Overview
The ZF 4657.130.035 ENGINE CONNECTION is a critical OEM genuine coupling component designed to link the transmission assembly directly to the engine bellhousing on WG190, WG210, and WG230 series units. This precision-machined part ensures correct axial alignment and torque transfer between the power source and the gearbox. The SKU 4657.130.035 serves as the primary interface point, absorbing vibration and maintaining a sealed connection to prevent contamination ingress. When installed alongside the TRANSMISSION HOUSING, it forms the foundational structural loop of the entire drivetrain assembly.
Symptoms of Failure
- Engine-to-transmission oil seepage: A worn 4657.130.035 often causes fluid to weep from the mating flange, leaving visible residue on the bellhousing exterior during routine inspections.
- Abnormal driveline vibration under load: Degradation of the connection surface leads to misalignment, producing a low-frequency shudder that intensifies during acceleration or hill climbs.
- Difficulty engaging or holding gears: When this ENGINE CONNECTION loses its structural integrity, the input shaft can shift fractionally, causing delayed engagement and intermittent gear slip in WG210 units.
- Metallic knocking from the bellhousing area: Excessive play between the connection and the HOUS.FRONT SECT produces a distinct tapping noise at idle that worsens with RPM changes.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.130.035 |
| Material | High-tensile cast iron with corrosion-resistant coating |
| Overall Diameter | 185 mm |
| Flange Thickness | 22 mm |
| Bolt Hole Pattern | 6x M12 on 150 mm PCD |
| Dry Weight | 2.8 kg |
| OEM Reference | ZF 4657.130.035 |
Compatibility
This ENGINE CONNECTION is engineered specifically for the ZF WG series powershift transmissions. It is a direct fit for the WG190, WG210, and WG230 models commonly used in heavy-duty construction and agricultural machinery. The part also interfaces with select WG180 and WG200 variants where the bellhousing pattern matches the 150 mm PCD specification. For full assembly integrity, this component must be paired with the HOUSING REAR PART and secured using the CYLINDRICAL PIN for precise dowel alignment during installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear cluster support |
| 4657201027 | HOUS.FRONT SECT | Forward housing section mating to engine connection |
| 4657201020 | HOUSING REAR PART | Rear casing enclosing output shaft assembly |
| 0631306792 | CYLINDRICAL PIN | Dowel pin for precise alignment of housing halves |
| 0636100801 | CAP SCREW | M12 fastener for securing housing flanges |
| 4656301148 | FIXING PLATE | Locking plate to prevent fastener loosening |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit protection |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump return line |
| 0636100803 | CAP SCREW | M10 bolt for accessory bracket mounting |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply tube to clutch pack |
Frequently Asked Questions
Q: Can the 4657.130.035 ENGINE CONNECTION be reused after removal?
A: ZF recommends replacing this OEM genuine part with a new unit whenever the transmission is separated from the engine, as the sealing surface and bolt hole tolerances degrade after initial torque cycling.
Q: Does this part require special tools for installation?
A: Yes, a calibrated torque wrench set to 85 Nm is essential for the six M12 bolts, and a soft-faced mallet should be used to seat the connection against the HOUS.FRONT SECT without damaging the mating face.
Q: How does a failing ENGINE CONNECTION affect transmission temperature?
A: A worn 4657.130.035 allows hot oil to bypass the cooling circuit at the bellhousing interface, often causing a 10-15°C rise in sump temperature during sustained operation in WG230 models.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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