Overview
The ZF 4657.103.411 OUTPUT for WG190/WG191/WG210 is a critical final-drive component engineered to transfer rotational force from the transmission’s planetary gearset to the driveline. Positioned at the rear of the main housing assembly, this OEM genuine part ensures precise torque delivery and minimal power loss in heavy-duty commercial vehicles. The SKU 4657.103.411 is machined from high-strength alloy steel to withstand continuous load cycles in construction, agricultural, and municipal equipment. When paired with a properly sealed TRANSMISSION HOUSING, this output component maintains concentric alignment and prevents axial play that can degrade shift quality.
Symptoms of Failure
- Oil seepage at the rear output seal – Worn splines or bearing surfaces on the 4657.103.411 allow lubricant to bypass the seal, leaving visible drips under the transmission bell housing.
- Intermittent gear slipping under load – When the output shaft’s spline engagement wears, torque transfer becomes inconsistent, especially during uphill climbs or heavy towing.
- Metallic grinding noise from the transmission tail – Degraded bearing journals on this part create a rhythmic scraping sound that intensifies with vehicle speed.
- Excessive driveline vibration – A warped or cracked output component causes harmonic imbalance, felt as a low-frequency shudder through the chassis at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.103.411 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 312 mm |
| Outer Diameter (bearing seat) | 85 mm |
| Spline Count | 24 involute splines |
| Weight | 4.7 kg |
| OEM Reference | ZF 4657.103.411 |
| Torque Capacity | 2,100 Nm (estimated) |
Compatibility
This genuine ZF output is designed for the WG 190, WG 191, WG 210, and WG 211 series transmissions. It directly replaces units in WG180 and WG200 variants when used with the correct HOUS.FRONT SECT and HOUSING REAR PART. The part also interfaces with the CYLINDRICAL PIN for precise alignment during assembly. Always verify your transmission model code before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Encloses gearset and supports output shaft |
| 4657201027 | HOUS.FRONT SECT | Front section of main housing, aligns input shaft |
| 4657201012 | HOUSING REAR PART | Rear housing section, contains output bearing bore |
| 0631306792 | CYLINDRICAL PIN | Dowel pin for precise housing alignment |
| 0636100801 | CAP SCREW | M12 bolt for securing housing halves |
| 4656301148 | FIXING PLATE | Retains output bearing in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M10 bolt for oil pan attachment |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply line to output bearings |
Frequently Asked Questions
Q: Can the 4657.103.411 be used in a WG180 transmission?
A: Yes, with verification of spline count and bearing journal dimensions. The WG180 uses the same output interface as the WG190 series, but always compare your old part against the 312 mm overall length and 85 mm bearing seat diameter.
Q: What torque specification should I use when installing this output?
A: ZF recommends 120 Nm for the output flange nut, applied in a single continuous motion. Use a new CAP SCREW and thread-locking compound to prevent loosening.
Q: How do I confirm this is an OEM genuine part and not a replica?
A: Genuine ZF 4657.103.411 units have a laser-etched part number on the shaft body and a matte black oxide finish. Counterfeit parts often show rough machining marks near the spline root.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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