[Lifetime Warranty] 573935702 Ignition Coil

573935702 Ignition Coil

Key Features

• Genuine OEM replacement ignition module
• Generates high voltage for the spark plug
• Designed for consistent spark and reliable engine starts
• Durable construction for long service life
• Bulk-packed component

Replaces / Cross-Reference Part Numbers

• 573935702
• 573935701
• 505427201
• 544243801

Compatibility & Fitment

• Husqvarna Chainsaw Models: 435, 435E, 440, 445, 450, 450e II
• Jonsered Chainsaw Models: CS2240, CS2240S, CS2245, CS2250

When to Replace

• Engine has no spark or a weak, intermittent spark
• Engine fails to start
• Engine misfires, runs rough, or stalls, especially when hot
• Visible damage, such as cracks or corrosion, on the old coil

Installation Tips

• Disconnect the spark plug lead before beginning work.
• Refer to your equipment's service manual for detailed instructions.
• Set the correct air gap between the ignition module and the flywheel magnets.
• Ensure all ground wires and electrical connections are clean and secure.
• Verify the part number in your owner's manual before installation.