Overview
The ZF 4656.183.326 LOOSE PARTS for WG160 is a critical service kit designed to restore the internal integrity of your ZF WG160 series transmission. This OEM genuine part, identified by SKU 4656.183.326, contains the essential loose hardware and small components that secure and align the main transmission housing sections. It sits directly within the main casing assembly, acting as the fastening and positioning interface between the TRANSMISSION HOUSING and the HOUS.FRONT SECT. Without this precise kit, the structural stability of the gearbox is compromised, leading to misalignment and accelerated wear on internal components.
Symptoms of Failure
- Transmission oil seepage at housing joints: When the loose parts in this kit degrade or are lost, the seal between the HOUSING REAR PART and the main body fails, causing visible oil leaks around the mating surfaces.
- Gear slipping under load: Worn fasteners or missing positioning pins allow the HOUSING REAR SECTION to shift slightly, resulting in intermittent gear engagement and power loss during heavy operation.
- Abnormal vibration or driveline noise: A loose housing assembly due to degraded hardware creates excessive play, transmitting harsh vibrations through the chassis and producing a distinct rattle at specific RPM ranges.
- Difficulty shifting gears: Misalignment caused by failing loose parts can bind the shift rails, making gear selection stiff or imprecise, especially in cold operating conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 4656.183.326 |
| Component Type | Loose Parts Kit (Fasteners, Pins, Hardware) |
| Material | Hardened Steel / Alloy Steel (Corrosion-Resistant Coating) |
| Estimated Weight | 0.45 kg (1.0 lb) |
| OEM Reference | ZF 4656.183.326 |
| Compatible Series | WG 160 |
Compatibility
This OEM genuine part is specifically engineered for the ZF WG160 transmission series. While its primary application is the WG160, the same loose parts configuration is often shared with the WG180 and WG200 models due to common housing architecture. Always verify fitment against your specific transmission serial number. The kit integrates directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101055 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201076 | HOUSING REAR PART | Rear housing section for output bearing retention |
| 4656298047 | HOUSING REAR SECTION | Complete rear casing segment for final drive |
| 0631306816 | CYLINDRICAL PIN | Precision alignment pin for housing doweling |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 0636100817 | CAP SCREW | High-tensile bolt for housing clamping |
| 4656301016 | SCREEN SHEET | Filter screen for oil sump protection |
| 4656301017 | SCREEN SHEET | Secondary filter screen for hydraulic circuit |
| 0636100803 | CAP SCREW | M10 bolt for accessory mounting points |
Frequently Asked Questions
Q: Can I reuse the old loose parts from my ZF WG160 instead of buying this kit?
A: No. ZF engineering specifies that all fasteners and pins in the 4656.183.326 kit are single-use due to torque-to-yield requirements. Reusing them risks housing misalignment and catastrophic transmission failure.
Q: Does this kit include the bolts for the rear housing section?
A: Yes. The 4656.183.326 LOOSE PARTS kit contains all necessary cap screws and cylindrical pins to secure the HOUSING REAR PART and HOUSING REAR SECTION to the main transmission housing.
Q: How do I verify this part fits my specific transmission?
A: Check the transmission model plate on the side of the housing. The WG160 series is clearly stamped. For cross-reference, compare your existing hardware to the components listed in the Related Components table above.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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