Overview
The ZF 4660.101.804 TRANSMISSION HOUSING is the structural core of the WG200 and WG92 series transmissions. This OEM genuine part encloses the gear train, valve body, and hydraulic circuits, ensuring precise alignment of internal components under high torque loads. As the primary load-bearing casing, it absorbs vibrational stress and maintains oil pressure integrity. The SKU 4660.101.804 is a direct replacement for original equipment, machined from high-grade cast iron to ZF’s exacting tolerances. When paired with a 4660198001 PERIPHERALS kit and a 0501209818 RANGE SELECTOR, this housing restores full transmission rigidity.
Symptoms of Failure
- External oil seepage at mating surfaces – Cracks or warping in the housing cause fluid to escape, leading to low transmission fluid levels and erratic shifting.
- Persistent gear slipping under load – A deformed housing misaligns the clutch packs and planetary gears, resulting in power loss during acceleration.
- Unusual metallic grinding noises – Bearing bore wear inside the housing allows shaft play, creating audible contact between rotating parts.
- Contaminated transmission fluid with metal shavings – Internal fractures shed debris into the oil, which can clog the 4660221012 SUCTION TUBE and damage the valve body.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.101.804 |
| Material | GJL-250 Cast Iron (DIN 1691) |
| Weight | 18.7 kg (41.2 lbs) |
| Overall Dimensions | 620 mm x 380 mm x 290 mm |
| Bolt Hole Pattern | 12x M12 on 480 mm PCD |
| OEM Reference | ZF 4660.101.804 |
| Seal Surface Finish | Ra 0.8 µm |
Compatibility
This housing is engineered for the ZF WG 200 Series (including WG180, WG200, WG210) and the ZF WG 92 Series (WG92, WG98). It directly replaces the earlier 4660101011 TRANSMISSION HOUSING in retrofit applications. For full assembly, combine with a 4660301018 HOUSING for the rear cover section. Always verify bellhousing compatibility before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | Seal and gasket kit for housing interfaces |
| 0501209818 | RANGE SELECTOR | Controls gear range engagement |
| 4660101011 | TRANSMISSION HOUSING | Earlier housing variant for WG180 |
| 4660301018 | HOUSING | Rear cover housing for oil sump |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0769123894 | TYPE PLATE | Identification tag with serial number |
| 4660221012 | SUCTION TUBE | Oil pickup tube from pan to pump |
| 0634100317 | O-RING | Seals suction tube connection |
| 0636103273 | CAP SCREW | Fastener for housing bolt holes |
| 0750100022 | SCREW PLUG | Closes oil gallery access ports |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
