rebuild?
A: ZF recommends replacing this shaft during any major overhaul due to micro-cracking from cyclic loading. Inspect the splines and bearing journals for wear; if any scoring is visible, replacement is mandatory.
Q: What torque specification is required for the shaft retaining nut?
A: The retaining nut should be torqued to 280 Nm (207 ft-lbs) with fresh thread locker applied. Always use a new cotter pin after tightening.
Q: Is this shaft compatible with the ZF 6HP automatic transmission?
A: No. The 4657.373.017 is designed exclusively for the WG series (WG180-WG230) and should not be installed in 6HP or 8HP units due to different spline profiles and bearing diameters.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 4657.373.017 SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.373.017 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 4657.373.017 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023101
- Documentation reference: 4657023102
- Documentation reference: 4657024112
- Documentation reference: 4657024145
- Illustration section: COUPLING
Cross Reference Support
- Cross-reference record available for RFQ review.
Specification Snapshot
| ZF part number | 4657.373.017 |
|---|---|
| Normalized SKU | 4657373017 |
| 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
