Overview
The ZF 4656.183.098 LOOSE PARTS for WG160 is a critical internal component set designed for the WG 160 series transmission. This genuine OEM assembly includes the necessary fasteners, seals, and positioning elements required to secure and align the main housing sections during rebuild or repair. Specifically, this kit interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper gear train alignment. The SKU 4656.183.098 is often ordered as a preventative maintenance kit when performing a full overhaul, as it contains the loose hardware that cannot be reused after disassembly.
Symptoms of Failure
- Transmission fluid seepage at housing joints: When the loose parts (gaskets and seals) degrade, you will notice oil weeping between the HOUSING REAR PART and the main body, leading to low fluid levels.
- Gear slippage under load: Worn locating pins or bolts within the 4656.183.098 set can cause micro-movement of the housing sections, resulting in misaligned shafts and intermittent gear engagement.
- Abnormal vibration during shifting: Loose fasteners allow the HOUSING REAR PART to shift slightly, creating driveline vibration that worsens at highway speeds.
- Difficulty engaging reverse gear: A common long-tail symptom is hard shifting into reverse, caused by the loss of clamping force from the loose parts kit on the rear housing assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.183.098 |
| Material Composition | Steel alloy with zinc plating (fasteners); Nitrile rubber (seals) |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 40 mm |
| OEM Reference | ZF Friedrichshafen AG |
| Application | WG 160 Series Loose Hardware Kit |
Compatibility
This genuine ZF 4656.183.098 loose parts kit is primarily engineered for the WG 160 transmission series. However, due to shared housing architecture, it is also compatible with the WG 180 and WG 200 models when used in conjunction with the correct TRANSMISSION HOUSING. It is not recommended for the WG 120 series without verifying bolt patterns against the HOUS.FRONT SECT specifications. Always cross-reference your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201036 | HOUSING REAR PART | Rear housing section for output shaft |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant for WG160 |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowel holes |
| 4656301148 | FIXING PLATE | Secures bearing retention in housing |
| 0636100817 | CAP SCREW | M10 bolt for housing flange connection |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for pump intake |
| 0636100803 | CAP SCREW | M8 bolt for cover plate attachment |
Frequently Asked Questions
Q: Can I reuse the original bolts from my old housing when installing this 4656.183.098 kit?
A: No. ZF specifies that all fasteners in this loose parts kit are single-use torque-to-yield bolts. Reusing them risks improper clamping force and subsequent oil leaks.
Q: Does this kit include the seals for the HOUSING REAR PART?
A: Yes. The 4656.183.098 contains all necessary O-rings and gaskets for the rear housing interface, though the main rear housing seal is sold separately as part number 4472239179.
Q: How do I verify this kit fits my WG160 transmission?
A: Check the casting number on your TRANSMISSION HOUSING. If it matches the WG160 suffix, this kit is compatible. For WG180 or WG200 units, you may also need the HOUS.FRONT SECT adapter plate.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
