Products Description
ECHO CS-4510 Chainsaw Clutch Assembly – OEM-Spec Replacement
Direct Replacement Clutch for ECHO CS-4510 & Compatible Professional Saws
The clutch assembly on the ECHO CS-4510 is a critical engine component that transfers power from the engine to the chain. It consists of spring-loaded clutch shoes that expand outward under centrifugal force as engine RPM increases, engaging the clutch drum to drive the chain. When the engine idles, the shoes retract, allowing the chain to remain stationary for safe operation.Replacement is necessary when the clutch shoes are excessively worn, springs are broken or weakened, or the assembly shows signs of heat damage or scoring. This OEM-spec replacement restores smooth engagement, reliable power transfer, and safe chain operation for professional arborist and tree care applications.
Technical Profiles & Materials
OEM-Spec Fitment – Designed as a direct replacement for ECHO CS-4510 and compatible models including CS-4510ES, CS-4010, CS-420ES, and 451S. Replaces OEM part number P021007470 and associated clutch hardware.
Spring-Loaded Centrifugal Design – The clutch shoes expand outward under centrifugal force as RPM increases, engaging the clutch drum to drive the chain. Springs retract the shoes at idle, keeping the chain stationary for safe operation .
Wear-Resistant Construction – Manufactured from high-quality steel with heat-treated components to withstand the friction and heat generated during engagement. Springs are engineered for consistent tension and long service life.
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | P021007470 / 17501410430 |
| 2 | Compatible Models | CS-4510, CS-4510ES, CS-4010, CS-420ES, 451S |
| 3 | Also Compatible | CS-301, CS-370, CS-400, CS-440, CS-450 |
| 4 | Thread Direction | Left-hand (turn clockwise to remove) |
| 5 | Material | High-quality steel / Metal |
| 6 | Clutch Type | Centrifugal shoe-type |
| 7 | Associated Parts | Clutch drum (030713850), needle bearing (17501200831) |
| 8 | Installation | Basic hand tools, piston stop required |
| 9 | Recommended Torque | 12–15 N·m |
Products Application
Professional Arborist & Tree Care
The CS-4510 is a professional-grade chainsaw delivering 2.3kW (3.1 HP) of power. The clutch assembly is critical for smooth engagement during felling, limbing, and bucking operations. A worn clutch can cause chain spin at idle, failure to engage under load, or poor power transfer during demanding cuts.
Full Clutch System Overhaul
When rebuilding the clutch system, replace the clutch assembly (P021007470), clutch drum (030713850), and needle bearing (17501200831) simultaneously to ensure all wear-prone components are renewed. This comprehensive approach prevents premature failure of new parts and ensures smooth clutch engagement and reliable power transfer.
Preventative Maintenance
For high-hour saws used in commercial forestry and landscaping, regular inspection of the clutch shoes and springs is recommended. Replace the assembly if you notice chain spin at idle, slipping under load, unusual noise, or visible wear on the clutch shoes. A failing clutch can cause overheating and damage to the clutch drum and crankshaft.
Quality and Craftsmanship Details
Products Package
About Us
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FAQ
Q: How do I confirm this clutch fits my ECHO CS-4510?
A:Check your chainsaw model number on the housing. This clutch fits ECHO CS-4510, CS-4510ES, CS-4010, CS-420ES, and 451S models. OEM part numbers include P021007470 and 17501410430. Verify your existing clutch part number before ordering.
Q: What are the symptoms of a worn clutch?
A: Common symptoms include the chain spinning at idle (clutch not disengaging), the chain failing to engage when throttle is applied, clutch slipping under load, unusual noise from the clutch area, and visible wear on the clutch shoes. Replace the clutch assembly if you detect any of these issues.
Q: What other components should be inspected when replacing the clutch?
A: Inspect the clutch drum (OEM 030713850) for grooving or heat damage, the needle bearing (OEM 17501200831) for wear or seized rollers, and the brake band for correct positioning during reassembly. Replace these components together for a full clutch system rebuild. The brake band must be correctly positioned around the clutch drum during reassembly .
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