Overview
The ZF 5838.300.008 INNER CLUTCH DISK is a precision-engineered friction component designed for the hydraulic clutch packs within ZF WG100, WG130, and WG131 powershift transmissions. This OEM genuine part transfers torque between rotating shafts when hydraulic pressure engages the clutch pack, enabling smooth gear changes under heavy load. Positioned directly within the clutch drum assembly, the SKU 5838.300.008 works in concert with steel separator plates to modulate power flow. For optimal drivetrain integrity, this disk should be inspected alongside the 5838109007 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING, which share the same oil circuit and load path.
Symptoms of Failure
- Delayed or harsh gear engagement: Worn friction material causes the clutch pack to slip before fully locking, leading to a noticeable lag or jerky shift when moving from neutral to drive.
- Transmission overheating: Excessive slippage from a degraded inner clutch disk generates abnormal heat, often indicated by a rising temperature gauge or burnt oil smell.
- Loss of power under load: When the disk fails to maintain friction, the transmission may momentarily lose torque delivery during uphill climbs or heavy hauling, accompanied by engine RPM flare.
- Metallic debris in transmission fluid: As the friction lining disintegrates, particles contaminate the oil, which can be observed during routine fluid changes or filter inspections.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.008 |
| Type | Inner Clutch Disk (Friction Plate) |
| Outer Diameter | ~180 mm (estimated) |
| Inner Diameter | ~120 mm (estimated) |
| Thickness | ~3.5 mm (new) |
| Material | Steel core with sintered bronze friction lining |
| Weight | ~0.35 kg |
| OEM Reference | ZF Friedrichshafen AG |
Compatibility
This inner clutch disk is engineered 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 where the clutch pack dimensions match. Always verify spline count and stack height against your transmission’s service manual. When rebuilding a clutch pack, consider pairing this disk with the 2095209019 DIFFERENTIAL and the 0631329086 SPRING PIN to ensure proper alignment of the planetary gearset.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on shafts |
| 2095209019 | DIFFERENTIAL | Torque distribution for heavy-duty axles |
| 0631329086 | SPRING PIN | Secures clutch pack components to hub |
| 5838300817 | THRUST WASHER | Reduces friction between rotating surfaces |
| 5838300682 | DIFFERENTIAL AXLE | Carries differential gears and spider shafts |
| 5838300811 | THRUST WASHER | Controls end-play in planetary gear sets |
| 5841302064 | THRUST WASHER | Wear surface for sun gear thrust loads |
| 5838300137 | OUTER CLUTCH DISK | Steel separator plate for clutch pack |
| 5838300138 | INNER CLUTCH DISK | Alternate friction plate for different stack |
ZF 5838.300.008 INNER CLUTCH DISK – Clutch Disk RFQ Support
PartsZF helps B2B buyers source ZF 5838.300.008 INNER 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 5838.300.008 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- 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 | 5838.300.008 |
|---|---|
| Normalized SKU | 5838300008 |
| Part name | INNER 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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