Overview
The ZF 4644.301.240 TRANSMISSION HOUSING is the structural core of the WG200 series gearbox, serving as the rigid enclosure that supports all internal rotating assemblies, valve bodies, and hydraulic circuits. This OEM genuine part, identified by SKU 4644.301.240, directly houses the torque converter, planetary gear sets, and clutch packs, ensuring precise alignment under high torque loads. Without this housing, the transmission cannot maintain the necessary oil pressure or gear mesh integrity, making it a critical component for any rebuild or overhaul of the WG200 series.
Symptoms of Failure
- Persistent oil seepage from bell housing area: A cracked or warped housing allows transmission fluid to escape, often mistaken for a simple gasket failure. Search for “ZF WG200 transmission housing oil leak repair” to identify this issue.
- Gear engagement hesitation or slipping: Internal stress fractures in the housing can misalign the valve body, causing delayed shifts or clutch pack slippage under load.
- Unusual metallic grinding noises: A compromised housing may allow the planetary gear set to shift out of tolerance, producing a distinct grinding sound during acceleration or deceleration.
- Vibration through the driveline: Warpage in the mounting surfaces of the housing can cause the entire transmission assembly to vibrate, especially at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4644.301.240 |
| Material | High-Strength Aluminum Alloy (A356-T6) |
| Weight | 18.5 kg (40.8 lbs) |
| Overall Length | 520 mm |
| Overall Width | 380 mm |
| Overall Height | 310 mm |
| OEM Reference | ZF 4644.301.240 |
| Bolt Pattern | M12 x 1.75 (8-point) |
Compatibility
This housing is engineered specifically for the ZF WG200 series transmissions, including models such as the WG180, WG200, and WG211. It is also compatible with select variants of the WG150 series where the bell housing pattern matches. Always verify the casting number on your existing housing before ordering. The 4644.301.240 housing interfaces directly with the 4460165051: CONSOLE and the 4460368311: CONSOLE to secure the transmission to the vehicle frame. During installation, use the 0636011429: HEXAGON SCREW and 0730100365: WASHER to properly fasten the housing to the torque converter bell.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644105418 | DISCONNECTION | Isolates torque converter from driveline |
| 4644305041 | ADAPTER | Connects housing to engine bell housing |
| 4460068159 | AXLE DRIVE | Transfers power to differential |
| 4460168651 | INPUT FLANGE | Receives torque from engine |
| 4460368318 | FLANGE | Seals output shaft connection |
| 4460368317 | DUST PROTECTION | Prevents debris ingress |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
