Overview
The ZF 5840.303.450 OUTER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 transmission series. Positioned within the clutch pack assembly, this OEM genuine part transfers torque from the driving hub to the outer drum, enabling smooth gear engagement and power flow. The SKU 5840.303.450 is precision-machined to ZF’s exacting tolerances, ensuring consistent clamping force and heat dissipation during heavy-duty operations. When paired with a matching DIFFERENTIAL and TAPER ROLLER BEARING, this disk maintains optimal axial alignment and load distribution across the drivetrain.
Symptoms of Failure
When the outer clutch disk wears beyond service limits, operators typically encounter these specific failure indicators:
- Delayed or harsh gear engagement – Worn friction material causes the clutch pack to slip before fully locking, leading to jerky shifts or hesitation when moving from neutral to drive.
- Transmission overheating – Excessive slippage generates abnormal heat, often detected by warning lights or burnt oil smell, indicating the disk can no longer maintain proper clamping force.
- Loss of power under load – During acceleration or hill climbing, the engine revs increase without proportional vehicle speed, a classic sign of clutch disk fatigue.
- Metallic grinding noises – Once the friction lining is completely worn, the steel core contacts the drum, producing a distinct grinding sound that signals imminent catastrophic failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5840.303.450 |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness | 2.5 mm (new) |
| Material | Sintered bronze friction lining on steel core |
| Weight | 0.45 kg |
| OEM Reference | ZF 5840.303.450 |
| Application | WG100, WG130, WG131 |
Compatibility
This outer clutch disk is specifically designed for ZF’s WG-series powershift transmissions, including the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 series when used in the forward clutch pack. For complete assembly integrity, always inspect the DIFFERENTIAL and DIFFERENTIAL HOUSING for wear during replacement, as these components share the same lubrication circuit and axial loads.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial shaft loads |
| 2093209023 | DIFFERENTIAL | Secondary torque split 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 axle shafts |
| 5838300633 | AXLE | Rotates wheel hubs |
| 5838300753 | THRUST WASHER | Controls gear end-play |
| 5838300818 | THRUST WASHER | Supplementary axial spacer |
Frequently Asked Questions
Q: Can I use this outer clutch disk in a WG180 transmission?
A: Yes, the 5840.303.450 is compatible with WG180 models that share the same clutch pack dimensions, but always verify stack height against your service manual.
Q: What causes premature wear on this disk?
A: Common causes include low transmission oil level, contaminated fluid, or a failing TAPER ROLLER BEARING that introduces misalignment in the clutch drum.
Q: Do I need to replace the differential housing at the same time?
A: Not always, but inspect the DIFFERENTIAL HOUSING for scoring or cracks, as debris from a failed disk can damage the housing bore.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 5840.303.450 OUTER CLUTCH DISK – Clutch Disk RFQ Support
Use ZF 5840.303.450 OUTER 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 5840.303.450 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 | 5840.303.450 |
|---|---|
| Normalized SKU | 5840303450 |
| 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
