Overview
The ZF 4657.130.086 ENGINE CONNECTION is a critical OEM genuine coupling component designed to bridge the transmission assembly to the engine bell housing in heavy-duty ZF drivelines. This precision-machined part, identified by SKU 4657.130.086, sits at the forward interface of the transmission, ensuring correct axial alignment and torque transfer between the engine output shaft and the transmission input. It is a direct-fit replacement for units in the BP 210, BP 230, WG 160, WG 190, and WG 210 series, and it works in concert with the 4656101055: TRANSMISSION HOUSING to maintain structural integrity under high-load conditions.
Symptoms of Failure
- Oil seepage at the engine-transmission joint: A worn or cracked 4657.130.086 ENGINE CONNECTION often allows transmission fluid to escape, leaving visible drips under the bell housing area.
- Abnormal driveline vibration during acceleration: When this coupling loses its dimensional tolerance, misalignment causes noticeable shuddering or humming, especially in WG190 and WG210 applications.
- Difficulty engaging gears or gear slippage: A degraded connection can shift the transmission input position, leading to incomplete clutch engagement and intermittent power loss.
- Metallic rattling from the front of the transmission: Loose fitment between the engine connection and the 4656201075: HOUS.FRONT SECT produces a distinct noise during idle or low-speed operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.130.086 |
| Material | High-strength cast iron (GGG-40) |
| Weight | 3.2 kg (7.05 lbs) |
| Outer Diameter | 210 mm |
| Bolt Hole Pattern | 6 x M12 on 180 mm PCD |
| OEM Reference | ZF 4657.130.086 |
| Surface Finish | Phosphated & oiled |
Compatibility
This ENGINE CONNECTION is engineered for ZF’s medium-duty and heavy-duty transmission families. It is a confirmed fit for the WG 160, WG 190, and WG 210 series, as well as the BP 210 and BP 230 models. While not officially listed for the WG180 or WG200, the mounting geometry is shared across the WG platform, making it a viable replacement in those units when paired with the 4656201076: HOUSING REAR PART and the 4656298047: HOUSING REAR SECTION. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101055 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4656201075 | HOUS.FRONT SECT | Forward section of the transmission housing |
| 4656201076 | HOUSING REAR PART | Rear portion of the main housing |
| 4656298047 | HOUSING REAR SECTION | Extended rear housing segment |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Secures the connection to the housing |
| 0636100817 | CAP SCREW | Fastener for the fixing plate |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil intake |
| 4656301017 | SCREEN SHEET | Secondary mesh filter for return line |
| 0636100803 | CAP SCREW | Mounting bolt for housing sections |
Frequently Asked Questions
Q: Can I use the 4657.130.086 on a ZF WG180 transmission?
A: While the WG180 is not explicitly listed, the ENGINE CONNECTION shares the same bolt pattern and pilot diameter as the WG190 and WG210. It is compatible provided your WG180 uses the standard SAE 3 bell housing interface.
Q: What torque should I apply to the bolts securing this part?
A: ZF recommends tightening the M12 bolts to 80 Nm (59 ft-lbs) in a crosswise pattern. Always use new 0636100817: CAP SCREW fasteners during installation to prevent loosening.
Q: Is this part interchangeable with the older ZF 4657.130.085?
A: The 4657.130.086 supersedes the .085 variant with an improved phosphated coating for corrosion resistance. It is a direct drop-in replacement with identical dimensions.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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