Overview
The ZF 4656.130.051 ENGINE CONNECTION is a critical OEM genuine component designed specifically for the WG 160 Series transmission. This part serves as the primary mechanical interface between the engine flywheel housing and the transmission bell housing, ensuring precise alignment and torque transfer during operation. As a genuine ZF part, SKU 4656.130.051 guarantees factory tolerances and metallurgical integrity, which are essential for maintaining drivetrain efficiency in heavy-duty industrial applications. When installed correctly, this engine connection plate prevents axial misalignment that can lead to premature bearing wear and gear tooth damage.
Symptoms of Failure
When the ZF 4656.130.051 ENGINE CONNECTION begins to fail, operators typically notice oil seepage at the engine-transmission interface due to compromised sealing surfaces. Another common symptom is intermittent gear engagement difficulty during shifting, caused by slight misalignment of the input shaft. You may also experience abnormal vibration at specific RPM ranges, particularly under load, which indicates the connection plate has warped or cracked. Finally, metal debris in the transmission oil pan can signal that the engine connection has fractured, allowing metallic particles to circulate through the hydraulic system.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.130.051 |
| Material | High-grade cast iron (GGG-40) |
| Overall Diameter | 380 mm |
| Thickness | 18 mm |
| Weight | 4.2 kg |
| OEM Reference | ZF 4656.130.051 |
| Bolt Hole Pattern | 8x M12 on 320 mm PCD |
| Surface Finish | Ground flatness ≤ 0.05 mm |
Compatibility
This genuine ZF engine connection is primarily designed for the WG 160 Series transmission, but it also fits select models in the WG 180 and WG 200 families when used with the appropriate adapter kit. The part is compatible with ZF transmissions installed in municipal buses, fire trucks, and medium-duty construction vehicles. For exact fitment verification, always cross-reference your transmission serial number with the OEM parts catalog. The 4656.130.051 is not interchangeable with earlier WG 120 series plates due to different bolt patterns.
Related Components
During installation, the 4656.130.051 ENGINE CONNECTION works in concert with several adjacent ZF parts. The TRANSMISSION HOUSING (4656101070) provides the structural envelope, while the HOUS.FRONT SECT (4656201085) and HOUSING REAR PART (4656201089) complete the assembly. For full drivetrain integrity, the HOUSING REAR SECTION (4656298057) should also be inspected during any major service.
| Part Number | Name | Function |
|---|---|---|
| 4656101070 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4656201085 | HOUS.FRONT SECT | Front section housing input shaft |
| 4656201089 | HOUSING REAR PART | Rear section supporting output shaft |
| 4656298057 | HOUSING REAR SECTION | Extended rear housing for PTO mounts |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Secures oil filter assembly |
| 0636100817 | CAP SCREW | M10x25 bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for suction |
| 0636100803 | CAP SCREW | M8x20 bolt for cover plate |
Frequently Asked Questions
Q: Can the 4656.130.051 be reused after a transmission rebuild?
A: ZF recommends replacing this engine connection plate during any major overhaul, as thermal cycling can cause microscopic warping that affects sealing.
Q: What torque specification is required for the mounting bolts?
A: The eight M12 bolts should be tightened to 85 Nm in a cross-pattern sequence, using thread locker compound for vibration resistance.
Q: Does this part fit the ZF WG 180 transmission without modification?
A: Direct fitment is possible only for WG 180 units manufactured after 2018; earlier models require the 4656201085 adapter housing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
