Overview
The ZF 4657.130.038 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG160 and WG190 transmission series. This precision-engineered part serves as the mechanical link between the engine flywheel housing and the transmission bell housing, ensuring perfect axial alignment and torque transfer during operation. As a genuine ZF part, SKU 4657.130.038 guarantees factory tolerances and material specifications that aftermarket alternatives cannot replicate. This engine connection component works in concert with the TRANSMISSION HOUSING to maintain structural integrity under heavy load conditions.
Symptoms of Failure
- Transmission oil leaks at engine-transmission interface – When the 4657.130.038 engine connection seal surface degrades, pressurized transmission fluid escapes between mating surfaces, leaving visible puddles under the vehicle.
- Abnormal gear engagement noise – A worn engine connection causes misalignment, producing a distinct metallic clatter or grinding sound when shifting between forward and reverse gears.
- Vibration during acceleration – Deterioration of this part leads to axial play, transmitting engine harmonics through the driveline that intensify under load between 1200-1800 RPM.
- Premature bearing wear in transmission – A failing engine connection forces the HOUS.FRONT SECT to absorb abnormal stresses, accelerating bearing failure and reducing service life.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4657.130.038 |
| Material | High-grade cast iron with corrosion-resistant coating |
| Overall Diameter | 285 mm |
| Bolt Hole Pattern | 8-hole, 10.9-grade threaded inserts |
| Weight | 4.2 kg (9.26 lbs) |
| Seal Type | Integrated PTFE lip seal |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.130.038 |
Compatibility
This genuine ZF 4657.130.038 engine connection is engineered for direct fitment on the WG160 and WG190 transmission platforms. It is also compatible with the WG180 and WG200 series when used with the appropriate HOUSING REAR PART adapter kit. The part interfaces seamlessly with both the HOUSING REAR PART (4472239179) and the front section housing to create a sealed, vibration-dampened connection. Applications include municipal buses, heavy-duty trucks, and industrial machinery utilizing ZF WG-series automatic transmissions from 1998 onward.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201036 | HOUSING REAR PART | Rear section housing for output shaft |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant for WG190 |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 4656301148 | FIXING PLATE | Secures engine connection to housing |
| 0636100817 | CAP SCREW | M10 bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Filter mesh for oil return passage |
| 4656301017 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 0636100803 | CAP SCREW | M8 bolt for accessory mounting |
Frequently Asked Questions
Q: Can the 4657.130.038 engine connection be installed without removing the transmission?
No. This part requires transmission removal to access the bell housing bolts. We recommend replacing the HOUS.FRONT SECT gasket simultaneously to prevent future leaks.
Q: What is the typical service interval for this engine connection on WG160 transmissions?
Under normal operating conditions, the 4657.130.038 should be inspected every 250,000 km or 5 years. Signs of corrosion or seal hardening indicate immediate replacement is necessary.
Q: Does this part include mounting hardware?
No. The engine connection is supplied as a standalone component. You will need to order CAP SCREW (0636100817) and FIXING PLATE (4656301148) separately for complete installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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