Overview
The ZF 4644.130.137 ENGINE CONNECTION is a critical interface component designed specifically for the WG 200 Series transmission. This OEM genuine part serves as the mechanical link between the engine flywheel housing and the transmission bell housing, ensuring precise alignment and secure power transfer. As an integral element of the drivetrain assembly, the 4644.130.137 ENGINE CONNECTION absorbs torsional vibrations while maintaining structural integrity under heavy loads. This SKU is manufactured to ZF’s exacting tolerances, guaranteeing a perfect fit and long service life in demanding industrial applications such as construction vehicles, material handlers, and municipal trucks.
Symptoms of Failure
When the ZF 4644.130.137 ENGINE CONNECTION begins to wear, operators may notice several distinct failure indicators. Oil leaks at the engine-transmission interface are a common early sign, often caused by degraded sealing surfaces or micro-cracks in the connection plate. Abnormal gear engagement or slipping can occur when misalignment develops, leading to uneven load distribution across the transmission input shaft. Metallic rattling or knocking sounds during acceleration or deceleration typically indicate excessive play in the connection assembly. Additionally, vibration through the chassis at specific RPM ranges suggests the ENGINE CONNECTION has lost its damping capability, potentially damaging nearby components like the 4644105414: DISCONNECTION unit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4644.130.137 |
| Material | High-tensile steel alloy with corrosion-resistant coating |
| Weight | 3.2 kg (7.05 lbs) |
| Outer Diameter | 280 mm |
| Bolt Hole Pattern | 8 x M12 on 240 mm PCD |
| OEM Reference | ZF 4644.130.137 |
| Torque Rating | 1,200 Nm |
| Operating Temperature | -40°C to +120°C |
Compatibility
This ENGINE CONNECTION is engineered for the ZF WG 200 Series transmissions, including models such as WG180, WG200, and WG210. It is also compatible with select variants of the WG 150 Series when used with the appropriate 4644303409: OUTPUT FLANGE adapter. The part integrates directly with the 4644101222: TRANSMISSION HOUSING and is secured using 0636021083: HEXAGON SCREW fasteners. For retrofitting on older WG100 units, verify bell housing dimensions before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644105414 | DISCONNECTION | Clutch release mechanism for gear disengagement |
| 4644303409 | OUTPUT FLANGE | Connects transmission output to driveshaft |
| 0636021083 | HEXAGON SCREW | Fastener for mounting connection components |
| 4644101222 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4644301226 | TRANSMISSION HOUSING | Alternative housing variant for WG200 |
| 0730365067 | TYPE PLATE | Identification label for transmission model |
| 0631311009 | GROOVED STUD | Alignment pin for precise component positioning |
| 4644301298 | COVER PLATE | Protective shield for internal transmission parts |
| 0634306525 | O-RING | Seal preventing fluid leaks at joints |
| 0636305026 | SCREW PLUG | Threaded closure for inspection ports |
