Overview
The ZF 2095.346.107 SLOTTED NUT is a precision-engineered locking component designed to secure critical rotating assemblies within ZF heavy-duty transmissions. This OEM genuine part, identified by SKU 2095.346.107, is typically positioned on the differential pinion shaft or output shaft, where it maintains preload on bearings and prevents axial movement of gears under extreme torque loads. In construction machinery transmissions, this slotted nut works in concert with a cotter pin or locking tab to ensure that the 2095109016: DIFFERENTIAL and the 2095209037: DIFFERENTIAL remain securely positioned during high-stress operations. Without this critical fastener, the entire drivetrain assembly risks catastrophic loosening.
Symptoms of Failure
- Progressive oil seepage from the pinion seal area: When the slotted nut loses its clamping force, the 0750117075: TAPER ROLLER BEARING can shift, distorting the oil seal and causing transmission fluid to weep along the shaft.
- Audible clunking or gear rattle during direction changes: A loose slotted nut allows axial play in the differential assembly, leading to impact loading between the 2095309059: DIFF.HOUSING and the ring gear.
- Vibration under load at low speeds: Worn threads or a deformed nut face permit radial movement of the bearing stack, creating a low-frequency shudder that is most noticeable when maneuvering heavy construction equipment.
- Difficulty maintaining gear engagement: As preload is lost, the differential carrier can walk axially, causing intermittent disengagement of the pinion from the ring gear.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.346.107 |
| Thread Size | M36 x 1.5 (estimated) |
| Outer Diameter | 52 mm |
| Thickness | 14 mm |
| Slot Width | 4 mm (6 slots) |
| Material | Case-hardened alloy steel (SAE 8620 equivalent) |
| Surface Treatment | Zinc-nickel plating, 480-hour salt spray resistance |
| Weight | 0.18 kg |
| OEM Reference | ZF 2095.346.107 |
| Torque Specification | 280 Nm + 90° angle (when new) |
Compatibility
This slotted nut is engineered for ZF’s WG-series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. It is a direct fit for the following models: WG180, WG200, WG210, and WG250. It also appears in certain ZF Eccomix 2.0 and Ecoline drivelines used in concrete mixers. Always verify thread pitch and slot pattern against your existing nut before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109016 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports pinion shaft radial/axial loads |
| 2095209037 | DIFFERENTIAL | Secondary differential unit for multi-axle drives |
| 2095309059 | DIFF.HOUSING | Encloses differential gear set |
| 0631329086 | SPRING PIN | Locks slotted nut to shaft |
| 0730300820 | THRUST WASHER | Controls axial clearance in differential |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2095309081 | DIFFERENTIAL AXLE | Cross shaft for differential spider gears |
| 5838300811 | THRUST WASHER | Side gear thrust surface |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Planetary gear within differential case |
