Overview
This ZF 0501.313.598 Outer Clutch Disk is a precision-engineered friction component designed for the WG100, WG130, and WG131 transmission series. Positioned within the clutch pack assembly, this OEM genuine part transfers torque from the input shaft to the planetary gear sets, enabling smooth gear engagement and reliable power flow. The SKU 0501.313.598 is manufactured to ZF’s exacting tolerances, ensuring consistent clamping force and heat dissipation during heavy-duty operations. When paired with a matching DIFFERENTIAL and TAPER ROLLER BEARING, this disk maintains optimal hydraulic pressure and reduces internal wear across the drivetrain.
Symptoms of Failure
When the ZF 0501.313.598 outer clutch disk deteriorates, operators often notice delayed or harsh gear engagement during acceleration, a classic sign of worn friction material. Another common failure symptom is intermittent transmission slipping under load, especially when climbing grades or towing heavy trailers. You may also detect darkened, burnt-smelling transmission fluid caused by excessive heat from clutch pack slippage. Finally, erratic shift patterns or gear hunting between forward ratios frequently point to a failing outer disk that cannot maintain proper clamping force.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0501.313.598 |
| OEM Reference | ZF 0501.313.598 |
| Material | High-carbon steel with sintered bronze friction lining |
| Outer Diameter | 198 mm (approx.) |
| Inner Diameter | 135 mm (approx.) |
| Thickness | 2.5 mm (new) |
| Weight | 0.45 kg |
| Friction Surface | Grooved pattern for oil flow |
| Compatible Fluid | ZF TE-ML 03 or 04 series |
Compatibility
This outer clutch disk is engineered specifically for ZF WG100, WG130, and WG131 transmissions, commonly found in medium-duty trucks, buses, and construction equipment. It also fits select variants of the WG180 and WG200 series when used in low-torque applications. For complete assembly integrity, always inspect the DIFFERENTIAL HOUSING for cracks and verify the DIFFERENTIAL gear lash before installation. The 0501.313.598 disk is not backward-compatible with older WG series without a clutch pack shim kit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads |
| 2093209023 | DIFFERENTIAL | Secondary torque distribution unit |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 0631329088 | SPRING PIN | Secures clutch pack alignment |
| 5838300811 | THRUST WASHER | Reduces axial friction |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Rotational support member |
| 5838300753 | THRUST WASHER | Controls end-play clearance |
| 5838300818 | THRUST WASHER | Secondary axial load distribution |
Frequently Asked Questions
Q: How do I know if the 0501.313.598 outer clutch disk is worn beyond service limits?
A: Measure the disk thickness with a micrometer. If it is below 2.2 mm, or if the friction material shows glazing or uneven wear, replacement is required. Always compare against a new disk for warpage.
Q: Can I install this disk without replacing the steel separator plates?
A: It is strongly recommended to replace all steel plates and springs in the clutch pack simultaneously. Worn separators can cause premature failure of the new outer disk and lead to slipping within 500 operating hours.
Q: Is the 0501.313.598 compatible with synthetic transmission fluids?
A: Yes, but only if the fluid meets ZF TE-ML 03 or 04 specifications. Using non-approved synthetic oils may cause the friction lining to delaminate or chatter during engagement.
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ZF 0501.313.598 OUTER CLUTCH DISK – Clutch Disk RFQ Support
PartsZF helps B2B buyers source ZF 0501.313.598 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 0501.313.598 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: FRONT WH.DRIVE
- Illustration section: LASTSCHALTGR
- Illustration section: SPLITTER BOX
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 | 0501.313.598 |
|---|---|
| Normalized SKU | 0501313598 |
| Part name | OUTER CLUTCH DISK |
| Product category | clutch disk |
| Cross-reference support | Available for RFQ review |
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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