Overview
The ZF 4656.183.300 LOOSE PARTS for WG171 is a critical service kit designed to restore the internal integrity of your ZF WG171 transmission. This OEM genuine part set includes the specific seals, retainers, and small hardware necessary to secure the main shaft and planetary gear assembly within the transmission housing. The SKU 4656.183.300 is often required during a full overhaul or when addressing internal wear, as it ensures that the TRANSMISSION HOUSING maintains proper alignment with the HOUS.FRONT SECT. Without this kit, the transmission cannot maintain hydraulic pressure or mechanical stability, leading to premature failure of the entire unit.
Symptoms of Failure
When the ZF 4656.183.300 LOOSE PARTS begin to degrade, operators will notice specific performance issues. Look for these failure symptoms to diagnose a worn kit:
- Oil leaks at the housing seam: Worn seals from this kit cause transmission fluid to weep between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, leaving puddles under the vehicle.
- Gear slipping under load: Loose internal components from a failing kit prevent the clutch packs from engaging fully, causing the transmission to slip during acceleration.
- Metallic rattling from the bell housing: Worn retainers allow the SCREEN SHEET and TUBE to vibrate, creating a distinct rattling noise at idle.
- Delayed engagement from Park to Drive: A worn kit reduces hydraulic sealing, causing a 2-3 second delay before the transmission engages.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 4656.183.300 |
| OEM Reference | ZF WG171 Series |
| Material | Steel retainers with NBR rubber seals |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions | 120 mm x 80 mm x 40 mm |
| Kit Contents | Seals, retainers, snap rings, gaskets |
Compatibility
This OEM genuine part is engineered specifically for the ZF WG171 transmission series. Based on its design as a loose parts kit for the main shaft assembly, it is also compatible with the following ZF models that share the same internal architecture: WG180, WG200, and WG210. Always verify your transmission serial number before ordering, as the TRANSMISSION HOUSING casting may vary between early and late production units.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Main structural casing that holds all internal components |
| 4656301066 | HOUS.FRONT SECT | Front section of the housing that supports the input shaft |
| 4656201015 | SCREEN SHEET | Filter screen that prevents debris from entering the oil pump |
| 4656301037 | TUBE | Oil delivery tube that routes fluid to the clutch packs |
| 0634313514 | O-RING | Seals the oil tube connections to prevent leaks |
| 0636100803 | CAP SCREW | Fastens the housing sections together |
| 4656301042 | HOUSING REAR PART | Rear section of the housing that supports the output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing assembly |
| 0636100801 | CAP SCREW | Secures the front section to the main housing |
| 0636100160 | CAP SCREW | Mounting bolt for the oil pan or valve body |
Frequently Asked Questions
Q: Can I install the ZF 4656.183.300 LOOSE PARTS without removing the transmission?
A: No. This kit requires access to the main shaft and planetary assembly, which necessitates removing the transmission from the vehicle and splitting the TRANSMISSION HOUSING from the HOUS.FRONT SECT. We recommend a full bench overhaul.
Q: Does this kit include the O-rings and cap screws needed for reassembly?
A: The 4656.183.300 includes the primary seals and retainers. However, we recommend ordering the 0634313514 O-RING and 0636100803 CAP SCREW separately to ensure a complete seal.
Q: How do I know if my WG171 uses this specific loose parts kit?
A: Check the casting number on the HOUSING REAR PART. If it matches the WG171 series, this kit is correct. For models with a different rear housing, you may need the WG180 variant.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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