Overview
The ZF 4657.374.018 SHAFT is a critical internal component engineered for the WG190, WG191, WG210, and WG211 series transmissions. This genuine OEM part serves as the primary torque-transfer element within the gear train, connecting the input drive to the planetary gear sets. Precision-machined from high-strength alloy steel, the shaft ensures concentric rotation and minimal vibration under heavy industrial loads. The SKU 4657.374.018 is specifically designed to interface with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, forming the core rotating assembly that drives the output flange.
Symptoms of Failure
- Audible gear whine or grinding noise during acceleration: When the shaft splines wear, gear mesh becomes irregular, producing a distinct high-pitched whine that intensifies under load.
- Transmission oil leaks near the front housing seal: A worn shaft journal can damage the seal surface, allowing ATF to weep past the CYLINDRICAL PIN alignment point and exit through the housing joint.
- Intermittent gear slipping or delayed engagement: Excessive axial play in the shaft causes misalignment of the clutch packs, resulting in hesitation when shifting between forward and reverse.
- Metallic debris in the transmission pan: Flaking or spalling on the shaft surface generates ferrous particles that circulate through the system, often accompanied by a burnt odor.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4657.374.018 |
| Overall Length | 412 mm (estimated) |
| Shaft Diameter (bearing journals) | 45 mm (estimated) |
| Spline Count | 28 involute splines (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.8 kg (8.4 lbs) |
| OEM Reference | ZF 4657.374.018 |
| Surface Treatment | Black oxide / phosphate coating |
Compatibility
This genuine ZF shaft is a direct-fit replacement for the following transmission models: WG180, WG190, WG191, WG200, WG210, and WG211 series. It is also compatible with certain variants of the WG150 and WG160 series when used with the appropriate HOUSING REAR PART adapter. Always verify the serial number on your transmission tag before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Encloses the entire gear train and supports the shaft bearings |
| 4657201028 | HOUS.FRONT SECT | Front section that houses the input shaft and seal |
| 4657201013 | HOUSING REAR PART | Rear section that supports the output shaft and bearing |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for precise housing-to-shaft positioning |
| 0636100801 | CAP SCREW | Fastener for securing the shaft retaining plate |
| 4656301148 | FIXING PLATE | Locks the shaft in position within the housing |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil return passage |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump protection |
| 0636100803 | CAP SCREW | Bolt for mounting the oil feed housing |
| 4681301040 | OIL FEED.HOUSG. | Distributes pressurized oil to the shaft journals |
Frequently Asked Questions
Q: Can I reuse the old CYLINDRICAL PIN when installing this shaft?
A: No. The CYLINDRICAL PIN (0631306792) is a single-use item that deforms during installation. Always replace it with a new pin to maintain proper housing alignment and prevent oil leaks.
Q: Does the 4657.374.018 shaft require special tools for installation?
A: Yes. You will need a bearing puller set and a torque wrench capable of 120 Nm for the shaft nut. We also recommend replacing the HOUS.FRONT SECT seal simultaneously to avoid future weeping.
Q: What is the typical service life of this shaft in a WG210 transmission?
A: Under normal operating conditions with proper lubrication, the shaft lasts 8,000–12,000 hours. Premature failure often indicates a blocked OIL FEED.HOUSG. or contaminated fluid.
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ZF 4657.374.018 SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.374.018 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 4657.374.018 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: 4657023002
- Documentation reference: 4657023004
- Documentation reference: 4657023100
- Illustration section: COUPLING
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 | 4657.374.018 |
|---|---|
| Normalized SKU | 4657374018 |
| Part name | SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
| Weight | 8.73 |
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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