Overview
The ZF 4657.130.104 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG191 and WG211 transmission series. This precision-engineered part serves as the mechanical link between the engine flywheel housing and the transmission bell housing, ensuring correct axial alignment and torque transfer during operation. As a factory-specified replacement, the SKU 4657.130.104 guarantees exact fitment and material integrity, preventing vibration-induced wear at the powertrain junction. When installed alongside the 4657101049: TRANSMISSION HOUSING, this connection plate forms a sealed, rigid assembly that withstands high thermal and mechanical loads.
Symptoms of Failure
- Engine-to-transmission oil seepage: A worn or cracked ENGINE CONNECTION often allows transmission fluid to escape at the mating surface, leaving visible drips under the bell housing area.
- Abnormal driveline vibration: Degradation of the connection plate’s locating surfaces causes misalignment, resulting in low-frequency shuddering during acceleration or deceleration.
- Difficult gear engagement: When the part loses its dimensional stability, the input shaft alignment shifts, leading to grinding noises or hesitation when shifting between forward and reverse.
- Bolt hole elongation or cracking: Over-torqued or fatigued connections produce visible stress fractures around the mounting points, compromising the entire 0631306816: CYLINDRICAL PIN alignment system.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.130.104 |
| Material | High-tensile cast iron (GGG-40) |
| Overall Length | 245 mm |
| Overall Width | 185 mm |
| Thickness | 18 mm |
| Weight | 2.85 kg |
| Bolt Hole Pattern | 8x M12 on 160 mm PCD |
| OEM Reference | ZF 4657.130.104 |
| Surface Treatment | Phosphate-coated for corrosion resistance |
Compatibility
This ENGINE CONNECTION is engineered for the ZF WG191 and WG211 series, which includes the WG180, WG200, and WG210 variants. It directly replaces the factory-fitted part in all WG191 and WG211 applications from 2005 onward. The component also interfaces with the 4657301130: HOUS.FRONT SECT and the 4657301131: HOUSING REAR PART to complete the transmission casing assembly. For proper installation, ensure the mating surfaces are clean and the cylindrical pin (0631306816) is inspected for wear.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main casing enclosing gear sets and shafts |
| 4657301130 | HOUS.FRONT SECT | Forward section of the transmission housing |
| 4657301131 | HOUSING REAR PART | Rear casing section for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 0636102489 | CAP SCREW | M12 fastener for housing-to-connection plate |
| 4656301148 | FIXING PLATE | Locking bracket for bolt retention |
| 0636102463 | CAP SCREW | M10 bolt for auxiliary bracket mounting |
| 4657201133 | SCREEN SHEET | Mesh filter for oil return passage |
| 0636115287 | CAP SCREW | M8 hex bolt for cover plate attachment |
| 4657301065 | PLATE | Spacer shim for axial clearance adjustment |
