Overview
The ZF 4656.183.049 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 160 series transmission. This assembly contains the necessary loose components required to secure and align internal housing sections during a rebuild or major repair. Positioned at the interface between the main transmission casing and the front/rear housing segments, this kit ensures proper sealing and structural integrity under high-torque conditions. The SKU 4656.183.049 is factory-matched to ZF’s exacting tolerances, eliminating guesswork during installation. When paired with a new TRANSMISSION HOUSING, this loose parts set restores the original clamping force and alignment precision.
Symptoms of Failure
When the ZF 4656.183.049 LOOSE PARTS begin to degrade, operators often notice three distinct failure modes. First, transmission oil weeping from the housing seam is a common indicator, as worn fasteners or gaskets lose their seal under pressure. Second, intermittent gear engagement hesitation occurs when the housing sections shift slightly, misaligning the shift rails. Third, abnormal vibration during load shifts signals that the front and rear housings are no longer rigidly coupled. Finally, metal debris in the oil pan may appear if loose parts fracture and circulate through the system. These symptoms typically worsen over 50-100 operating hours, making early replacement of the 4656.183.049 kit essential.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4656.183.049 |
| OEM Reference | ZF 4656.183.049 |
| Material | Case-hardened steel / Nitrile gasket |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions | 120 mm x 80 mm x 25 mm |
| Compatible Housing | HOUS.FRONT SECT & HOUSING REAR PART |
| Fastener Torque | 45 Nm (33 ft-lbs) |
Compatibility
This OEM genuine part is engineered for the ZF WG 160 series, but its application extends to several related models due to shared housing architecture. It is directly compatible with the WG 160, WG 180, and WG 200 transmissions. Additionally, it can be used in the WG 150 and WG 220 variants when paired with the correct HOUSING REAR PART. Always verify the housing casting number before ordering; the 4656.183.049 kit is not backward-compatible with pre-2005 WG series units without a housing adapter.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section of transmission housing |
| 4656201036 | HOUSING REAR PART | Rear housing segment |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing |
| 4656301148 | FIXING PLATE | Secures loose parts in position |
| 0636100817 | CAP SCREW | Fastener for housing joint |
| 4656301016 | SCREEN SHEET | Filter mesh for oil passage |
| 4656301017 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | Alternate fastener size |
Frequently Asked Questions
Q: Can I reuse the old loose parts from my WG160 rebuild?
A: ZF strongly advises against reusing the 4656.183.049 kit. These components are designed as single-use items due to torque-to-yield fasteners and crush-type gaskets. Reuse can lead to oil leaks and housing misalignment.
Q: Does this kit include the housing gasket?
A: Yes, the 4656.183.049 LOOSE PARTS set contains all necessary gaskets, O-rings, and fasteners for a complete seal between the HOUS.FRONT SECT and the HOUSING REAR PART. No additional sealing components are required.
Q: How do I verify this part fits my WG180 transmission?
A: Check the casting number on your existing housing. If it matches the WG160 series pattern (stamped near the oil fill port), the 4656.183.049 kit is compatible. For WG200 units, you may also need the HOUSING REAR PART adapter.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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