Overview
The ZF 4656.183.003 LOOSE PARTS kit is a critical service component designed specifically for the WG160 series transmission. This OEM genuine part contains the essential fasteners, seals, and small hardware required to secure and seal the main transmission housing assembly during a rebuild or overhaul. Positioned at the core of the gearbox, this kit ensures that the TRANSMISSION HOUSING remains properly mated to the HOUS.FRONT SECT and the HOUSING REAR PART. The SKU 4656.183.003 is your guarantee of a factory-spec fit, eliminating guesswork during transmission reassembly.
Symptoms of Failure
When the loose parts in this kit wear out or are lost during service, you will encounter specific operational issues. Look for these failure symptoms to identify a need for replacement:
- Transmission oil leaks at housing seams: Worn or missing bolts and seals cause fluid to weep from the joint between the front and rear housing sections.
- Gear slipping under load: Loose fasteners allow the HOUSING REAR PART to shift slightly, misaligning internal shafts and causing intermittent power loss.
- Abnormal vibration or driveline noise: Unsecured housing components create play that transmits as a low-frequency rumble or metallic chatter during acceleration.
- Difficult gear engagement: Misalignment from loose hardware prevents smooth shifting, requiring excessive force to select gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4656.183.003 |
| OEM Reference | ZF WG160 Series |
| Material | Steel (fasteners), Nitrile (seals) |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (packaged) | 180 x 120 x 40 mm |
| Kit Contents | Bolts, washers, dowel pins, sealing rings |
Compatibility
This genuine ZF loose parts kit is engineered for the WG160 transmission family. It is also compatible with closely related models including the WG180 and WG200 series, which share the same housing architecture. Always verify your transmission model tag before ordering. The kit directly interfaces with the TRANSMISSION HOUSING and both front and rear housing sections.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural body of the gearbox |
| 4656201075 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4656201036 | HOUSING REAR PART | Rear section of the transmission housing |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 4656301148 | FIXING PLATE | Secures internal components in place |
| 0636100817 | CAP SCREW | High-strength fastener for housing |
| 4656301016 | SCREEN SHEET | Oil filter screen for lubrication system |
| 4656301017 | SCREEN SHEET | Alternate oil filter screen variant |
| 0636100803 | CAP SCREW | Additional housing fastener |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG160 instead of buying this kit?
A: No. ZF specifies that all fasteners in the 4656.183.003 kit are single-use due to torque-to-yield requirements. Reusing them risks housing separation and oil leaks.
Q: Does this kit include the gaskets for the housing joint?
A: Yes. The kit contains all necessary seals and O-rings for the mating surfaces between the front and rear housing sections, along with the required cap screws and alignment pins.
Q: How do I confirm this part fits my WG180 transmission?
A: Check the transmission data plate for the model code. The WG180 uses the same housing bolt pattern as the WG160, making this kit a direct fit for both series.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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