Overview
The ZF 4660.330.016 CONVERTER BELL is a critical structural component designed for the WG92 and WG98 transmission series. This OEM genuine part serves as the housing that connects the torque converter to the main transmission casing, ensuring precise alignment and secure mounting. The 4660.330.016 SKU is engineered to withstand high torsional loads and thermal expansion, acting as the interface between the engine flywheel housing and the transmission assembly. It is often replaced in conjunction with the 4660101017: TRANSMISSION HOUSING to maintain structural integrity during rebuilds.
Symptoms of Failure
- Torque converter oil leaks at the bell housing seam: When the converter bell warps or cracks, transmission fluid seeps past the mating surface, leaving puddles under the vehicle.
- Vibration during gear engagement: A worn bell housing allows the converter to shift out of alignment, causing driveline shudder and harsh shifts.
- Bolt hole elongation or stripping: Repeated stress cycles can deform the mounting points, leading to loose converter bolts and eventual gear slipping under load.
- Metal debris in the transmission pan: Cracking of the bell housing generates metallic particles that contaminate the fluid, accelerating wear on other components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4660.330.016 |
| Material | High-strength cast aluminum alloy (A356-T6) |
| Weight | 8.4 kg (18.5 lbs) |
| Outer Diameter | 395 mm |
| Bolt Hole Pattern | 6-hole, 10.9 grade steel inserts |
| OEM Reference | ZF 4660.330.016 |
| Sealing Surface | Machined flatness tolerance ≤ 0.05 mm |
Compatibility
This converter bell is specifically engineered for ZF WG92 and WG98 series transmissions, including models such as WG180, WG200, and WG210. It is also compatible with select WG150 variants that share the same bell housing bolt pattern. For full assembly, this part mates with the 4660301054: HOUSING II and is secured using the 0631306174: CYLINDRICAL PIN for precise alignment. Identification is verified via the 0769123894: TYPE PLATE affixed to the assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101017 | TRANSMISSION HOUSING | Main casing enclosing gear sets and shafts |
| 4660301054 | HOUSING II | Intermediate housing supporting clutch packs |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0769123894 | TYPE PLATE | Identification plate with serial number |
| 0750100022 | SCREW PLUG | Seals fluid passages in the bell housing |
| 4660221029 | SUCTION TUBE | Oil pickup tube for pump lubrication |
| 0634100317 | O-RING | Static seal between bell housing and converter |
| 0636103273 | CAP SCREW | Fastener for converter bell to housing |
| 0634306311 | O-RING | Secondary seal for oil gallery ports |
| 4660321029 | FIXING PLATE | Retains converter bell alignment during operation |
