Overview
The ZF 5838.300.310 Inner Clutch Disk is a precision-engineered friction component designed for the clutch pack assembly within ZF WG100, WG130, and WG131 powershift transmissions. This OEM genuine part sits directly inside the clutch drum, where it engages with steel separator plates to transmit torque from the engine to the driveline. The SKU 5838.300.310 ensures exact fitment and consistent clamping force, critical for smooth gear engagement under heavy load. When paired with a matching 5838022003: REAR AXLE and 5838109001: DIFFERENTIAL, this disk maintains drivetrain integrity in demanding industrial applications.
Symptoms of Failure
- Transmission gear slipping under load: Worn friction material on the inner clutch disk causes the clutch pack to lose grip, resulting in RPM flare without corresponding vehicle movement during acceleration or uphill operation.
- Delayed or harsh shifting: A degraded 5838.300.310 disk leads to inconsistent hydraulic pressure application, producing jerky engagement or noticeable lag between gear changes.
- Burnt transmission fluid odor: Overheated friction surfaces generate a distinct acrid smell, often accompanied by dark, discolored ATF fluid indicating excessive clutch slippage.
- Reduced power transfer to the 5838300128: DIFFERENTIAL HOUSING: Inadequate clutch engagement starves downstream components of torque, causing poor performance in the rear axle assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 5838.300.310 |
| OEM Reference | ZF 5838.300.310 |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness | 3.5 mm (new) |
| Material | High-carbon steel with sintered bronze friction lining |
| Weight | 0.45 kg |
| Friction Coefficient | 0.12 – 0.14 (dry) |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This inner clutch disk is engineered specifically for ZF WG-series powershift transmissions. Verified compatible models include WG100, WG130, and WG131. It may also be used in WG180 and WG200 variants when cross-referenced with original clutch pack specifications. For proper assembly, always inspect the 0750117075: TAPER ROLLER BEARING and associated thrust washers during replacement to prevent premature wear.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838022003 | REAR AXLE | Transfers torque from differential to wheels |
| 5838109001 | DIFFERENTIAL | Distributes power between left/right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads in gear sets |
| 5838300128 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 0631329086 | SPRING PIN | Secures clutch pack alignment |
| 5838300129 | THRUST WASHER | Reduces axial friction in clutch assembly |
| 5838300130 | THRUST WASHER | Secondary axial clearance control |
| 5838300131 | AXLE BEVEL GEAR | Changes torque direction in differential |
| 5838300132 | COMPENS. STUB AXLE | Compensates for axle length variations |
| 5838300133 | COMPENS. STUB AXLE | Alternate compensation stub axle |
ZF 5838.300.310 INNER CLUTCH DISK – Clutch Disk RFQ Support
Use ZF 5838.300.310 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 5838.300.310 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 | 5838.300.310 |
|---|---|
| Normalized SKU | 5838300310 |
| 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
