Overview
The ZF 4651.130.001 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG 100 Series transmission family. This precision-engineered part serves as the primary mechanical link between the engine flywheel housing and the transmission bell housing, ensuring correct axial alignment and torque transfer during operation. The SKU 4651.130.001 is manufactured to ZF’s exacting tolerances, providing a secure mounting point that absorbs vibration and maintains driveline integrity under heavy-duty industrial loads. When installed alongside the 4651101004: TRANSMISSION HOUSING, this connection component forms the foundation of the entire gearbox assembly.
Symptoms of Failure
- Transmission oil leaks at the engine-to-gearbox interface: A worn or cracked 4651.130.001 ENGINE CONNECTION often causes fluid seepage between mating surfaces, leading to gradual oil loss and potential contamination of clutch components.
- Abnormal driveline vibration during acceleration: When this connection degrades, misalignment between the engine and transmission produces rhythmic shaking that intensifies under load, particularly in WG100-equipped vehicles.
- Difficulty engaging gears or gear slipping: Structural fatigue in the connection point can shift the transmission’s input shaft position, causing incomplete clutch engagement and intermittent power loss.
- Metallic knocking noises from the bell housing area: Loose or fractured mounting points allow the transmission to shift relative to the engine, creating audible contact between rotating components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4651.130.001 |
| OEM Reference | ZF 4651.130.001 |
| Material | High-grade cast iron (GGG-40) |
| Overall Length | 185 mm |
| Flange Diameter | 320 mm |
| Bolt Hole Pattern | 12 x M12 on 280 mm PCD |
| Weight | 4.7 kg |
| Surface Treatment | Zinc-phosphate coating with oil seal |
| Sealing Interface | Compatible with 0634303928: O-RING |
Compatibility
This ENGINE CONNECTION is engineered for the ZF WG 100 Series, but its mounting geometry also suits several related transmission models. Verified compatibility includes the WG180, WG200, and WG210 gearboxes, as well as early variants of the WG150. The part interfaces directly with the 4651301014: HOUSING and the 4651301008: TRANSMISSION HOUSING to create a sealed driveline assembly. Always confirm your specific transmission serial number before ordering, as minor casting revisions exist across production years.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101004 | TRANSMISSION HOUSING | Main gearbox casing |
| 4651301014 | HOUSING | Intermediate adapter housing |
| 0634303928 | O-RING | Sealing ring for connection joint |
| 4651301008 | TRANSMISSION HOUSING | Rear transmission casing |
| 4651203002 | SCREEN SHEET | Oil filter mesh screen |
| 4651303005 | SCREEN SHEET | Secondary oil strainer |
| 0636101032 | CAP SCREW | Fastener for housing bolts |
| 0630361028 | SEALING CAP | Protective cover for ports |
| 0636304032 | SCREW PLUG | Threaded drain/fill plug |
| 0634303312 | O-RING | Seal for screw plug |
