FEXON Ignition Coil Module for Kohler Engines — 2-Pack Direct-Fit Replacement, OEM-Style Spark Restore

The FEXON Ignition Coil Module 2-pack is a direct-fit replacement for Kohler ignition coils (including part 3258406-S) designed to restore spark strength and reliable starting for compatible lawn mower engines.

If your Kohler-powered lawn mower is struggling to start, misfiring, or running unevenly, worn or damaged ignition coils are often the cause. The FEXON two-piece coil set is manufactured to match OEM dimensions and electrical output so you can swap units quickly and get back to mowing. These coils are sold as a pair and cross-reference numerous Kohler part numbers used across KT, ZT, SV and 7000 series small engines.

Will this coil fit my Kohler engine model?

FEXON coils are built to replace a range of Kohler part numbers and fit many KT, ZT and SV-series engines. Confirm fit by checking your engine’s part number against the compatibility list before purchasing.

• Compatible with Kohler KT715, KT725 and KT740 models
• Fits ZT720, ZT730 and ZF-IG-A00077 designs
• Also compatible with SV470, SV480, SV530, SV540, SV590 and SV600/620 engines
• Replaces OE numbers such as 32-584-06-S, 3258406-S and related cross-references

How does installation and fitment work?

These ignition coils are engineered as plug-and-play replacements to simplify installation and minimize modification. The housing, mounting points and electrical terminals mirror OEM specifications so you can reuse existing hardware and wiring connectors.

• Direct-fit design—no drilling or adapters required
• Standard terminal spacing for straightforward wiring hookup
• Ships as a pair so you can replace both coils at once for balanced performance
• Includes quality materials to meet or exceed OEM durability

What performance improvements can I expect?

Replacing fatigued coils with the FEXON modules restores ignition energy, which helps with consistent starting and smoother engine operation. While individual results depend on the rest of the ignition and fuel systems, fresh coils reduce misfires and improve combustion stability.

• Increases ignition intensity for more reliable spark
• Helps reduce rough idling and intermittent stalling
• Promotes more complete combustion for steadier throttle response
• Designed to maintain electrical performance under normal mower loads

What should I check before and after replacing coils?

Before installation, verify model compatibility and inspect wiring, connectors, and mounting surfaces for damage. After fitting the new coils, test-start the engine and observe idle stability, throttle response, and spark behavior to confirm proper operation.

• Verify engine part number against the compatibility list
• Inspect spark plug condition and gap for best results
• Ensure connectors are clean, dry and properly seated
• Run the engine and check for improved starting and smoother operation

Who is this for: The FEXON Ignition Coil Module 2-pack is intended for lawn mower owners, small-engine technicians and maintenance shops working on Kohler KT, ZT, SV and 7000 series engines that require OE-equivalent ignition coils. Choose this set if you need a straightforward, OEM-dimension replacement to restore ignition reliability without custom modifications. If your mower exhibits poor starts, misfires, or uneven running and the engine model matches the compatibility list, these coils offer a practical repair option sold in a convenient pair for balanced performance.