Overview
The ZF 4657.183.038 LOOSE PARTS kit is a critical service assembly designed for the WG 210 series transmission. This genuine OEM component set includes all necessary fasteners, seals, and positioning elements required to secure internal sub-assemblies within the main gear case. The SKU 4657.183.038 specifically addresses the retention and alignment of the clutch pack and planetary gear sets, preventing axial movement during high-torque operation. When rebuilding a WG210, this loose parts kit must be installed in conjunction with the TRANSMISSION HOUSING to ensure proper load distribution across the entire driveline.
Symptoms of Failure
- Intermittent gear slippage under load: Worn or missing loose parts cause the clutch drums to shift out of tolerance, leading to delayed engagement and torque loss during acceleration.
- Metallic rattling from the bell housing: When the 4657.183.038 components degrade, loose fasteners allow planetary gears to contact the HOUS.FRONT SECT, producing a distinct chatter at idle.
- Hydraulic fluid contamination: Fractured retaining clips from this kit can shed debris into the oil circuit, clogging valve bodies and causing erratic shift patterns.
- Axial end-play exceeding 0.5 mm: Without the correct loose parts, the HOUSING REAR PART cannot maintain proper preload on the output shaft bearings.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.038 |
| Material Composition | Case-hardened steel (DIN 1.7131) with zinc-nickel plating |
| Kit Contents | 6x retaining rings, 4x alignment dowels, 2x thrust washers |
| Weight (kit) | 0.42 kg (0.93 lbs) |
| Max Torque Capacity | 2,100 Nm |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 4657.183.038 (Genuine) |
Compatibility
This loose parts kit is engineered for the ZF WG 210 series, but cross-referencing with the CYLINDRICAL PIN alignment system confirms its use in earlier WG180 and WG200 variants. The 4657.183.038 is also compatible with WG190 and WG220 models that share the same bolt pattern for the rear cover assembly. Always verify the housing casting number before installation, as the kit interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure concentric alignment of the input shaft.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing for torque converter |
| 4657201012 | HOUSING REAR PART | Rear cover with output shaft support |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0636100801 | CAP SCREW | M10x1.5 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for clutch piston |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil pump intake |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8x1.25 bolt for valve body |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel for planetary gears |
Frequently Asked Questions
Q: Can I reuse the old loose parts from my WG210 rebuild?
A: ZF explicitly prohibits reusing the 4657.183.038 kit components. The retaining rings lose their spring tension after one torque cycle, which can lead to catastrophic gear train separation. Always install a fresh OEM kit.
Q: Does this kit include the bolts for the HOUSING REAR PART?
A: No. The 4657.183.038 contains only loose alignment parts and thrust washers. You must order the CAP SCREW (0636100801) separately for the rear housing bolts.
Q: How do I verify the correct orientation of the CYLINDRICAL PIN in this kit?
A: The pin’s chamfered end must face the HOUS.FRONT SECT to prevent galling during assembly. Insert it dry—no thread locker—and tap flush with a brass drift.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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