Overview
The ZF 2099.329.017 PIN is a precision-engineered locating and retaining pin specifically designed for the differential assembly within ZF WG100, WG130, and WG131 heavy-duty transmissions. This OEM genuine part ensures accurate alignment of internal components under extreme torque loads. The SKU 2099.329.017 functions as a critical fastening element, securing the differential housing and preventing rotational movement of mating parts. It is installed directly within the gear train assembly, where it interfaces with the 2093109055: DIFFERENTIAL to maintain structural integrity during high-stress operations.
Symptoms of Failure
When the ZF 2099.329.017 pin wears out or shears, operators may notice distinct mechanical issues. 1. Abnormal differential housing noise – a persistent clunking or grinding sound from the transmission center section indicates pin fatigue. 2. Gear slippage under load – the transmission may momentarily lose power transfer when climbing or hauling heavy loads. 3. Oil contamination from metal debris – small metallic particles in the transmission fluid signal pin degradation. 4. Imprecise shift engagement – delayed or harsh gear changes occur as the pin loses its locating ability. These symptoms often accompany wear in the 0750117075: TAPER ROLLER BEARING, which shares the same load path.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 2099.329.017 |
| Material | Case-hardened alloy steel (SAE 8620 equivalent) |
| Overall Length | 48.5 mm (1.91 in) |
| Outer Diameter | 12.0 mm (0.472 in) |
| Weight | 0.042 kg (0.093 lb) |
| OEM Reference | ZF 2099.329.017 (Genuine) |
| Hardness | 58-62 HRC (Rockwell C scale) |
| Surface Finish | Black oxide coated for corrosion resistance |
Compatibility
This pin is engineered for ZF WG-series transmissions. It is a direct fit for the WG100, WG130, and WG131 models. It also serves as a replacement in the WG180 and WG200 series when used in conjunction with the 2093209094: DIFFERENTIAL assembly. For applications involving the 2093309078: DIFF.HOUSING, verify housing bore dimensions prior to installation. This part is not compatible with ZF Ecomat or AS Tronic series without adapter kits.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109055 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on differential shaft |
| 2093209094 | DIFFERENTIAL | Secondary differential unit for multi-axle configurations |
| 2093309078 | DIFF.HOUSING | Encloses and protects differential gears |
| 0631100223 | SPRING PIN | Secures shift fork or detent mechanisms |
| 0730300820 | THRUST WASHER | Reduces friction between rotating gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from differential to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears and pinions |
| 5838300811 | THRUST WASHER | Provides axial clearance control in differential |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with pinion gears for speed differentiation |
Frequently Asked Questions
Q: Can the ZF 2099.329.017 pin be reused after removal?
A: No. This is a single-use interference-fit pin. Reusing it risks improper retention and accelerated wear of the 2093109055: DIFFERENTIAL assembly. Always replace with a new OEM pin.
Q: What torque specification is required for installation?
A: The pin is driven into place using a press fit; no threaded torque applies. Ensure the receiving bore in the 2093309078: DIFF.HOUSING is clean and free of burrs before installation.
Q: How does this pin differ from a standard spring pin?
A: Unlike the 0631100223: SPRING PIN, the 2099.329.017 is a solid, case-hardened pin designed for static retention under shear loads, not for dynamic spring action.
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Phone: +86 158 2286 3467 |
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