Overview
The ZF 4143.302.065 INPUT SHAFT is a precision-engineered OEM genuine component designed for the WG100, WG130, and WG131 transmission series. This critical shaft transmits engine torque directly from the clutch or torque converter into the gearset, serving as the primary rotational interface within the input section. As a high-stress rotating element, the 4143.302.065 must withstand significant torsional loads and maintain exacting concentricity to ensure smooth power delivery. This input shaft works in concert with the 4143101017 HOUSING and the 4143301039 HOUSING to form the sealed input assembly. The SKU 4143.302.065 is machined from case-hardened alloy steel to OEM specifications, ensuring a service life that matches the original transmission build.
Symptoms of Failure
- Transmission gear slipping under load: When the input shaft splines wear or the bearing journal becomes scored, the shaft can no longer maintain positive engagement, causing the transmission to slip out of gear during acceleration.
- Front seal oil leakage: A worn input shaft bearing surface or a damaged shaft seal land will allow transmission fluid to weep past the 0501318136 GASKET, leaving puddles under the bell housing.
- Vibration or driveline shudder: A bent or unbalanced input shaft produces noticeable low-frequency vibration through the clutch pedal or floorboard, especially at highway speeds.
- Difficult gear engagement: Worn pilot bearing journals or spline deformation make it hard to shift into first or reverse, often accompanied by grinding noises.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 4143.302.065 |
| Overall Length | 285 mm (estimated) |
| Spline Major Diameter | 32 mm |
| Bearing Journal Diameter | 45 mm |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 1.85 kg (approx.) |
| OEM Reference | ZF 4143.302.065 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This input shaft is engineered for ZF heavy-duty manual transmissions in the WG series. Verified direct fitment includes the WG100, WG130, and WG131 models. Based on spline geometry and bearing dimensions, it is also compatible with the WG180, WG200, and WG210 series when used with the correct 0636101084 CAP SCREW kit. Always confirm shaft length and pilot bearing fitment before installation. This part is not suitable for the WG150 or WG250 series without adapter components.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101017 | HOUSING | Encloses the input shaft bearing and seal |
| 4143301039 | HOUSING | Supports the countershaft and input gear |
| 0501318136 | GASKET | Seals the housing interface to prevent fluid leaks |
| 0636101084 | CAP SCREW | Fastens the housing to the transmission case |
| 0750108044 | PLUG | Closes unused ports in the housing |
| 0636302014 | SCREW PLUG | Seals threaded oil passages |
| 0634801057 | SEALING RING | Provides static seal between mating surfaces |
| 0730365159 | TYPE PLATE | Identifies transmission model and serial number |
| 4143201019 | VALVE INSERT | Controls hydraulic flow in the shift mechanism |
| 0634306198 | O-RING | Seals the valve insert in the housing bore |
ZF 4143.302.065 INPUT SHAFT – Shaft RFQ Support
For ZF 4143.302.065 INPUT SHAFT, send the part number, removed-part photos, and application context so PartsZF can prepare a focused sourcing response.
Part-Number Summary
Use ZF number 4143.302.065 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: INPUT
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 | 4143.302.065 |
|---|---|
| Normalized SKU | 4143302065 |
| Part name | INPUT SHAFT |
| Product category | shaft |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
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
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- ZF 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
