Kuupo Ignition Coil for Kohler Engines - 14-584-04-S Replacement Kit with Spark Plug, Fits XT149 XT173 XT650 XT675 XT775 XT800

Kuupo 14-584-04-S is a direct-fit ignition coil kit designed to replace Kohler part 1458404S and restore spark delivery on compatible small engines.

This ignition coil assembly from Kuupo is made as a replacement part for a range of Kohler engines used in lawn mowers and light outdoor equipment. It ships as a kit that includes a matched coil and a spark plug, and it’s built to meet the electrical and mounting specifications of the OEM part numbers listed. Before purchasing, confirm your engine model and part number to ensure proper fitment.

Which Kohler engines will this Kuupo coil fit?

This coil is compatible with several Kohler single-cylinder engines commonly found in residential mowers and similar equipment. It lists multiple model families and horsepower ranges, making it suitable for repairs where the original part number matches.

• Fits Kohler models: XT149, XT173, XT650, XT675, XT775, XT800, HD775
• Also compatible with XTX650, XTX675, XTX775, XT6.5, XT6.75, XT7 variants
• Designed for 6.5 hp, 6.75 hp and 7.75 hp engine applications

How do I replace the old ignition coil with this Kuupo unit?

Swapping the coil is straightforward for anyone familiar with basic small-engine maintenance: remove the engine shroud, disconnect the spark plug lead and mounting screws, then reverse the steps to install the new coil. Always follow safety procedures—disconnect battery or ignition source and ensure the engine is cool.

• Remove engine cover and disconnect spark plug wire before starting
• Unbolt old coil and note flywheel gap and mounting orientation
• Install new coil, set air gap if required, reconnect wires and test for spark

What comes in the Kuupo 14-584-04-S package and what should I check on arrival?

The package contains one ignition coil and one compatible spark plug to help you get the engine running right away. On arrival, inspect the coil mounting tabs, plug connection, and insulation for shipping damage and verify the part numbers against your engine.

• Included: 1 x Kuupo ignition coil, 1 x spark plug
• Check mounting hole alignment and lead length for proper fit
• Verify that the part number matches your Kohler engine documentation

Will this replacement coil restore reliable spark and engine starting?

This Kuupo coil is built to replicate the ignition characteristics of the OEM unit and is intended to restore spark quality when the original coil has failed. While it should resolve coil-related misfires or no-start conditions, diagnose the full ignition and fuel systems when problems persist.

• Replaces OEM part numbers 1458404S, 14 584 04-S, 14-584-04-S
• Intended to fix coil-related ignition failures and intermittent spark
• If issues continue, check flywheel magnets, plug condition, and wiring

Who is this for: The Kuupo 14-584-04-S is aimed at homeowners, lawn-care technicians, and DIY mechanics who maintain Kohler-powered mowers or small equipment and need a dependable, ready-to-install replacement coil kit. If you’re restoring spark, replacing a damaged coil, or keeping a spare on hand for seasonal maintenance, this kit offers a cost-effective option — just confirm compatibility with your engine model and part number before ordering.