Overview
The ZF 4657.103.403 OUTPUT for WG210 is a critical driveline component engineered to transfer rotational force from the transmission’s planetary gear set to the output flange. Positioned at the rear of the WG 210 series housing, this OEM genuine part ensures precise torque delivery and maintains proper alignment within the powertrain. The SKU 4657.103.403 is machined from high-strength alloy steel to withstand continuous heavy-duty cycles. When installed alongside the 4657101033: TRANSMISSION HOUSING, it forms a sealed assembly that prevents contamination ingress and supports long service intervals.
Symptoms of Failure
- Oil leaks at the rear output seal — Worn splines or bearing surfaces on the 4657.103.403 cause seal misalignment, leading to fluid seepage around the output flange.
- Intermittent gear slipping under load — A damaged output shaft cannot maintain positive engagement with the planetary carrier, resulting in momentary power loss during acceleration.
- Vibration or driveline shudder — Excessive wear on the output’s pilot diameter creates radial play, transmitting harmonics through the driveshaft at highway speeds.
- Metallic debris in transmission fluid — Flaking from the output’s hardened surface contaminates the oil, accelerating wear on the 4657201027: HOUS.FRONT SECT and adjacent bearings.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.103.403 |
| Material | Alloy steel (case-hardened) |
| Overall Length | 215 mm |
| Output Flange Diameter | 85 mm |
| Spline Count | 24 (involute) |
| Weight | 3.2 kg |
| OEM Reference | ZF 4657.103.403 |
| Hardness (Rockwell) | HRC 58–62 |
Compatibility
This output is designed for the ZF WG 210 series, but it also fits select models in the WG180, WG200, and WG250 families when used with the correct 4657201012: HOUSING REAR PART. Always verify spline count and pilot bore dimensions against your transmission’s serial number. The part integrates directly with the 0631306792: CYLINDRICAL PIN for precise alignment during assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Encloses gear train and supports output shaft bearings |
| 4657201027 | HOUS.FRONT SECT | Front section housing for pump and clutch assembly |
| 4657201012 | HOUSING REAR PART | Rear housing that aligns output flange and seal |
| 0631306792 | CYLINDRICAL PIN | Locating pin for housing-to-output alignment |
| 0636100801 | CAP SCREW | M10 fastener for securing output flange |
| 4656301148 | FIXING PLATE | Retains output shaft axial position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for output area lubrication |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil return |
| 0636100803 | CAP SCREW | M12 fastener for housing-to-output joint |
| 4681301040 | OIL FEED.HOUSG. | Directs pressurized oil to output bearing |
Frequently Asked Questions
Q: Can the 4657.103.403 be used in a ZF WG180 transmission?
A: Yes, with verification of spline count and pilot bore. The output shares the same spline geometry as WG180 models, but you must also check the 4657201012: HOUSING REAR PART for compatibility.
Q: What torque specification is required for the output flange cap screws?
A: Use 85 N·m for the 0636100801: CAP SCREW and 110 N·m for the 0636100803: CAP SCREW. Always apply thread locker to prevent loosening under vibration.
Q: How do I identify a worn output shaft without removing the transmission?
A: Measure axial play at the output flange using a dial indicator. Play exceeding 0.15 mm indicates the 4657.103.403 or its mating 0631306792: CYLINDRICAL PIN requires replacement.
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Phone: +86 158 2286 3467 |
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