Overview
This genuine OEM ZF 4657.183.020 LOOSE PARTS kit is a critical service component designed for the WG 210 Series transmission. It contains the essential fasteners, seals, and positioning elements required to secure the main transmission housing assembly during rebuild or repair. The SKU 4657.183.020 specifically addresses the internal hardware that holds the TRANSMISSION HOUSING together with the HOUS.FRONT SECT and the HOUSING REAR PART. Without this loose parts set, the structural integrity of the gearbox is compromised, leading to misalignment of internal shafts and clutch packs.
Symptoms of Failure
When the 4657.183.020 LOOSE PARTS begin to fail or are missing during reassembly, operators will notice distinct operational issues. Look for these specific failure symptoms to diagnose a worn or incomplete hardware set:
- Transmission oil leaks at housing seams: Worn or missing bolts from this kit cause the mating surfaces between the front and rear housings to separate, allowing ATF to weep under pressure.
- Gear slipping under load: A loose housing assembly allows the main shaft to shift out of alignment, resulting in intermittent clutch engagement and power loss during acceleration.
- Abnormal metallic rattling from the bell housing: When the CYLINDRICAL PIN (included in this kit) shears or backs out, internal components rattle against the housing walls.
- Hard shifting or delayed engagement: Misaligned housing sections create binding in the valve body passages, causing harsh or delayed gear changes.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.020 |
| Material Composition | Steel (fasteners) / Nitrile (seals) |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Hardware Count | 12 pieces (bolts, pins, washers) |
| OEM Reference | ZF 4657.183.020 |
| Thread Size (primary bolts) | M10 x 1.5 |
Compatibility
This genuine ZF 4657.183.020 LOOSE PARTS kit is engineered for the WG 210 Series transmission family. It is also compatible with the following ZF models that share the same housing architecture: WG180, WG200, WG211, and WG220. Always verify the housing casting numbers before installation. The kit directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure a precise fit on these models.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201012 | HOUSING REAR PART | Rear section of the transmission housing |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Locks fasteners in position |
| 4657301032 | SCREEN SHEET | Filter mesh for oil intake |
| 4657301033 | SCREEN SHEET | Secondary filter mesh |
| 0636100803 | CAP SCREW | Fastener for screen sheet retention |
| 4681301040 | OIL FEED.HOUSG. | Lubrication supply line housing |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG210 instead of buying this 4657.183.020 kit?
A: ZF does not recommend reusing torque-to-yield fasteners. This kit includes fresh hardware that meets OEM torque specifications, preventing housing distortion and oil leaks.
Q: Does this kit include the CYLINDRICAL PIN for alignment?
A: Yes. The 4657.183.020 LOOSE PARTS set contains the CYLINDRICAL PIN (0631306792) needed to align the HOUS.FRONT SECT with the rear housing during assembly.
Q: Will this work on a ZF WG180 transmission?
A: Yes. The WG180, WG200, and WG210 share the same housing bolt pattern and pin locations, making this kit a direct fit for those models.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
