Overview
The ZF 4642.330.133 INPUT SHAFT is a precision-machined OEM genuine component engineered specifically for the WG150 series transmission. This critical shaft transfers rotational force from the engine’s torque converter directly into the planetary gear set, serving as the primary power input interface within the drivetrain. Constructed from high-tensile alloy steel and case-hardened for durability, the 4642.330.133 ensures minimal torsional deflection under heavy loads. When installed correctly, this shaft mates with the TRANSMISSION HOUSING (4642101047) and the TRANSMISSION HOUSING (4642301207) to maintain precise alignment. The SKU 4642.330.133 is a direct OEM replacement, guaranteeing exact spline geometry and bearing journal tolerances for reliable long-term operation.
Symptoms of Failure
- Transmission gear slipping under load: A worn input shaft spline can cause intermittent engagement loss, especially during acceleration or hill climbs, as the clutch pack fails to receive consistent torque.
- Metallic grinding noise from bell housing area: Bearing journal wear on the 4642.330.133 produces a distinct low-pitched grinding sound, often mistaken for torque converter failure, which intensifies with engine RPM.
- Oil leaks at the front pump seal: Excessive shaft radial play damages the seal lip, leading to ATF seepage around the input shaft area, visible as drips near the transmission-to-engine mating surface.
- Vibration during gear engagement: A bent or cracked input shaft creates harmonic vibrations felt through the shift lever or floorboard, particularly when shifting from Neutral to Drive or Reverse.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.330.133 |
| OEM Reference | ZF 4642.330.133 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 385 mm (approx.) |
| Spline Diameter (Input) | 32 mm (10-spline, 30° pressure angle) |
| Bearing Journal Diameter | 45 mm (ground finish) |
| Weight | 4.2 kg (9.3 lbs) |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This input shaft is primarily designed for the ZF WG150 series transmission, commonly found in medium-duty trucks, buses, and off-highway equipment. Based on spline pattern and bearing dimensions, the 4642.330.133 is also compatible with WG180 and WG200 models when used with the appropriate GROOVED STUD (0631311009) for housing alignment. It is not interchangeable with WG130 or WG250 series shafts due to differing pilot bearing diameters. Always verify the TYPE PLATE (0730365067) on your transmission housing to confirm model designation before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Encloses gear train and supports input shaft bearings |
| 4642301207 | TRANSMISSION HOUSING | Alternate housing variant for WG150 series |
| 0730365067 | TYPE PLATE | Identification plate with transmission serial and model |
| 0631311009 | GROOVED STUD | Alignment dowel for housing-to-shaft positioning |
| 4642301168 | SCREEN SHEET | Oil filter screen for lubrication circuit |
| 4642301169 | SCREEN SHEET | Fine mesh screen for debris protection |
| 0636100621 | HEXAGON SCREW | Fastener for housing cover attachment |
| 4642301186 | SCREEN SHEET | Secondary oil strainer for valve body |
| 4644106300 | SHIFT SYSTEM | Hydraulic shift control assembly |
| 4644306500 | COVER PLATE | Sealing plate for shift mechanism access |
ZF 4642.330.133 INPUT SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 4642.330.133 INPUT SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 4642.330.133 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: ENGINE CONNECTION
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 | 4642.330.133 |
|---|---|
| Normalized SKU | 4642330133 |
| 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: 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 2094.110.011 P.T.O. SHAFT
- ZF 2094.110.014 P.T.O. SHAFT
- ZF 4642.303.002 OUTPUT SHAFT
- ZF 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
