Overview
The ZF 2098.301.052 REAR AXLE HOUS. is a structural core component designed to encase and protect the differential and final drive gearset within heavy-duty construction machinery transmissions. As an OEM genuine part, this axle housing provides the rigid mounting point for the wheel ends and absorbs all torsional and vertical loads during operation. The SKU 2098.301.052 sits directly between the main transmission casing and the brake housing assembly, forming the final torque transfer point to the wheels. Precision machining ensures correct alignment of the ring and pinion gears, making this housing critical for drivetrain longevity in ZF powershift systems.
Symptoms of Failure
- Visible oil seepage around the axle tube welds – Cracks or porosity in the housing casting allow gear oil to escape, leading to low lubricant levels and accelerated gear wear.
- Abnormal whining or grinding from the rear axle – A warped or cracked housing misaligns the differential bearings, causing uneven gear contact and audible distress during load cycles.
- Wheel hub wobble or excessive end-play – Fatigue fractures in the housing flange compromise the bearing preload, resulting in unstable wheel tracking and uneven tire wear.
- Contaminated transmission fluid with metallic debris – Internal housing fractures shed casting particles into the oil, which can block the filter and damage downstream hydraulic components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2098.301.052 |
| Material | High-strength ductile iron (GGG-40) |
| Overall Length | 820 mm |
| Flange Diameter | 280 mm |
| Dry Weight | 42.5 kg |
| OEM Reference | ZF 2098.301.052 |
| Bolt Pattern | 12 x M16 on 240 mm PCD |
Compatibility
This rear axle housing is engineered for ZF WG-series powershift transmissions commonly deployed in wheel loaders, telehandlers, and graders. It is a direct fit for the WG180, WG200, and WG210 transmission models. The housing also integrates with the WG150 and WG160 series when used with the appropriate brake housing adapter. Always verify the axle ratio and brake configuration before installation, as the 2098.301.052 is designed for standard-duty applications up to 18 tons GVW.
During installation, this housing is secured using 0636103300: STUD and 0636102566: STUD fasteners, which must be torqued to specification. The mating face requires a 0634303044: O-RING to prevent fluid migration. The assembly is then locked with 0637101164: HEXAGON NUT and a 0631329063: SPRING PIN for vibration resistance. The 2098117002: HOUSING provides the primary structural interface to the transmission case.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2098117002 | HOUSING | Primary transmission case interface |
| 0636103300 | STUD | Axle housing mounting fastener |
| 0637101164 | HEXAGON NUT | Locking nut for studs |
| 0636102566 | STUD | Secondary mounting fastener |
| 0636100960 | STUD | Brake housing attachment stud |
| 0637101167 | HEXAGON NUT | Nut for brake housing studs |
| 0634303044 | O-RING | Seal between housing and case |
| 2098317013 | BRAKE HOUSING | Left-side brake assembly housing |
| 2098317028 | BRAKE HOUSING | Right-side brake assembly housing |
| 0631329063 | SPRING PIN | Alignment dowel for housing |
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