Husqvarna Clutch Drum Socket 578097901 — OEM Replacement for 445/450/350 Chainsaws, U.S.-Made

Husqvarna Clutch Socket Drum 578097901 is a direct-fit OEM replacement component that restores clutch engagement and sprocket support on compatible Husqvarna and Jonsered chainsaws.

This genuine, U.S.-made clutch drum is an authorized OEM part designed to match factory specifications for reliable fit and performance. It replaces worn or damaged clutch drums on multiple Husqvarna chainsaw models and select Jonsered units, using the original part number for easy identification. Installing the correct drum helps maintain safe chain drive operation and preserves the tool’s service life without the guesswork of aftermarket substitutes.

Which chainsaw models use this Husqvarna clutch drum?

This clutch socket drum (OEM 578097901) fits a range of Husqvarna and Jonsered models commonly used for heavy-duty cutting and property maintenance. Check your chainsaw’s parts list or model plate to confirm compatibility before ordering.

• Direct Husqvarna fit: 450 e II, 450, 445 II, 450 E, 450 II, 445 e II
• Jonsered compatibility: CS2245, CS2245 S II, CS2245 II, CS2250 S II, CS2245 S, CS2250 S
• Also replaces older Husqvarna numbers: 5038730-73, 503873073, 503873071, 503873072

How does this part compare to aftermarket alternatives?

As an OEM-authorized component, this drum is manufactured to the original specifications for material, dimensions, and heat treatment, helping ensure proper clutch engagement and sprocket alignment. Aftermarket pieces can vary in tolerances and metallurgy, which may affect durability or fit.

• Made in the United States to Husqvarna-approved standards
• Exact bolt and bore alignment for plug-and-play replacement
• Designed to resist wear at the clutch engagement and chain drive points

What should I inspect during installation and maintenance?

When replacing the clutch drum, inspect mating components for wear to prevent premature failure. Proper lubrication, correct torque on fasteners, and a clean sprocket area all contribute to longer service life.

• Check clutch shoes and springs for even wear and correct return action
• Inspect sprocket and chain for hooked or worn teeth that can stress the drum
• Clean housing debris and apply recommended lubrication where applicable

Will this part restore original performance and safety?

Replacing a damaged or worn clutch drum with this OEM unit restores the original interface between the engine’s clutch and the chain sprocket, helping the saw operate as designed. While it brings the mechanical connection back to factory standards, overall safety also depends on correct installation and general tool maintenance.

• Restores proper chain engagement and reduces slippage risk
• Maintains factory tolerances for predictable power transfer
• Supports safe, consistent cutting when combined with full maintenance

Who is this for: This Husqvarna 578097901 clutch socket drum is intended for owners, repair shops, and fleet managers who maintain Husqvarna or compatible Jonsered chainsaws and need an exact OEM replacement. Choose this part when you require U.S.-made, factory-approved dimensions and construction to ensure reliable fitment and to help preserve the saw’s intended performance.