Overview
The ZF 2098.317.011 BUSH is a precision-engineered OEM genuine part designed to serve as a critical wear surface within the differential assembly of heavy-duty construction machinery transmissions. This bushing acts as a load-bearing interface, reducing friction between rotating shafts and stationary housings in the final drive section. Specifically, the SKU 2098.317.011 sits inside the differential housing, supporting the axle bevel gear shaft to maintain precise gear alignment under extreme torque loads. Its failure directly compromises the structural integrity of the entire drivetrain, making it a vital component for maintaining operational uptime in earthmoving equipment.
Symptoms of Failure
- Low-speed grinding noise from the differential housing: When the 2098.317.011 bushing wears, metal-on-metal contact produces a distinct rhythmic grinding sound during turns or under load, often misdiagnosed as gear damage.
- Increased backlash in the drivetrain: Worn bushings allow excessive radial play in the axle bevel gear, causing a noticeable clunk when shifting between forward and reverse gears.
- Contaminated transmission oil with metallic particles: Degradation of the bushing surface sheds bronze or steel debris into the lubricant, visible as glitter in oil samples during routine maintenance.
- Premature failure of the differential bevel gear set: A failing bushing misaligns the crown wheel and pinion, accelerating tooth wear and leading to costly gear replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2098.317.011 |
| Material | Phosphor bronze (SAE 841) with PTFE lining |
| Inner Diameter | 38.10 mm (1.500 in) |
| Outer Diameter | 44.45 mm (1.750 in) |
| Length | 31.75 mm (1.250 in) |
| Weight | 0.12 kg (0.26 lbs) |
| OEM Reference | ZF 2098.317.011 (Genuine) |
| Hardness | 80-90 Rockwell B |
Compatibility
This bushing is engineered for ZF WG-series powershift transmissions commonly used in construction loaders and graders. It is a direct fit for the WG180, WG200, and WF220 series, where it supports the axle bevel gear shaft within the differential housing. The part also applies to select ZF 4WG-200 and ZF 6WG-250 models used in articulated dump trucks. For proper installation, always replace this bushing alongside the 2098309010: DIFFERENTIAL HOUSING and 2098309031: AXLE BEVEL GEAR to ensure concentric alignment. The 2098109042: DIFFERENTIAL assembly and 2098309011: CROWN WHEEL should also be inspected for wear when servicing this bushing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098109042 | DIFFERENTIAL | Distributes torque to axle shafts |
| 2098309011 | CROWN WHEEL | Transfers power from pinion to differential |
| 2099209001 | DIFFERENTIAL | Complete assembly for final drive |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses gear set and supports bearings |
| 2098309009 | DIFFERENTIAL HOUSING | Alternate housing variant for WG series |
| 2098309031 | AXLE BEVEL GEAR | Drives the differential case |
| 2098309030 | AXLE BEVEL GEAR | Matching gear for opposite side |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear for torque distribution |
| 12883200682 | THRUST WASHER | Reduces axial end-play in gear sets |
| 0635332059 | BALL BEARING | Supports rotating shaft loads |
