Overview
The ZF 4657.330.080 CONVERTER BELL is a critical structural component designed for the WG210 series of automatic transmissions. This OEM genuine part, identified by SKU 4657.330.080, serves as the primary mounting interface between the torque converter assembly and the main transmission casing. It houses the converter assembly, ensuring precise alignment of the input shaft and pump drive. Without this bell housing, the torque converter cannot be secured, making it essential for power transfer from the engine to the transmission. It is engineered to withstand high torsional loads and thermal expansion, providing a sealed environment that protects internal components from debris and contamination.
Symptoms of Failure
When the ZF 4657.330.080 converter bell begins to wear or crack, operators often notice specific performance issues. Look for these failure indicators to diagnose problems early:
- Torque converter oil leaks at the bell housing seam: A cracked or warped bell allows transmission fluid to escape, leading to low fluid levels and eventual gear slipping.
- Vibration during acceleration or deceleration: Misalignment caused by a damaged bell housing creates driveline shudder, especially under load.
- Difficulty engaging gears or delayed shifting: If the bell housing distorts, the converter may not align properly with the pump, causing erratic hydraulic pressure.
- Metallic grinding noises from the bell area: Internal contact between the converter and a fractured bell housing produces audible scraping sounds.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4657.330.080 |
| Material | High-grade cast aluminum alloy (A356-T6) |
| Weight | Approx. 8.2 kg (18.1 lbs) |
| Outer Diameter | 380 mm |
| Bolt Hole Pattern | 6-hole, 180 mm PCD |
| Surface Treatment | Corrosion-resistant anodized coating |
| Compatible Torque Converter | WG210 series (up to 600 Nm) |
Compatibility
This ZF 4657.330.080 converter bell is specifically engineered for the WG 210 Series transmission family. It is also compatible with earlier ZF models including the WG180 and WG200 series, provided the torque converter mounting flange matches. For optimal fitment, always verify the bell housing bolt pattern against your transmission’s front section. This part integrates directly with the TRANSMISSION HOUSING (4657101085) and the HOUS.FRONT SECT (4657201161) to form a complete assembly. It also pairs with the HOUSING REAR PART (4657201162) and the HOUSING REAR SECTION (4657298107) for full drivetrain support.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main casing that encloses gear sets and valve body |
| 4657201161 | HOUS.FRONT SECT | Front section housing the pump and input shaft |
| 4657201162 | HOUSING REAR PART | Rear section supporting output shaft and bearings |
| 4657298107 | HOUSING REAR SECTION | Alternative rear housing for extended wheelbase models |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing assembly |
| 0636100801 | CAP SCREW | M10 bolt for securing bell housing to transmission |
| 4656301148 | FIXING PLATE | Retaining plate for torque converter bolts |
| 4657301032 | SCREEN SHEET | Fine mesh filter for transmission oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for high-flow applications |
| 0636100803 | CAP SCREW | M12 bolt for heavy-duty mounting points |
Frequently Asked Questions
Q: Can the ZF 4657.330.080 be used on a WG180 transmission?
A: Yes, this converter bell is compatible with WG180 and WG200 series transmissions, provided the torque converter mounting pattern matches the 6-hole 180 mm PCD specification. Always cross-reference your transmission serial number before installation.
Q: What causes cracks in the converter bell housing?
A: Common causes include overtightening of mounting bolts, thermal stress from overheating, or impact damage from road debris. Regular inspection of the bell housing for hairline fractures can prevent sudden failure.
Q: Is this part sold with mounting hardware?
A: No, the 4657.330.080 is supplied as a standalone bell housing. We recommend using new CAP SCREW (0636100801) and CYLINDRICAL PIN (0631306816) for proper torque specifications and alignment.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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