Overview
The ZF 4657.130.111 ENGINE CONNECTION is a critical interface component designed specifically for the WG 210 Series transmission. This OEM genuine part serves as the mechanical and hydraulic link between the engine flywheel housing and the transmission bell housing, ensuring precise alignment and secure power transfer. Located at the forward end of the transmission assembly, the ENGINE CONNECTION (SKU: 4657.130.111) absorbs torsional vibrations and maintains the concentricity required for smooth clutch engagement. Without this component, the driveline cannot maintain structural integrity under load, making it essential for any WG210 rebuild or overhaul.
Symptoms of Failure
When the ZF 4657.130.111 ENGINE CONNECTION begins to wear, operators often notice transmission oil leaks at the bell housing joint, particularly after extended highway operation. A second common symptom is gear engagement hesitation or grinding during low-speed maneuvering, caused by misalignment between the engine and transmission. Third, abnormal vibration at idle or under load frequently indicates that the ENGINE CONNECTION has lost its damping capability. Finally, difficulty shifting between forward and reverse gears can signal that this part requires immediate replacement to prevent damage to the HOUS.FRONT SECT and other internal components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.130.111 |
| OEM Reference | ZF 4657.130.111 |
| Material | High-grade cast iron with precision-machined mating surfaces |
| Weight | 2.8 kg (6.2 lbs) |
| Outer Diameter | 210 mm |
| Bolt Hole Pattern | 8-hole, 180 mm PCD |
| Sealing Surface | Integrated O-ring groove for O-RING (0634313603) |
| Fastener Spec | Accepts 螺栓 (0636115293) and CAP SCREW (0636100801) |
| Alignment Feature | Dowel pin hole for CYLINDRICAL PIN (0631306816) |
Compatibility
This ENGINE CONNECTION is primarily designed for the ZF WG 210 Series transmission, but it also fits select models in the WG180 and WG200 families when used with the correct FIXING PLATE (4656301148). It is compatible with all WG210 variants produced after 2005, including those equipped with SCREEN SHEET (4657301032) or SCREEN SHEET (4657301033) filter assemblies. For installations requiring additional oil feed, pair this part with the OIL FEED.HOUSG. (4681301040) and secure using CAP SCREW (0636100803). Always verify bolt pattern compatibility with your specific transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section that mates with the ENGINE CONNECTION |
| 0636115293 | 螺栓 | Mounting bolt for securing the ENGINE CONNECTION |
| 0634313603 | O-RING | Sealing ring for oil-tight joint between components |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel pin for precise positioning |
| 0636100801 | CAP SCREW | Hex cap screw for final assembly torque |
| 4656301148 | FIXING PLATE | Retaining plate for additional structural support |
| 4657301032 | SCREEN SHEET | Fine mesh filter screen for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter screen alternative |
| 0636100803 | CAP SCREW | Alternate cap screw for oil feed housing |
| 4681301040 | OIL FEED.HOUSG. | Oil feed housing for lubrication supply |
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