Overview
The ZF 0631.329.017 SPRING PIN is a precision-engineered fastening component designed for the WG100, WG130, and WG131 transmission series. This OEM genuine part functions as a critical locating and retaining pin within the shift mechanism and clutch housing assembly, ensuring precise alignment of internal actuation components. The SKU 0631.329.017 is manufactured to ZF’s exacting tolerances to withstand high shear loads and vibrational stress. When installed, this spring pin works in concert with the 2093140001: HOISTING UNIT and the 2093240001: LIFTING SHAFT to secure the transmission’s external control linkage.
Symptoms of Failure
- Erratic gear engagement or gear slipping: A worn or sheared spring pin allows the shift fork to move out of alignment, causing incomplete gear engagement during operation.
- Transmission oil seepage at the housing joint: When the spring pin fatigues, it can create micro-gaps around the bore, leading to slow oil leaks that worsen over time.
- Unusual metallic rattling from the clutch housing: A loose 0631.329.017 spring pin permits adjacent components like the 2095340002: BUSH to vibrate against the housing, producing a distinct noise under load.
- Difficulty shifting into reverse or low gears: Loss of pin retention causes the 2093340007: BRACKET to shift position, creating binding in the shift rail.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 0631.329.017 |
| Product Type | Spring Pin (Slotted Tubular) |
| Material | Spring Steel (C67S or equivalent), Zinc-plated |
| Outside Diameter | 8 mm (nominal) |
| Length | 28 mm |
| Wall Thickness | 1.5 mm |
| Weight | Approx. 6 grams |
| OEM Reference | ZF 0631.329.017 |
| Hardness | HRC 45-52 |
| Shear Strength | ≥ 800 N/mm² |
Compatibility
This genuine ZF spring pin is specifically engineered for the WG100, WG130, and WG131 transmission models. It is also compatible with select variants of the WG180 and WG200 series where the shift housing bore dimensions match. For applications involving the WG200, verify that the 0501327177: PLAIN BEARING and 2093340008: BRACKET are also inspected during service. The 0631.329.017 pin is not interchangeable with standard metric roll pins; always use OEM-spec parts for proper retention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093140001 | HOISTING UNIT | Lifting point for transmission removal |
| 2093240001 | LIFTING SHAFT | Rotary support for hoisting bracket |
| 2095340002 | BUSH | Wear sleeve for shift shaft |
| 2093340007 | BRACKET | Mounting plate for shift linkage |
| 0501327177 | PLAIN BEARING | Friction-reducing sleeve for shafts |
| 2093340008 | BRACKET | Secondary support bracket |
| 5838300323 | BEARING BUSH | Guide bushing for output shaft |
| 0636011381 | HEXAGON SCREW | Fastener for housing covers |
| 0632604006 | LUBRICATING NIPPLE | Grease fitting for pivot points |
| 5838300240 | SEALING RING | Oil seal for shaft passages |
Frequently Asked Questions
Q: Can I reuse the 0631.329.017 spring pin after removal?
A: No. Spring pins are single-use components designed to deform plastically during installation. Reusing a removed pin compromises retention force and risks shear failure. Always install a new OEM pin.
Q: Does this pin fit the ZF WG131 transmission with the updated shift housing?
A: Yes. The 0631.329.017 is the standard pin for all WG100, WG130, and WG131 variants. However, if your transmission has been retrofitted with a reinforced bracket, verify bore depth against the pin length of 28 mm.
Q: What tools are needed to replace this spring pin?
A: A pin punch set (4-6 mm) and a hammer are sufficient. Do not use a drift punch larger than the pin diameter to avoid expanding the slot. Always support the housing with a 2093340008: BRACKET or similar backing plate to prevent distortion.
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Phone: +86 158 2286 3467 |
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