Overview
The ZF 4657.101.083 TRANSMISSION HOUSING is the central structural component of the WG210 series powershift transmission. This OEM genuine part encloses the planetary gear sets, clutch packs, and hydraulic valve body, providing precise alignment and load-bearing support under extreme torque conditions. As the primary casing, it also serves as the oil reservoir and thermal management interface. The SKU 4657.101.083 is a direct replacement for the original factory-installed housing, ensuring dimensional accuracy and metallurgical integrity for long service intervals.
Symptoms of Failure
- External oil seepage at mating surfaces: Cracks or warpage in the housing cause transmission fluid to leak around the bell housing or rear cover, leading to low fluid levels and overheating.
- Persistent gear engagement delay or slipping: Distortion of the housing bore misaligns the clutch drum and sun gear, resulting in delayed shifts or torque loss under load.
- Unusual metallic grinding or whining noise: Bearing bore wear allows shaft deflection, creating audible contact between rotating gears and the housing interior.
- Contaminated transmission fluid with metallic debris: Internal fractures shed aluminum or cast iron particles into the oil, accelerating wear on pumps and valve bodies.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.101.083 |
| Material | High-grade cast aluminum alloy (A356-T6) |
| Weight | 14.2 kg (31.3 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 275 mm |
| Bolt Hole Pattern | 12-point M12 x 1.5 on 280 mm PCD |
| OEM Reference | ZF 4657.101.083 |
Compatibility
This housing is specifically engineered for the ZF WG210 series, but it also fits select models in the WG180, WG200, and WG250 families due to shared bell housing patterns and bearing journal dimensions. Always verify the transmission serial number against the OEM parts catalog. The housing interfaces directly with the HOUS.FRONT SECT (4657201166) and the HOUSING REAR PART (4657201173) to form the complete transmission case assembly. Secure fastening is achieved using CAP SCREW (0636100801) and CAP SCREW (0636100803), while alignment is maintained by the CYLINDRICAL PIN (0631306816).
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201166 | HOUS.FRONT SECT | Front section of transmission case |
| 4657201173 | HOUSING REAR PART | Rear cover and output bearing support |
| 0631306816 | CYLINDRICAL PIN | Dowel pin for precise case alignment |
| 0636100801 | CAP SCREW | M12 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Retains oil filter and screen assembly |
| 4657301032 | SCREEN SHEET | Fine mesh oil strainer (primary) |
| 4657301033 | SCREEN SHEET | Fine mesh oil strainer (secondary) |
| 0636100803 | CAP SCREW | M10 bolt for accessory mounting |
| 0750301003 | OIL FEED.HOUSG. | Pressurized oil supply tube |
| 4656301023 | GASKET | Sealing gasket for housing joints |
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