Overview
The ZF 0631.328.568 SLOTTED PIN is a precision-engineered fastening component designed for secure alignment and retention within the planetary gear sets of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part, identified by SKU 0631.328.568, functions as a critical locating pin that prevents rotational movement of adjacent thrust washers and differential assemblies. It sits directly within the transmission housing, interfacing with the 5838109007: DIFFERENTIAL to ensure proper gear mesh and load distribution. Without this slotted pin, the entire fastening system for the differential and bearing assemblies can become unstable, leading to premature wear on surrounding components.
Symptoms of Failure
When the ZF 0631.328.568 SLOTTED PIN wears or fractures, operators often notice specific failure indicators. Look for these long-tail search queries to diagnose the issue:
- Transmission oil leaks near the differential housing – A broken slotted pin can cause the 0750117075: TAPER ROLLER BEARING to shift, breaking the seal and allowing fluid to escape.
- Gear slipping under load – If the pin fails to hold the differential in place, the 2095209019: DIFFERENTIAL may misalign, causing intermittent power loss during acceleration.
- Metallic rattling or knocking from the transmission – A loose slotted pin allows the 0631329086: SPRING PIN and adjacent thrust washers to vibrate, producing audible noise.
- Increased backlash in the drivetrain – Worn pins create excessive clearance between the differential and the housing, leading to delayed engagement when shifting gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0631.328.568 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Overall Length | 32.5 mm |
| Outer Diameter | 8.0 mm |
| Slot Width | 2.0 mm |
| Weight | 12 g |
| OEM Reference | ZF 0631.328.568 |
| Hardness | HRC 58-62 |
Compatibility
This ZF 0631.328.568 SLOTTED PIN is specifically engineered for the following ZF transmission models:
- WG100 – All variants (standard and heavy-duty)
- WG130 – All variants (including WG130C and WG130E)
- WG131 – All variants (including WG131B and WG131D)
- WG180 – Select configurations (verify with OEM parts manual)
- WG200 – Select configurations (verify with OEM parts manual)
Always cross-reference your transmission serial number with the ZF parts catalog before installation. This pin is often replaced alongside the 5838300817: THRUST WASHER and 5838300682: DIFFERENTIAL AXLE to ensure complete assembly integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on differential shaft |
| 2095209019 | DIFFERENTIAL | Alternative differential assembly for high-torque applications |
| 0631329086 | SPRING PIN | Secures slotted pin in housing bore |
| 5838300817 | THRUST WASHER | Reduces axial friction between differential and housing |
| 5838300682 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Provides wear surface for differential pinion gears |
| 5841302064 | THRUST WASHER | High-load thrust washer for planetary gear sets |
| 5838300137 | OUTER CLUTCH DISK | Friction surface for clutch pack engagement |
| 5838300138 | INNER CLUTCH DISK | Steel separator disk for clutch pack |
