Overview
The ZF 4646.155.012 POWER TAKE-OFF is an OEM genuine component engineered specifically for the WG 260 Series transmission. This unit transfers engine torque to auxiliary hydraulic systems, such as pumps for dump bodies or winches, by engaging directly with the transmission’s internal gearing. As a critical interface between the drivetrain and secondary equipment, the SKU 4646.155.012 ensures precise power distribution without compromising transmission integrity. It mounts to the PTO aperture on the 4646101169: TRANSMISSION HOUSING, forming a sealed assembly that withstands high torque loads.
Symptoms of Failure
When the 4646.155.012 begins to wear, operators may notice these specific failure indicators:
- Oil seepage at the PTO mounting flange – A common sign of degraded seals, often leading to low transmission fluid levels and overheating.
- Gear slipping under load – Worn internal splines or bearings cause intermittent power loss to auxiliary equipment, especially during heavy lifting.
- Unusual grinding or whining noise – Metallic sounds during engagement indicate damaged gear teeth or insufficient lubrication.
- Difficulty engaging or disengaging the PTO – Sticking shift mechanisms or hydraulic pressure loss prevent smooth operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4646.155.012 |
| Material | High-strength alloy steel (case-hardened) |
| Weight | 4.2 kg (9.3 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 110 mm |
| OEM Reference | ZF 4646.155.012 |
| Torque Capacity | 450 Nm (332 ft-lbs) |
| Mounting Bolts | 0636115293: 螺栓 (4x M12) |
| Seal Kit | 0634316523: O-RING |
Compatibility
This POWER TAKE-OFF is designed for the ZF WG 260 Series, but it also fits select models in the WG 180, WG 200, and WG 250 families due to shared PTO aperture dimensions. It integrates with the 4646201003: POT for hydraulic control and requires the 0736300232: 螺栓 for secure fastening. Always verify housing compatibility with your transmission’s serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101169 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 0636115293 | 螺栓 | Mounting bolt for PTO flange |
| 4646201003 | POT | Hydraulic pressure control valve |
| 0736300232 | 螺栓 | Fastener for PTO shift mechanism |
| 4475280208 | SCREW PLUG | Seals oil passages in housing |
| 0634316523 | O-RING | Prevents fluid leaks at joints |
| 4646108006 | COUNTERSHAFT | Transfers torque between gears |
| 4646109016 | PARKING BRAKE | Locks output shaft when stationary |
| 0501008365 | DISC BRAKE | Friction-based braking system |
| 0501207633 | BRAKE CALIPER | Holds brake pads against disc |
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