Overview
The ZF 4644.130.228 ENGINE CONNECTION is a critical OEM genuine interface component designed for the WG 200 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. As a factory-specified replacement, the SKU 4644.130.228 guarantees exact fitment and material integrity to maintain driveline stability. When installed alongside the 4644101216 TRANSMISSION HOUSING and the 4644301223 TRANSMISSION HOUSING, this engine connection completes the structural foundation of the transmission assembly.
Symptoms of Failure
When the ZF 4644.130.228 ENGINE CONNECTION begins to wear or fatigue, operators typically notice three to four distinct failure indicators. First, persistent oil seepage at the engine-transmission interface often appears, caused by degraded sealing surfaces that allow lubricant to escape under pressure. Second, intermittent gear engagement hesitation may occur as misalignment stresses the input shaft bearings. Third, abnormal vibration during low-speed maneuvering becomes apparent, particularly when the connection flange develops hairline cracks. Fourth, visible fretting corrosion or metal debris in the transmission oil pan signals material breakdown of the connection surface. These symptoms directly impact driveline reliability and should prompt immediate inspection.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4644.130.228 |
| OEM Reference | ZF 4644.130.228 (Genuine) |
| Material | High-strength cast iron alloy |
| Weight | Approx. 4.2 kg (9.3 lbs) |
| Outer Diameter | 280 mm |
| Bolt Hole Pattern | 8-hole, 120 mm PCD |
| Surface Treatment | Corrosion-resistant phosphate coating |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF 4644.130.228 ENGINE CONNECTION is primarily compatible with the WG 200 Series transmissions, including models WG200, WG180, and WG210 variants. It also fits select WG160 configurations where the engine interface dimensions match. The part integrates directly with the 0730365067 TYPE PLATE for proper identification and the 0631311009 GROOVED STUD for secure mounting. Always verify your transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101216 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4644301223 | TRANSMISSION HOUSING | Secondary housing for clutch assembly |
| 0730365067 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Alignment dowel for housing mating |
| 4644303060 | COVER PLATE | Access cover for inspection port |
| 4644303061 | COVER PLATE | Alternate cover plate variant |
| 0634306525 | O-RING | Hydraulic seal for fluid passages |
| 0636305026 | SCREW PLUG | Drain/fill port sealing plug |
| 4644301279 | SCREEN SHEET | Filter mesh for oil intake |
| 4644301088 | SEALING CAP | Protective cap for unused ports |
