Overview
The ZF 4657.183.236 LOOSE PARTS kit is a critical service component for the WG 190 Series transmission, specifically designed to replace the internal loose hardware and fasteners that secure key assemblies within the gearbox. This OEM genuine part, identified by SKU 4657.183.236, includes the necessary bolts, pins, and retainers that hold the TRANSMISSION HOUSING together with the HOUS.FRONT SECT and the HOUSING REAR PART. Without this kit, the structural integrity of the transmission assembly is compromised, leading to misalignment of internal components.
Symptoms of Failure
When the ZF 4657.183.236 LOOSE PARTS kit begins to fail, operators typically notice three to four distinct warning signs. First, transmission oil leaks at the housing seam are common, as loose fasteners allow the HOUSING REAR SECTION to separate slightly under load. Second, gear slipping under heavy load occurs when the fixing hardware cannot maintain proper shaft alignment. Third, unusual metallic rattling from the bell housing indicates that loose parts are vibrating against the casing. Fourth, difficulty engaging gears often results from the front section shifting out of tolerance.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.183.236 |
| OEM Reference | ZF 4657.183.236 |
| Material | Hardened Steel / Alloy Steel |
| Weight | 0.45 kg (approx.) |
| Dimensions | Varies per component (kit) |
| Compatible Fasteners | CAP SCREW (0636100801) & CAP SCREW (0636100803) |
| Related Hardware | CYLINDRICAL PIN (0631306816) |
Compatibility
This ZF 4657.183.236 LOOSE PARTS kit is primarily engineered for the WG 190 Series transmission. However, due to shared architecture, it also fits the WG 180 and WG 200 models when used in conjunction with the correct FIXING PLATE (4656301148) and SCREEN SHEET (4657301032). For WG 200 applications, verify the rear housing variant; the SCREEN SHEET (4657301033) may be required for proper oil flow.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201168 | HOUSING REAR PART | Rear housing section for output shaft |
| 4657298101 | HOUSING REAR SECTION | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating |
| 0636100801 | CAP SCREW | Fastener for front housing |
| 4656301148 | FIXING PLATE | Retains loose hardware in position |
| 4657301032 | SCREEN SHEET | Filter screen for oil circuit |
| 4657301033 | SCREEN SHEET | Alternate filter screen variant |
| 0636100803 | CAP SCREW | Fastener for rear housing |
Frequently Asked Questions
Q: Can I reuse the old fasteners instead of buying the ZF 4657.183.236 kit?
A: No. ZF specifies that all loose parts in this kit, including the cap screws and cylindrical pins, must be replaced during overhaul to prevent thread fatigue and oil leaks.
Q: Does this kit include the screen sheets for the WG 190?
A: No. The 4657.183.236 kit contains only the loose hardware. The SCREEN SHEET (4657301032) and SCREEN SHEET (4657301033) are ordered separately for the oil filtration system.
Q: How do I know if my WG 180 uses the front or rear housing variant?
A: Check the casting number on the HOUS.FRONT SECT and the HOUSING REAR PART. The 4657.183.236 kit is compatible with both, but the HOUSING REAR SECTION (4657298101) requires a different fastener torque.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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