Overview
The ZF 5838.300.722 OUTER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 series powershift transmissions. This OEM genuine part resides within the clutch pack assembly, where it transmits torque from the driving hub to the driven drum during gear engagement. By providing precise frictional grip, it ensures smooth power delivery and prevents unwanted slip under load. The SKU 5838.300.722 is manufactured to ZF’s exacting tolerances, guaranteeing consistent performance in heavy-duty off-highway applications such as wheel loaders, graders, and dump trucks.
Symptoms of Failure
- Transmission gear slipping under load: When the outer clutch disk wears thin, the clutch pack loses clamping force, causing the transmission to slip during acceleration or when climbing grades.
- Delayed or harsh shifting: A worn 5838.300.722 disk can cause erratic shift timing, with noticeable jerks or hesitation between forward and reverse gears.
- Burning smell from transmission fluid: Excessive friction from a glazed or warped disk generates heat, leading to burnt oil odor and potential thermal damage to adjacent components like the TAPER ROLLER BEARING.
- Reduced hydraulic pressure in clutch circuit: Debris from a disintegrating disk can clog valve bodies, resulting in low line pressure and eventual transmission failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.722 |
| Outer Diameter | 210 mm (8.27 in) |
| Inner Diameter | 150 mm (5.91 in) |
| Thickness | 3.5 mm (0.138 in) |
| Material | Sintered bronze on steel core |
| Weight | 0.45 kg (1.0 lb) |
| OEM Reference | ZF 5838.300.722 |
| Friction Surface | Grooved pattern for oil flow |
Compatibility
This outer clutch disk is designed for ZF WG-series powershift transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with certain variants of the WG180 and WG200 series when used in the forward clutch pack. Always verify your transmission serial number against the OEM parts catalog. For differential-related assemblies, the DIFFERENTIAL (5838109019) and DIFFERENTIAL (2093209024) are frequently serviced alongside this disk. Additionally, the SPRING PIN (0631329088) secures the clutch piston and should be inspected during replacement.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109019 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shafts under load |
| 2093209024 | DIFFERENTIAL | Final drive torque distribution |
| 0631329088 | SPRING PIN | Locks clutch piston assembly |
| 5838300811 | THRUST WASHER | Reduces axial play in gear train |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 5838300633 | AXLE | Connects differential to wheel hub |
| 5838300753 | THRUST WASHER | Controls gear end float |
| 5838300818 | THRUST WASHER | Prevents gear-to-housing contact |
| 5838300724 | DIFFERENTIAL HOUSING | Encloses differential gears |
ZF 5838.300.722 OUTER CLUTCH DISK – Clutch Disk RFQ Support
ZF 5838.300.722 OUTER CLUTCH DISK is handled as a clutch disk RFQ item for transmission repair buyers who need part-number confirmation and export coordination.
Part-Number Summary
Use ZF number 5838.300.722 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
This clutch disk supports clutch pack service and friction component sourcing for ZF transmissions. Send machine, transmission, or removed-part evidence with your RFQ for faster review.
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 | 5838.300.722 |
|---|---|
| Normalized SKU | 5838300722 |
| Part name | OUTER 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
