Overview
The ZF 4657.103.409 OUTPUT for WG190 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output flange. Positioned at the rear of the main casing, this OEM genuine part ensures precise rotational alignment and load distribution under high-stress industrial conditions. The SKU 4657.103.409 is machined from hardened alloy steel to withstand continuous heavy-duty cycles in construction and agricultural machinery. It interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain structural integrity of the final drive assembly.
Symptoms of Failure
- Oil seepage at the output seal area – Worn splines or bearing journals on the 4657.103.409 allow lubricant to bypass the seal, creating visible drips under the bell housing.
- Vibration during load take-up – A degraded output shaft causes driveline shudder, especially when shifting between forward and reverse in WG190 series transmissions.
- Intermittent gear slipping under heavy torque – When the output’s spline engagement wears, the transmission may momentarily lose power transfer, triggering fault codes for output speed sensor mismatch.
- Metallic debris in the oil pan – Flaking from the output’s hardened surface contaminates the hydraulic circuit, often requiring replacement of the SCREEN SHEET and associated filters.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.103.409 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.85 kg (8.5 lbs) |
| Overall Length | 245 mm |
| Spline Major Diameter | 42 mm |
| OEM Reference | ZF 4657.103.409 |
| Torque Capacity | 1,200 Nm (peak) |
Compatibility
This output component is primarily designed for the ZF WG 190 Series and ZF WG 210 Series transmissions. It is also compatible with the WG180 and WG200 variants where the output flange interface matches the 42mm spline pattern. The part integrates with the HOUSING REAR PART and is secured using the CYLINDRICAL PIN for precise alignment. Always verify the output shaft length against your specific transmission model before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing enclosing the gearset |
| 4657201027 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4657201012 | HOUSING REAR PART | Rear casing supporting the output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | M10 fastener for housing retention |
| 4656301148 | FIXING PLATE | Locking plate for output bearing preload |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M12 fastener for output flange |
| 4681301040 | OIL FEED.HOUSG. | Lubrication channel housing for output bearings |
Frequently Asked Questions
Q: Can the 4657.103.409 be used in a ZF WG210 transmission without modification?
A: Yes, the output shaft dimensions are identical for WG190 and WG210 series. However, always check the output flange bolt pattern—some WG210 variants use a different pilot diameter.
Q: What torque specification should I use for the retaining nut on this output?
A: ZF specifies 280 Nm for the output shaft nut when using a new CAP SCREW. Always replace the locking plate (part 4656301148) during reassembly.
Q: How do I identify if my output shaft is worn beyond reuse?
A: Measure the spline tooth thickness at the root. If it is below 3.2 mm or shows visible step wear, replace the 4657.103.409 immediately to avoid damaging the HOUSING REAR PART.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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