Overview
The ZF 4657.130.052 ENGINE CONNECTION is a critical OEM genuine interface component designed specifically for the WG191 and WG211 transmission series. This part serves as the mechanical link between the engine flywheel housing and the transmission bell housing, ensuring precise alignment and secure torque transfer during operation. As an original ZF-manufactured part, SKU 4657.130.052 guarantees exact fitment and durability under high-stress industrial conditions. It works in concert with the 4657120005: PRESSURE REGULATOR to maintain stable hydraulic pressure within the assembly, while the 0501211384: VALVE controls fluid routing adjacent to this connection point.
Symptoms of Failure
When the ZF 4657.130.052 ENGINE CONNECTION begins to wear, operators may notice distinct performance issues. Oil leaks at the engine-to-transmission interface are the most common early indicator, often appearing as drips near the bell housing seam. Gear slipping under load occurs when the connection loses structural integrity, causing misalignment between the engine and transmission shafts. Vibration during acceleration becomes noticeable as the mounting surface degrades, leading to uneven power delivery. Difficulty engaging gears may also develop, particularly in cold-start conditions, as the connection’s dimensional stability is compromised.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.130.052 |
| Material | High-grade cast iron with corrosion-resistant coating |
| Overall Length | 185 mm |
| Flange Diameter | 210 mm |
| Bolt Hole Pattern | 6 x M12 on 170 mm PCD |
| Weight | 2.8 kg |
| Sealing Surface | Precision ground, Ra 0.8 μm finish |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF ENGINE CONNECTION is primarily designed for the WG191 and WG211 transmission series. It is also compatible with earlier WG180 and WG200 models when used with the appropriate adapter kit. The part interfaces directly with the 0630532183: INDENTED RING for secure retention and works alongside the 4656306145: PISTON which actuates clutch packs within the same assembly. For full system integrity, always verify your transmission’s serial number against ZF’s compatibility chart before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Maintains hydraulic pressure stability in the valve body |
| 0501211384 | VALVE | Controls fluid flow direction within the transmission |
| 0630532183 | INDENTED RING | Provides positive locking for shaft retention |
| 4656306145 | PISTON | Actuates clutch pack engagement |
| 0732042767 | COMPRESSION SPRING | Provides return force for valve spools |
| 0631612064 | SET SCREW | Secures adjustment points in the housing |
| 0631610026 | SET SCREW | Locks threaded connections against vibration |
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657301130 | HOUS.FRONT SECT | Forward section of the transmission housing |
| 4657301131 | HOUSING REAR PART | Rear section of the transmission housing |
Frequently Asked Questions
Q: Can the ZF 4657.130.052 ENGINE CONNECTION be reused after removal?
A: ZF recommends replacing this part with a new OEM unit whenever the transmission is separated from the engine. The sealing surface can become distorted during removal, compromising future leak prevention.
Q: What torque specification should be used for the mounting bolts?
A: For the six M12 bolts, apply 85 Nm (63 ft-lbs) in a cross-tightening sequence. Always use new bolts and apply thread locker to prevent loosening under vibration.
Q: Does this part require any special tools for installation?
A: A standard socket set and torque wrench are sufficient. However, a transmission jack is strongly advised to support the weight of the assembly during alignment to avoid damaging the connection surface.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
