AUTOKAY Ignition Coil Module for Kohler 7000 Series KT/ZT Engines — 2-Pack Direct-Fit OEM Replacement for Reliable Spark

If your lawn mower or small engine powered by Kohler KT or ZT series models is misfiring, hard to start, or cutting out under load, this AUTOKAY ignition coil module is engineered to match OEM specifications and deliver consistent ignition performance. Designed specifically for Kohler part numbers 3258406-S, 3258406, and equivalent codes, this twin-pack provides two ready-to-install coils for a fast repair or to keep a spare on hand.

Which Kohler engines does this ignition coil fit?

This coil is compatible with a wide range of Kohler KT, ZT and SV small engines commonly used in lawn tractors and commercial mowers. Confirm fit by matching the OEM part number (32-584-06-S or 3258406-S) to your engine's service manual or parts diagram before ordering.

• KT series: KT600, KT610, KT620, KT715, KT725, KT730, KT735, KT740
• ZT series: ZT710, ZT720, ZT730 (7000 Series)
• SV series compatibility: SV470, SV480, SV530, SV540, SV590, SV600, SV620
• Replaces Kohler part references 3258406-S / 3258406 / 3258406S

How does this coil improve engine starting and performance?

The ignition coil converts battery or magneto energy into the high-voltage pulse needed to fire the spark plug consistently across RPM ranges. Replacing a worn or failed coil eliminates weak or intermittent sparks, reducing misfires and improving throttle response.

• Provides steady high-voltage output for consistent combustion
• Reduces backfiring and rough idling from weak spark
• Helps restore normal RPM and acceleration under load
• Sold in a convenient two-pack for quick replacement or backup

What should I check before installing the replacement coil?

Before installation, verify the OEM part number and inspect surrounding components to ensure the coil replacement resolves the issue. Good practice includes checking the spark plug, ignition wire, gap distance, and mounting surface for damage or corrosion.

• Match the coil part number 32-584-06-S / 3258406-S to your engine
• Inspect spark plug condition and replace if fouled
• Clean mounting surface and confirm proper air gap per manual
• Test ignition wire and connections for wear or corrosion

How easy is installation and what hardware is required?

Installation is straightforward for owners comfortable with basic small-engine maintenance: remove the old coil, set the correct air gap, and bolt the AUTOKAY coil in place. No special tools beyond common hand tools are required; always follow the engine manufacturer’s torque and gap specifications.

• Typical tools: ratchet, sockets, feeler gauge, screwdriver
• Set air gap using a feeler gauge to Kohler specifications
• Use existing mounting bolts and tighten to manufacturer torque
• Test-run engine after install to confirm proper operation

Who is this for: This two-pack AUTOKAY ignition coil module is intended for homeowners, landscapers, and repair technicians working on Kohler-powered lawn tractors and commercial mowers in the 7000 Series family. If you own or service KT610–KT740, ZT710–ZT730, or the listed SV engines and need a cost-effective, OEM-compatible ignition coil replacement, this product provides two ready-to-fit modules to get equipment back in service quickly.