Overview
The ZF 4657.183.012 LOOSE PARTS set is a critical service kit designed specifically for the WG 210 series transmission. This assembly contains the essential loose hardware and fasteners required to secure internal components during a rebuild or major repair. Positioned within the main casing, these parts ensure that the TRANSMISSION HOUSING and its adjoining sections remain properly torqued and aligned under high-load conditions. The SKU 4657.183.012 is an OEM genuine part, guaranteeing exact fitment and metallurgical standards for your ZF drivetrain.
Symptoms of Failure
- Transmission fluid seepage at housing joints: When the loose hardware fatigues, you may notice oil weeping between the HOUS.FRONT SECT and the main body, leading to gradual fluid loss.
- Audible rattling or vibration during gear engagement: Worn or missing fasteners allow the HOUSING REAR PART to shift slightly, creating metallic noise under load.
- Intermittent gear slippage or delayed shifts: Loose components can misalign the valve body or clutch pack, causing erratic hydraulic pressure and poor shift quality.
- Increased play in the driveline: A failing CYLINDRICAL PIN within the set can cause rotational slack, felt as a clunk when accelerating or decelerating.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4657.183.012 |
| OEM Reference | ZF 4657.183.012 |
| Material Composition | Case-hardened steel & zinc-plated alloy |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| Thread Pitch | M8 x 1.25 (primary fasteners) |
| Torque Specification | 25 Nm (18.4 lb-ft) |
Compatibility
This LOOSE PARTS kit is engineered for the ZF WG 210 series but also shares cross-compatibility with earlier WG 180 and WG 200 models that utilize the same modular housing architecture. It is a direct replacement for any transmission where the TRANSMISSION HOUSING and HOUS.FRONT SECT are joined by these specific fasteners. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201027 | HOUS.FRONT SECT | Front section housing the pump and converter |
| 4657201012 | HOUSING REAR PART | Rear casing supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Secures internal harness or valve body |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary filter screen for debris |
| 0636100803 | CAP SCREW | Alternate thread-length fastener |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel for bearings |
Frequently Asked Questions
Q: Can I reuse the original fasteners instead of buying this LOOSE PARTS kit?
A: It is not recommended. ZF specifies that these fasteners are torque-to-yield and should be replaced during any housing disassembly to prevent joint fatigue and oil leaks.
Q: Does this kit include the CYLINDRICAL PIN for alignment?
A: Yes, the 4657.183.012 set contains the CYLINDRICAL PIN along with all necessary cap screws and washers for a complete rebuild of the WG210 housing assembly.
Q: Will this part fit a ZF WG180 transmission?
A: The WG180 and WG200 share the same housing bolt pattern, so this kit is compatible. However, always cross-reference your transmission model tag with the OEM part number to confirm.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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