6S5-17800-10-00 Yamaha Supercharger Clutch
6S5-17800-10-00 Yamaha Supercharger One Way Clutch DC63.34T is a precision marine clutch component designed for Yamaha FX-SHO, FZR, FZS and SVHO supercharged engines. Featuring a 27/28 sprag wedge structure and 63.34 × 80 × 11.5mm design, it provides reliable one-way locking, smooth overrunning performance and excellent durability under high-speed marine operating conditions. LSTO manufactures professional sprag clutch and freewheel clutch solutions with OEM customization, strict quality control and stable supply capability for global customers.
6S5-17800-10-00 Yamaha Supercharger One Way Clutch DC63.34T (27 Sprag Wedges)
6S5-17800-10-00 Yamaha Supercharger One Way Clutch DC63.34T (27 Sprag Wedges)
Introduction: What Is 6S5-17800-10-00 Supercharger One Way Clutch?
The 6S5-17800-10-00 Yamaha Supercharger One Way Clutch DC63.34T is a high-precision marine sprag clutch component designed for Yamaha high-performance supercharged engines.
This component is installed inside the supercharger drive system, where it controls power transmission between the engine and supercharger assembly.
The main function of this one way clutch is:
- Transfer engine power to the supercharger efficiently
- Provide automatic one-direction locking
- Allow free rotation during overrunning conditions
- Reduce reverse impact loads on the supercharger system
Unlike conventional bearings, a sprag one way clutch combines rotational support with mechanical locking capability.
When the engine drives the supercharger:
- The internal sprag wedges lock securely
- Torque is transmitted efficiently
- Supercharger performance remains stable
When speed conditions change:
- Sprag elements release automatically
- Reverse torque transmission is reduced
- Internal components are protected
The DC63.34T design is specifically developed for Yamaha marine applications requiring high-speed, high-reliability clutch performance.
Product Overview
| Item | Specification |
|---|---|
| Model | DC63.34T |
| OEM Reference Number | 6S5-17800-10-00 |
| Alternative Reference | 6ET-17800-10-00 / 6ET-17800-20-00 |
| Product Type | Supercharger One Way Clutch |
| Clutch Structure | Sprag Freewheel Clutch |
| Locking Elements | 27 / 28 Sprag Wedges |
| Dimensions | 63.34 × 80 × 11.5 mm |
| Application | Yamaha Marine Engine |
| Function | One Direction Torque Transmission |
Application: Yamaha Marine Supercharged Engines
The 6S5-17800-10-00 DC63.34T One Way Clutch is designed for Yamaha high-performance watercraft applications.
Compatible applications include:
| Yamaha Model | Application |
|---|---|
| Yamaha FX-SHO | Supercharged WaveRunner |
| Yamaha FZR | Performance Watercraft |
| Yamaha FZS | High Performance Jet Ski |
| Yamaha SVHO | Supercharged Marine Engine |
Typical applications:
- Yamaha WaveRunner
- Yamaha Jet Boat
- Marine performance engines
Key Features of DC63.34T Supercharger Clutch
1. High Precision 27/28 Sprag Wedge Design
The DC63.34T uses 27 or 28 precision sprag wedges to achieve reliable locking performance.
Advantages:
- Increased contact points
- Better torque distribution
- Faster engagement response
- Improved high-speed stability
Compared with standard one-way mechanisms, multi-wedge designs provide smoother engagement and improved load handling capability.
2. Compact 63.34 × 80 × 11.5mm Structure
The compact design allows easy integration into Yamaha supercharger systems.
Technical advantages:
| Feature | Benefit |
|---|---|
| 63.34mm Diameter | Accurate system matching |
| 80mm Outer Diameter | Stable rotational support |
| 11.5mm Width | Compact installation |
3. Designed for High-Speed Marine Environments
Marine supercharged engines operate under demanding conditions:
- High RPM rotation
- Frequent acceleration
- Strong vibration
- Continuous load changes
The DC63.34T clutch provides:
- Reliable locking performance
- High wear resistance
- Stable operation
- Extended service life
Working Principle of Yamaha Supercharger One Way Clutch
The DC63.34T operates through a precision sprag wedge locking mechanism.
Power Transmission Mode
When engine speed increases:
- Sprag wedges move into locking position.
- Inner and outer races engage.
- Engine torque drives the supercharger.
Freewheel Mode
When operating conditions change:
- Sprag wedges release.
- Relative rotation is allowed.
- Reverse shock loads are reduced.
This automatic switching improves:
- Supercharger protection
- Engine efficiency
- System reliability
Why Yamaha Uses One Way Clutch in Supercharger Systems?
A supercharger system requires precise control of rotational power.
The one way clutch provides:
Efficient Power Transfer
The clutch ensures engine power is transferred only when required.
Component Protection
It prevents unwanted reverse torque from damaging:
- Supercharger gears
- Drive components
- Engine accessories
Smooth High-Speed Operation
The automatic locking mechanism supports stable operation during rapid acceleration.
Product Advantages Compared With Traditional Clutch Systems
| Factor | DC63.34T One Way Clutch | Traditional Mechanical Clutch |
|---|---|---|
| Locking Response | Fast mechanical engagement | Slower |
| Structure | Compact | Larger |
| Control System | Automatic | Requires control |
| Maintenance | Low | Higher |
| High RPM Performance | Excellent | Limited |
LSTO Manufacturing Capability
LSTO specializes in precision manufacturing of:
- Marine Sprag Clutch
- Automotive Sprag Clutch
- Supercharger One Way Clutch
- Transmission Freewheel Clutch
Manufacturing processes include:
Precision Machining
- CNC machining
- Precision grinding
- Dimensional inspection
- Assembly control
Quality Inspection
| Inspection Item | Purpose |
|---|---|
| Material Testing | Ensure durability |
| Dimension Inspection | Guarantee OEM matching |
| Hardness Testing | Improve wear resistance |
| Functional Testing | Verify locking performance |
OEM Replacement and Customization Service
LSTO supports global customers with:
- OEM replacement production
- Sample reproduction
- Custom dimensions
- Engineering support
| Service | Customer Benefit |
|---|---|
| Drawing production | Accurate replacement |
| Prototype testing | Faster validation |
| Mass production | Stable supply |
| Quality control | Reliable performance |
FAQ About 6S5-17800-10-00 DC63.34T
What is 6S5-17800-10-00?
6S5-17800-10-00 is a Yamaha supercharger one way clutch used in high-performance marine engines.
How many sprag wedges does DC63.34T have?
The DC63.34T design uses 27 or 28 sprag wedges depending on configuration.
What are the dimensions of DC63.34T?
The size is:
63.34 × 80 × 11.5 mm
Which Yamaha models use this clutch?
It is used for Yamaha FX-SHO, FZR, FZS and SVHO supercharged marine engine systems.
Can LSTO manufacture replacement Yamaha supercharger clutches?
Yes. LSTO provides OEM replacement and customized sprag clutch manufacturing solutions.
Conclusion
The 6S5-17800-10-00 Yamaha Supercharger One Way Clutch DC63.34T is a high-performance marine freewheel clutch designed for Yamaha supercharged watercraft applications.
Featuring a 27/28 sprag wedge locking structure, 63.34 × 80 × 11.5mm compact design and reliable one-way transmission performance, this clutch provides stable power transfer and long service life in demanding marine environments.
LSTO specializes in Marine Sprag Clutch, Supercharger One Way Clutch and Transmission Freewheel Clutch solutions, supporting global customers with OEM manufacturing, precision production and customized engineering services.

















