Overview
The ZF 4657.105.413 AXLE DISCONNECTION is a critical OEM genuine component engineered specifically for the WG 210 Series transmission. This precision-machined part governs the selective engagement and disengagement of the drive axle, allowing the transmission to switch between 4×2 and 6×4 configurations under load. Positioned within the rear housing assembly, the axle disconnection unit interfaces directly with the 4657101039: TRANSMISSION HOUSING and the 4657201028: HOUS.FRONT SECT to manage torque distribution. The SKU 4657.105.413 is manufactured to ZF’s exacting tolerances, ensuring seamless integration and long service life in heavy-duty vocational trucks and off-road equipment.
Symptoms of Failure
- Intermittent axle engagement failure: The driveline fails to lock or unlock when the dash switch is activated, often accompanied by a grinding noise from the 4657201013: HOUSING REAR PART area.
- Hydraulic oil seepage at the shift fork bore: Worn seals on the 4657.105.413 allow ATF to weep past the actuator, leaving puddles under the transmission bell housing.
- Delayed or harsh shift quality: The axle disconnect solenoid receives voltage but the internal spool valve sticks, causing a 2-3 second lag before engagement or a jarring “clunk” when the 0631306792: CYLINDRICAL PIN shears from fatigue.
- Dashboard warning light for “Axle Disconnect Circuit”: The TCM detects a position sensor mismatch, often traced back to a fractured detent spring inside the 4657.105.413 assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| ZF Part Number | 4657.105.413 |
| OEM Reference | ZF 4657 105 413 |
| Material | Hardened alloy steel (case-carburized) |
| Weight | 2.85 kg (6.28 lbs) |
| Overall Length | 187 mm |
| Max Operating Pressure | 18 bar (261 psi) |
| Seal Type | Viton dual-lip with PTFE backup |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This axle disconnection unit is a direct-fit replacement for the following ZF transmission models: WG180, WG200, WG210, and WG250 series. It is also compatible with select ZF 16S- and 12S-series gearboxes that utilize a pneumatically actuated axle disconnect system. Always verify the casting number on your existing 4657101039: TRANSMISSION HOUSING before ordering to ensure correct spline count and bolt pattern alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section housing input shaft bearings |
| 4657201013 | HOUSING REAR PART | Rear section supporting output flange |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10x30 flange bolt for housing clamp |
| 4656301148 | FIXING PLATE | Retains shift fork to actuator rod |
| 4657301034 | SCREEN SHEET | Fine mesh filter for lube circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M12x35 bolt for axle disconnect cover |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply tube to clutch pack |
Frequently Asked Questions
Q: Can the ZF 4657.105.413 be rebuilt, or must it be replaced as a unit?
A: This is a non-serviceable sealed assembly. ZF does not supply internal repair kits for the 4657.105.413; replacement with the OEM genuine part is the only approved repair method.
Q: Will a failed axle disconnection cause transmission overheating?
A: Yes. If the unit sticks in the engaged position, the axle remains locked during high-speed road travel, creating excessive driveline drag and raising sump temperatures by 15-20°C.
Q: How do I verify that the 4657.105.413 is compatible with my WG210 serial number?
A: Check the 11-digit serial number on the 4657101039: TRANSMISSION HOUSING data plate. Units built after 2015 require the -413 revision; earlier units may need the -412 variant.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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