Overview
The ZF 5838.300.064 INNER CLUTCH DISK is a precision-engineered friction component designed for the WG100, WG130, and WG131 transmission series. This OEM genuine part sits within the clutch pack assembly, where it transfers torque between rotating shafts during gear engagement. The SKU 5838.300.064 ensures exact fitment and reliable clamping force under heavy-duty industrial loads. When paired with a matching DIFFERENTIAL and TAPER ROLLER BEARING, this inner disk maintains consistent hydraulic pressure for smooth shifting in ZF transmissions.
Symptoms of Failure
- Delayed or harsh gear engagement – Worn friction material on the inner clutch disk causes hesitation when shifting from neutral to drive, often accompanied by a noticeable clunk.
- Transmission fluid overheating – Slipping disks generate excess heat, leading to burnt-smelling oil and potential damage to the DIFFERENTIAL HOUSING.
- Loss of power under load – When the inner disk fails to grip, engine RPM rises without proportional vehicle speed, especially during uphill climbs or heavy towing.
- Metallic grinding noises – Complete wear of the friction lining exposes steel backing plates, producing a distinct scraping sound from the clutch drum area.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.064 |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 130 mm (estimated) |
| Thickness | 2.5 mm (new) |
| Material | Sintered bronze on steel core |
| Weight | 0.45 kg |
| OEM Reference | ZF 5838.300.064 |
| Friction Coefficient | 0.12 (wet) |
Compatibility
This inner clutch disk is engineered specifically for ZF WG-series transmissions. Confirmed compatible models include:
- ZF WG100
- ZF WG130
- ZF WG131
It may also fit ZF WG180 and WG200 variants when used in the same clutch pack configuration. Always verify spline count and stack height against your existing assembly. For complete rebuilds, consider replacing the DIFFERENTIAL and thrust washers simultaneously.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial 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 axles |
| 5838300633 | AXLE | Connects differential to wheels |
| 5838300753 | THRUST WASHER | Controls gear end-play |
| 5838300818 | THRUST WASHER | Provides bearing surface for shafts |
Frequently Asked Questions
Q: How do I know if my ZF WG130 needs a new inner clutch disk?
A: Perform a stall test—if engine RPM exceeds 300 RPM above the specified stall speed while in gear, the friction material is likely worn. Also inspect for dark, gritty transmission fluid.
Q: Can I reuse the old thrust washers when installing this disk?
A: No. Always replace thrust washers like 5838300811 and 5838300753 during clutch disk replacement to maintain proper stack height and prevent premature failure.
Q: Does this part require special break-in procedures?
A: Yes. After installation, perform 10-15 light-load shifts from neutral to drive and back to seat the friction material. Avoid full-throttle operation for the first 50 km.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 5838.300.064 INNER CLUTCH DISK – Clutch Disk RFQ Support
Use ZF 5838.300.064 INNER CLUTCH DISK when preparing clutch-pack sourcing requests. PartsZF can review the number, related parts, and documentation requirements before quotation.
Part-Number Summary
Use ZF number 5838.300.064 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
- Illustration section: P.T.O. SHAFT
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 | 5838.300.064 |
|---|---|
| Normalized SKU | 5838300064 |
| Part name | INNER CLUTCH DISK |
| Product category | clutch disk |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
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.
Related Parts
- ZF 5838.300.306 INNER CLUTCH DISK
- ZF 5838.300.307 OUTER CLUTCH DISK
- ZF 0501.342.428 OUTER CLUTCH DISK
- ZF 0501.342.427 INNER CLUTCH DISK
- ZF 0501.216.833 LINED CLUTCH DISK
