Overview
The ZF 4642.301.182 END COVER is a critical sealing and structural component designed for the WG150, WG180, and WG201 series transmissions. This OEM genuine part sits at the rear of the transmission housing, enclosing the output shaft area and protecting internal components from contamination while maintaining proper oil pressure. The SKU 4642.301.182 ensures a precise fit and durable performance, directly interfacing with the TRANSMISSION HOUSING (4642101109) and the TRANSMISSION HOUSING (4642301205) to form a sealed assembly. This end cover is manufactured to ZF’s exacting standards, guaranteeing long service life in heavy-duty industrial applications.
Symptoms of Failure
- External oil leakage around the rear seal area: A worn or cracked end cover allows transmission fluid to seep past the gasket, often leaving visible drips under the vehicle or machinery. This is a common sign that the 4642.301.182 cover requires immediate replacement.
- Contaminated transmission fluid or debris ingress: When the end cover loses its seal integrity, dirt and moisture can enter the housing, leading to accelerated wear on internal gears and bearings. Operators may notice gritty fluid during routine checks.
- Abnormal noise or vibration from the output shaft: A loose or damaged end cover can cause misalignment of the output shaft bearing, resulting in a whining or grinding sound during operation. This symptom often accompanies a failing GROOVED STUD (0631311009) that secures the cover.
- Intermittent gear engagement issues: Loss of hydraulic pressure due to a compromised end cover can lead to delayed or harsh shifting, particularly in WG180 and WG201 transmissions.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4642.301.182 |
| Material | Die-cast aluminum alloy with corrosion-resistant coating |
| Overall Dimensions (L x W x H) | Approx. 280 mm x 180 mm x 45 mm |
| Weight | 1.2 kg (2.65 lbs) |
| OEM Reference | ZF 4642.301.182 |
| Mounting Holes | 6 x M10 threaded bores |
| Seal Type | Integrated lip seal with dust lip |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This end cover is engineered for the ZF WG150, WG180, and WG201 series transmissions, which are commonly used in off-highway vehicles, construction equipment, and agricultural machinery. It directly replaces the original cover on models with serial numbers starting from 2010 onward. The 4642.301.182 is also compatible with certain WG200 variants that share the same rear housing interface. For proper identification, always cross-reference the TYPE PLATE (0730365125) on your transmission to confirm model and build date. This cover works in conjunction with the SHIFT SYSTEM (4644106324) and the PLATE (4644306598) for complete assembly integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural housing for gear and shaft assembly |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG180 series |
| 0730365125 | TYPE PLATE | Identification plate with transmission serial and model |
| 0631311009 | GROOVED STUD | Fastening stud for end cover and housing alignment |
| 4642301168 | SCREEN SHEET | Oil filter screen for sump protection |
| 4642301169 | SCREEN SHEET | Secondary oil screen for high-flow circuits |
| 0636100621 | HEXAGON SCREW | M10 hex bolt for securing cover and brackets |
| 4642301186 | SCREEN SHEET | Fine mesh screen for hydraulic control valves |
| 4644106324 | SHIFT SYSTEM | Hydraulic shift control unit for gear selection |
| 4644306598 | PLATE | Clutch backing plate for torque transfer |
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