Overview
The ZF 4656.183.305 LOOSE PARTS set is a critical service kit designed specifically for the WG 160 series transmission. This assembly contains the necessary loose components—including seals, retainers, and positioning elements—that secure internal sub-assemblies within the main gear case. When rebuilding or overhauling a WG160, replacing this SKU 4656.183.305 ensures that all loose hardware meets OEM tolerances, preventing premature wear on adjacent structures such as the TRANSMISSION HOUSING and the HOUS.FRONT SECT. This part sits at the interface between the main housing and the rear cover, acting as a locking mechanism for shafts and bearings.
Symptoms of Failure
- Intermittent gear slippage under load: Worn loose parts can allow the main shaft to shift axially, causing the transmission to drop out of gear during heavy acceleration.
- Oil seepage at the rear housing joint: Degraded seals within the 4656.183.305 kit lead to fluid migration between the HOUSING REAR PART and the main case, visible as wet streaks on the bell housing.
- Metallic rattling from the transmission tunnel: Loose retaining hardware allows internal components to vibrate against the HOUSING REAR SECTION, producing a distinct rattle at idle.
- Hard shifting or gear clash: Misalignment caused by worn loose parts prevents synchronizers from engaging cleanly, resulting in grinding noises during gear changes.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.183.305 |
| Material Composition | Steel alloy with zinc-plated finish |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4656.183.305 |
| Compatible Fasteners | CYLINDRICAL PIN (0631306816), FIXING PLATE (4656301148) |
| Required Hardware | CAP SCREW (0636100817), CAP SCREW (0636100803) |
| Included Screens | SCREEN SHEET (4656301016), SCREEN SHEET (4656301017) |
Compatibility
This genuine ZF loose parts kit is engineered primarily for the WG 160 series. It is also compatible with the WG 180 and WG 200 transmissions when used in conjunction with the correct housing variants. The 4656.183.305 set interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, making it suitable for both on-highway truck applications and heavy-duty off-road equipment. Always verify your transmission model suffix before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101055 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201076 | HOUSING REAR PART | Rear cover for output shaft support |
| 4656298047 | HOUSING REAR SECTION | Extended rear housing for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Retainer plate for bearing preload |
| 0636100817 | CAP SCREW | M10x30 hex bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return line |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8x25 hex bolt for cover plate |
Frequently Asked Questions
Q: Can I use the 4656.183.305 kit on a WG180 transmission?
A: Yes, this kit is cross-compatible with WG180 and WG200 models, provided the main housing and front section are from the same series. Always check the TRANSMISSION HOUSING part number for confirmation.
Q: What is the typical service interval for replacing these loose parts?
A: ZF recommends replacing the 4656.183.305 kit during any major overhaul or when symptoms like oil seepage or gear slippage appear. In severe-duty cycles, inspect every 500,000 km.
Q: Are the cap screws included in this kit?
A: No, the 4656.183.305 kit contains only the loose hardware and seals. You will need to order CAP SCREW (0636100817) and CAP SCREW (0636100803) separately.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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