Overview
The ZF 5838.300.007 OUTER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 powershift transmission series. This genuine OEM part sits within the clutch pack assembly, where it transfers torque from the driving hub to the output shaft under hydraulic pressure. The SKU 5838.300.007 specifically denotes a steel-backed friction disk designed to withstand high thermal loads during repeated shifting cycles. When the clutch pack engages, this outer disk locks against the drum to provide smooth power delivery, making it essential for loaders, graders, and heavy-duty trucks. For optimal drivetrain integrity, always pair this disk with a matching INNER CLUTCH DISK to maintain proper clearance and friction balance.
Symptoms of Failure
- Transmission gear slipping under load: Worn friction material on the 5838.300.007 causes the clutch pack to lose clamping force, resulting in RPM flare without corresponding vehicle movement—a common issue in WG100 transmissions.
- Delayed or harsh engagement: As the outer clutch disk degrades, hydraulic pressure cannot lock the pack effectively, leading to a noticeable lag when shifting from neutral to drive or reverse.
- Metallic grinding noise during shifts: Excessive wear exposes the steel core, causing metal-on-metal contact within the drum. This often accompanies burnt transmission fluid odor.
- Contaminated oil with dark debris: Shedding friction material from the disk circulates through the system, clogging filters and accelerating wear on components like the TAPER ROLLER BEARING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 5838.300.007 |
| Outer Diameter | 180 mm (approx.) |
| Inner Diameter | 130 mm (approx.) |
| Thickness | 2.5 mm (new) |
| Material | Steel core with sintered bronze friction lining |
| Weight | 0.35 kg |
| OEM Reference | ZF 5838.300.007 |
| Position | Outer clutch pack (driving side) |
Compatibility
This OUTER CLUTCH DISK is specifically designed for ZF WG-series powershift transmissions. Verified fitment includes the WG100, WG130, and WG131 models commonly used in construction and agricultural machinery. It may also be compatible with WG180 and WG200 series when used in the forward clutch pack, though cross-referencing with the OUTER CLUTCH DISK 5838300137 is recommended for those variants. Always inspect the SPRING PIN and DIFFERENTIAL assembly during replacement, as worn disks often indicate deeper drivetrain stress.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shafts under axial load |
| 2095209019 | DIFFERENTIAL | Secondary torque distribution unit |
| 0631329086 | SPRING PIN | Secures clutch pack alignment |
| 5838300817 | THRUST WASHER | Reduces axial friction in gear train |
| 5838300682 | DIFFERENTIAL AXLE | Transfers power to wheel hubs |
| 5838300811 | THRUST WASHER | Controls end-play in clutch drum |
| 5841302064 | THRUST WASHER | Wear surface for planetary gears |
| 5838300137 | OUTER CLUTCH DISK | Alternate variant for WG180 series |
| 5838300138 | INNER CLUTCH DISK | Mating friction disk for clutch pack |
ZF 5838.300.007 OUTER CLUTCH DISK – Clutch Disk RFQ Support
PartsZF helps B2B buyers source ZF 5838.300.007 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 5838.300.007 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 | 5838.300.007 |
|---|---|
| Normalized SKU | 5838300007 |
| 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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- ZF 0501.228.272 INNER CLUTCH DISK
