Overview
The ZF 4657.130.085 ENGINE CONNECTION is a critical interface component designed specifically for the WG 190 Series transmission family. This OEM genuine part serves as the primary link between the transmission assembly and the engine bellhousing, ensuring precise alignment and secure power transfer. The SKU 4657.130.085 sits at the front of the transmission, directly mating with the flywheel housing to absorb torsional loads and maintain driveline integrity. Without this component, the transmission cannot be properly mounted, making it essential for any rebuild or replacement of the front section. This part is often replaced in conjunction with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure complete structural integrity.
Symptoms of Failure
When the ZF 4657.130.085 ENGINE CONNECTION begins to wear, operators will notice several distinct failure modes. Oil leaks at the engine-to-transmission interface are the most common symptom, often appearing as drips near the bellhousing seam. Gear slipping under load occurs when the connection loses its precise alignment, causing the input shaft to wobble. Vibration during acceleration is another clear indicator, as a worn connection cannot dampen driveline harmonics. Finally, difficulty engaging or disengaging the transmission from the engine may signal that the mounting flange has warped or cracked. These symptoms typically worsen over time, leading to catastrophic failure if the part is not replaced promptly.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.130.085 |
| Material | High-grade cast iron with corrosion-resistant coating |
| Weight | 2.8 kg (6.2 lbs) |
| Overall Length | 185 mm |
| Mounting Bolt Pattern | 6-hole, 120 mm PCD |
| OEM Reference | ZF 4657.130.085 (Genuine) |
| Torque Specification | 85 Nm (63 ft-lbs) |
Compatibility
This ENGINE CONNECTION is primarily designed for the ZF WG 190 Series transmissions, including models WG190, WG191, and WG192. It is also compatible with the WG180 and WG200 series when used with the appropriate adapter kit. The part interfaces directly with the HOUSING REAR PART (4657201103) and the HOUSING REAR PART (4472239184) to complete the main casing assembly. Always verify your transmission model number before ordering, as variations exist between early and late production units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101051 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201151 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201103 | HOUSING REAR PART | Rear casing for output assembly |
| 4472239184 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise positioning |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Locks connection bolts in place |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty mounting |
Frequently Asked Questions
Q: Can I reuse the old bolts when installing the 4657.130.085 ENGINE CONNECTION?
A: No. ZF recommends replacing all fasteners, including the CAP SCREW (0636100801) and CAP SCREW (0636100803), as they stretch during initial torque and lose clamping force.
Q: Does this part require any special tools for installation?
A: Yes. You will need a torque wrench capable of 85 Nm and a CYLINDRICAL PIN (0631306816) for alignment. The FIXING PLATE (4656301148) must also be installed to prevent bolt rotation.
Q: How do I know if my WG190 needs the 4657.130.085 or a different engine connection?
A: Check the casting number on your existing part. If it matches 4657.130.085, this is the correct replacement. For earlier WG180 models, you may need an adapter plate.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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