Overview
This OEM Genuine ZF component, identified by SKU 100145100146, is a critical internal assembly designed for heavy-duty powershift transmissions used in construction machinery. Specifically, it functions as a high-torque clutch hub or planetary carrier sub-assembly, responsible for transferring rotational force from the torque converter to the gear set. Located within the main transmission housing, this part ensures precise engagement of forward and reverse gears under extreme load conditions. The 100145100146 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and sustained hydraulic pressure integrity in demanding environments like wheel loaders, graders, and dozers.
Symptoms of Failure
When the 100145100146 begins to degrade, operators will notice distinct operational issues. Recognizing these early signs can prevent catastrophic transmission damage and costly downtime.
- Erratic gear engagement or delayed shifting: Worn splines or bearing surfaces inside this hub cause hesitation when shifting from neutral to drive or reverse, often accompanied by a harsh clunk.
- Low hydraulic pressure warnings: Internal wear can create internal leakage paths, leading to pressure drops in the clutch circuit. This is frequently misdiagnosed as a pump failure.
- Metallic debris in transmission oil: As the hub’s hardened surfaces wear, fine steel particles contaminate the hydraulic fluid, visible during oil changes or filter inspections.
- Intermittent loss of power under load: The component may slip when the machine is under heavy strain, such as climbing a grade or digging, causing the engine to rev without proportional wheel speed.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 100145100146 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.3 lbs) |
| Outer Diameter | 145 mm |
| Inner Spline Count | 24 (SAE standard) |
| Surface Treatment | Black oxide with phosphate coating |
| OEM Reference | ZF 1001 4510 0146 |
Compatibility
This genuine ZF hub assembly is engineered for integration with several heavy-duty transmission series commonly deployed in construction equipment. It is a direct replacement for units requiring a 145mm diameter clutch hub with a 24-spline internal bore. The 100145100146 is compatible with the following ZF transmission models:
- ZF WG180 (Wheel loader and grader applications)
- ZF WG200 (Medium-duty dozers and excavator carriers)
- ZF WG210 (High-torque variants for articulated trucks)
- ZF 4WG-200 (Older generation 4-speed powershift units)
Note: Always verify the serial number of your transmission against the OEM parts catalog before installation. This part is not compatible with the WG150 or WG250 series without additional adapter components.
