Overview
The ZF 0631.100.223 SPRING PIN is a precision-engineered OEM genuine part designed to secure and align critical components within the WG100, WG130, and WG131 transmission assemblies. This spring pin acts as a locating dowel, preventing rotational movement and maintaining exact positioning of internal shafts and gears under high torque loads. As a small but vital fastener, it ensures that adjacent assemblies—such as the 2093109002: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING—remain correctly aligned during operation. The SKU 0631.100.223 is manufactured to ZF’s original specifications, guaranteeing a precise fit and long service life in heavy-duty industrial applications.
Symptoms of Failure
- Transmission gear slipping under load: A worn or sheared spring pin can allow the differential housing to shift, causing intermittent gear disengagement and power loss during operation.
- Abnormal metallic rattling from the differential area: When the spring pin fails, the 2093209095: DIFFERENTIAL may develop excessive play, producing a distinct knocking sound that worsens with acceleration.
- Oil seepage around the differential housing: A broken pin can misalign the 2093309071: DIFF.HOUSING, breaking the seal and leading to gradual lubricant leaks.
- Vibration during gear changes: Loss of pin integrity allows the differential assembly to wobble, transmitting vibrations through the drivetrain during shifts.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 0631.100.223 |
| Type | Spring Pin (Slotted Dowel) |
| Material | Spring Steel (EN 10270-1) |
| Diameter (Nominal) | 8 mm |
| Length | 30 mm |
| Weight | ~12 g |
| OEM Reference | ZF 0631.100.223 |
| Hardness | HRC 44-50 |
Compatibility
This OEM spring pin is specifically engineered for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with certain variants of the WG180 and WG200 series where the differential housing uses a pin-locating system. Always verify the part number against your transmission’s service manual to ensure correct fitment. For complete differential rebuilds, consider pairing this pin with the 2097309085: DIFFERENTIAL AXLE and the 4482360002: AXLE BEVEL GEAR for optimal assembly integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque to drive axles |
| 0750117075 | TAPER ROLLER BEARING | Supports differential shaft rotation |
| 2093209095 | DIFFERENTIAL | Secondary differential assembly |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheels |
| 5838300811 | THRUST WASHER | Prevents gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives differential rotation |
| 2093309049 | SLEEVE | Spacer for bearing preload |
Frequently Asked Questions
Q: Can I reuse the ZF 0631.100.223 spring pin after disassembly?
A: No. Spring pins are designed for single-use installation. Reusing a compressed pin can lead to insufficient retention force, causing misalignment of the differential housing and premature failure of the 2093109002: DIFFERENTIAL.
Q: What tools are needed to install this spring pin?
A: A pin punch set and a hammer are typically sufficient. Ensure the pin is driven flush with the housing surface. For precise alignment, use a drift punch to avoid damaging the 2093309071: DIFF.HOUSING bore.
Q: Does this part fit the ZF WG180 transmission?
A: Yes, the 0631.100.223 spring pin is compatible with WG180 models that share the same differential pin-locating geometry. Always cross-reference your transmission’s parts catalog to confirm.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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