Overview
Within the robust architecture of the ZF WG 190 series, the ZF 4657.183.295 LOOSE PARTS kit serves as a critical service package for maintaining internal clearance and component retention. This genuine OEM part, identified by SKU 4657.183.295, includes the necessary fasteners, spacers, and positioning elements that secure the TRANSMISSION HOUSING assembly to the HOUS.FRONT SECT and the HOUSING REAR PART. Without this specific loose parts set, the structural integrity of the gear train is compromised, leading to misalignment of the HOUSING REAR SECTION.
Symptoms of Failure
When the components within the 4657.183.295 kit degrade, operators will notice distinct operational anomalies. Persistent oil seepage at the housing joint lines is a primary indicator, as the included seals and gaskets lose their compression. Another common failure symptom is audible gear rattle or clunking during load shifts, caused by excessive axial play in the main shaft. Technicians should also watch for erratic shift timing or delayed engagement, which occurs when loose fasteners allow the valve body to shift relative to the housing. Finally, vibration at highway speeds often points to worn locating pins within this loose parts set.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4657.183.295 |
| Kit Contents | Fasteners, Dowels, Seals, Spacers |
| Material Composition | Steel (Grade 10.9) / Nitrile Rubber |
| Estimated Weight | 0.85 kg (1.87 lbs) |
| Thread Pitch (Primary) | M10 x 1.5 |
| OEM Reference | ZF WG 190 Service Kit |
Compatibility
This genuine loose parts kit is engineered specifically for the ZF WG 190 series of heavy-duty transmissions. While primarily designed for the WG190, the 4657.183.295 kit also demonstrates cross-compatibility with the WG180 and WG200 models, provided the housing configurations match. It is not suitable for the older WG120 or WG150 series without modification. Always verify the housing casting numbers against the TRANSMISSION HOUSING to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201168 | HOUSING REAR PART | Rear section housing for output flange |
| 4657298101 | HOUSING REAR SECTION | Extended rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for suction line |
| 0636100803 | CAP SCREW | M12 bolt for heavy-duty clamping |
Frequently Asked Questions
Q: Can I reuse the old fasteners from my WG190 instead of buying the 4657.183.295 kit?
A: No. ZF specifies that all fasteners in this loose parts kit are torque-to-yield and must be replaced during any housing disassembly to prevent joint failure and oil leaks.
Q: Does this kit include the gaskets for the housing sections?
A: Yes. The 4657.183.295 LOOSE PARTS set contains the necessary sealing elements for the HOUS.FRONT SECT and HOUSING REAR PART interfaces.
Q: How do I verify that this part fits my specific transmission?
A: Check the casting number on your TRANSMISSION HOUSING. If it matches the WG190 series suffix, this kit is the correct service replacement.
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Phone: +86 158 2286 3467 |
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