Overview
The ZF 4657.130.040 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG 210 Series transmission family. This precision-engineered part serves as the primary mechanical and hydraulic link between the engine flywheel housing and the transmission bell housing, ensuring correct alignment, torque transfer, and oil sealing at the driveline junction. As a factory-specified replacement, SKU 4657.130.040 guarantees exact fitment and long service life when paired with other genuine ZF components such as the 4657101033: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT.
Symptoms of Failure
When the ZF 4657.130.040 ENGINE CONNECTION begins to wear or sustain damage, operators typically encounter several distinct failure modes. Oil seepage at the engine-to-transmission interface is the most common early indicator, often appearing as a slow drip after extended operation. Abnormal driveline vibration during acceleration signals misalignment caused by a distorted connection plate. Difficulty engaging or holding gear ranges can occur if the connection allows axial play, disrupting hydraulic pressure. Finally, visible cracking or corrosion around the mounting bolt holes indicates imminent structural failure requiring immediate replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.130.040 |
| Material | High-grade cast aluminum alloy (GG-AlSi9Cu3) |
| Overall Length | 245 mm |
| Overall Width | 180 mm |
| Bolt Hole Pattern | 6x M12 on 140 mm PCD |
| Net Weight | 1.85 kg |
| Sealing Surface Finish | Ra 0.8 µm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.130.040 (Genuine) |
Compatibility
This ENGINE CONNECTION is engineered for the ZF WG 210 Series, but its mounting geometry and bolt pattern also make it suitable for several related models. Verified compatibility includes the WG180, WG200, and WG210 transmissions used in medium-duty trucks, buses, and off-highway equipment. For complete assembly integrity, always install this part alongside the 4657201012: HOUSING REAR PART and secure it with the 0631306792: CYLINDRICAL PIN for precise alignment. Confirm your transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201027 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657201012 | HOUSING REAR PART | Rear section of transmission housing |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for connection plate |
| 4656301148 | FIXING PLATE | Retention bracket for oil lines |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for oil circuit |
| 0636100803 | CAP SCREW | Fastener for housing sections |
| 4681301040 | OIL FEED.HOUSG. | Oil supply housing for lubrication |
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