Overview
The ZF 4657.130.056 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG191 and WG211 transmission series. This part serves as the primary mechanical link between the engine flywheel housing and the transmission bell housing, ensuring precise alignment and torque transfer during operation. As a genuine ZF part, SKU 4657.130.056 guarantees exact fitment and durability under high-stress industrial conditions. It sits directly at the input section of the transmission assembly, working in tandem with the 4657101049: TRANSMISSION HOUSING to maintain structural integrity and prevent misalignment that could lead to premature wear.
Symptoms of Failure
When the ZF 4657.130.056 ENGINE CONNECTION begins to fail, operators may notice specific performance issues that require immediate attention. Oil seepage at the engine-transmission junction is a common early indicator, often caused by degraded sealing surfaces on this connection part. Vibration during gear engagement can occur when the connection loosens, leading to uneven load distribution across the drivetrain. Difficulty in transmission alignment during rebuilds is another telltale sign, as a worn connection prevents proper seating of the 4657301130: HOUS.FRONT SECT. Finally, intermittent gear slipping under heavy load may develop if the connection fails to maintain consistent axial positioning, directly impacting torque transfer efficiency.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.130.056 |
| Material | High-grade cast iron with corrosion-resistant coating |
| Weight | 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 45 mm |
| OEM Reference | ZF 4657.130.056 (Genuine) |
| Bolt Pattern | 6-hole symmetrical, M12 thread |
| Operating Temperature Range | -40°C to 120°C |
Compatibility
This ENGINE CONNECTION is engineered for ZF WG191 and WG211 series transmissions, but it also fits select models in the WG180 and WG200 families due to shared bell housing dimensions. It is directly compatible with the 4657301131: HOUSING REAR PART and the 0631306816: CYLINDRICAL PIN, which secure the connection during assembly. For optimal performance, always pair this part with genuine ZF fasteners and seals. Verify your transmission serial number against ZF’s compatibility charts before ordering, as variations exist between early and late production runs of the WG211 series.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657301130 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657301131 | HOUSING REAR PART | Rear section of transmission housing |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636102489 | CAP SCREW | Fastener for housing connections |
| 4656301148 | FIXING PLATE | Secures connection to engine block |
| 0636102463 | CAP SCREW | High-torque fastener for critical joints |
| 4657201133 | SCREEN SHEET | Debris filter for oil flow |
| 0636115287 | CAP SCREW | M10 bolt for auxiliary mounts |
| 4657301065 | PLATE | Wear plate for connection interface |
