Wetenex TS420 Ignition Coil for TS-410/TS-420 Concrete Cut-Off Saw — Direct-Fit Replacement, OEM-Part Compatible

Wetenex TS420 ignition coil is a direct-fit replacement designed to restore spark performance on Husqvarna-style TS-410 and TS-420 concrete cut-off saws using part numbers 42384001301 and 42384001307.

If your cut-off saw is misfiring, hard to start, or losing power under load, swapping the ignition coil for a high-quality replacement can return reliable spark and consistent engine behavior. The Wetenex coil is manufactured to match the original mounting, plug boot location, and electrical characteristics of the OEM units used on TS-410 and TS-420 models. It’s intended as a like-for-like replacement for part numbers 4238 400 1307, 42384001301, and 42384001307 and works with saws that share the same coil footprint and connector type.

How will this coil affect starting and ignition?

Replacing a worn or damaged coil typically improves starting consistency and reduces misfires. The Wetenex coil supplies a stable high-voltage pulse to the spark plug so combustion can occur reliably across operating conditions.

• Restores strong, consistent spark delivery for smoother starts.
• Reduces intermittent cutting interruptions caused by weak ignition.
• Maintains spark timing compatible with TS-410/TS-420 ignition systems.

Is the Wetenex coil compatible with my saw model?

This coil is built to replace the OEM reference numbers listed and fits TS-410 and TS-420 concrete cut-off saws that use those parts. Verify your existing coil’s part number or compare mounting points, connector type, and plug boot orientation before ordering.

• Replaces part numbers 42384001301 and 42384001307.
• Fits TS-410 and TS-420 concrete cut-off saws with matching coil footprint.
• Contact customer service if your model or connector differs.

What are the installation and safety considerations?

Installation requires basic mechanical skills and a few hand tools; disconnect the spark plug and battery (if present) before starting. Ensure wires and mounting screws are secured, and avoid contact with the ignition terminal while the engine can be powered to prevent shocks.

• Remove old coil, transfer any brackets or spacers, and mount new coil securely.
• Confirm correct gap and clearance per your saw’s service manual.
• Test engine in a safe area and recheck fasteners after initial run.

What performance features should I expect from this replacement coil?

The Wetenex replacement offers controlled high-voltage output and a limited-speed function that helps maintain ignition stability across the saw’s operating range. It’s engineered to protect the engine from erratic spark behavior while helping the machine run within its designed RPM window.

• Controlled voltage output for stable combustion at various speeds.
• Limited-speed function supports safer, predictable engine response.
• Manufactured to OEM-style dimensions for straightforward swap-in fitment.

Who is this for: The Wetenex TS420 ignition coil is aimed at professionals and DIY owners who operate TS-410 or TS-420 concrete cut-off saws and need a dependable, OEM-form replacement coil. Choose this part if your saw shows hard starting, misfires, or inconsistent performance and you can confirm the coil references or mounting match. If you’re unsure whether this coil fits your specific model, reach out to customer support with your saw’s serial/model number and an image of the existing coil for confirmation.