Overview
The ZF 0501.325.448 OUTER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it transfers torque between rotating shafts during gear engagement. By providing precise frictional grip, it ensures smooth power delivery and prevents unwanted slippage under heavy load. The SKU 0501.325.448 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life in commercial and industrial drivelines. When paired with a 2093109002 DIFFERENTIAL, this disk helps maintain consistent torque distribution across the axle assembly.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn outer clutch disk causes hesitation when shifting, as the friction material can no longer grip effectively. This often manifests as a noticeable “clunk” when moving from neutral to drive.
- Transmission fluid overheating: Slipping clutches generate excessive heat, leading to burnt-smelling fluid and potential thermal damage to nearby components like the 0750117075 TAPER ROLLER BEARING.
- Intermittent power loss under load: When climbing grades or hauling heavy payloads, a failing disk allows the engine to rev without proportional vehicle acceleration, a classic sign of clutch pack wear.
- Metallic debris in transmission oil: As the friction lining disintegrates, particles contaminate the hydraulic system, potentially clogging valves and damaging the 2093209095 DIFFERENTIAL unit.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.325.448 |
| Outer Diameter | 195 mm (estimated) |
| Inner Diameter | 135 mm (estimated) |
| Thickness | 3.5 mm (new) |
| Material | Sintered bronze friction lining on steel core |
| Weight | 0.45 kg |
| OEM Reference | ZF 0501.325.448 |
| Friction Coefficient | 0.12 (wet, dynamic) |
Compatibility
This outer clutch disk is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with certain WG180 and WG200 variants that share the same clutch pack architecture. Always verify your transmission’s serial number against ZF’s parts catalog. For complete axle rebuilds, consider inspecting the 2093309071 DIFF.HOUSING for cracks or wear that could affect clutch alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on shafts |
| 2093209095 | DIFFERENTIAL | Secondary differential for multi-axle configurations |
| 2093309071 | DIFF.HOUSING | Encloses and protects differential gears |
| 0631100223 | SPRING PIN | Secures clutch pack alignment dowels |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating parts |
| 4482360002 | AXLE BEVEL GEAR | Transfers power at right angles in the axle |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Prevents gear-to-housing contact |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives the differential cross shaft |
Frequently Asked Questions
Q: Can I install this outer clutch disk without replacing the steel separator plates?
A: It is strongly recommended to replace all friction disks and steel plates simultaneously. Mixing old and new components can cause uneven wear and reduce the life of the 0501.325.448 disk by up to 40%.
Q: How do I confirm this part fits my WG130 transmission?
A: Check the transmission model plate for “WG130” and verify the clutch pack thickness. The 0501.325.448 disk requires a minimum of 3.2 mm clearance in the drum. If your unit uses a different stack height, you may need a 0730300820 THRUST WASHER to adjust end play.
Q: What torque specification should I use for the clutch pack retaining nut?
A: ZF specifies 85–95 Nm for the main clutch hub nut on WG100/WG130 series. Over-torquing can distort the outer clutch disk and cause premature failure.
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Phone: +86 158 2286 3467 |
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ZF 0501.325.448 OUTER CLUTCH DISK – Clutch Disk RFQ Support
PartsZF helps B2B buyers source ZF 0501.325.448 OUTER CLUTCH DISK with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This clutch disk page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 0501.325.448 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 0501.325.448 |
|---|---|
| Normalized SKU | 0501325448 |
| Part name | OUTER CLUTCH DISK |
| Product category | clutch disk |
| Cross-reference support | Available for RFQ review |
| Weight | 0.2 |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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