RANSOTO Ignition Coil Module for Kohler KT740/KT745/ZT740 — OEM-fit Plug-and-Play Replacement

RANSOTO Ignition Coil Module is a plug-and-play replacement coil designed to restore reliable spark and ignition energy for Kohler KT740, KT745 and ZT740 engines.

When a lawn tractor or commercial mower won’t start easily or runs unevenly, the ignition coil is often the culprit. This RANSOTO module matches OEM fit and electrical output for Kohler KT740, KT745 and ZT740 engines and replaces part numbers 32-584-09-S, 32-584-24-S, 32-584-25-S and 3258425. It’s built to simplify installation and bring ignition performance back to specification so the engine starts promptly and maintains smoother operation under load.

How does this coil improve starting and throttle response?

The coil raises the available ignition energy, producing a stronger, more consistent spark. That helps the air/fuel mixture ignite more reliably across different engine speeds, reducing misfires and hesitation.

• Higher spark intensity for easier cold starts
• Reduced stumble during throttle changes
• Consistent spark at idle and under load

Will this unit fit my Kohler KT740, KT745 or ZT740 engine?

This module is made to match the mounting pattern and electrical connections used by those Kohler models. It directly replaces the OEM part numbers listed, so no modifications are required when your engine originally used those part numbers.

• Compatible with Kohler KT740, KT745, ZT740
• Direct replacement for 32-584-09-S, 32-584-24-S, 32-584-25-S, 3258425
• Mounting and plug layout mirrors original equipment

How difficult is the installation for a DIY mechanic?

Installation is straightforward for anyone comfortable with basic small-engine service. The unit is plug-and-play: remove the old coil, transfer any mounting hardware or connectors, and install the new module in the same location.

• No special tools required beyond common hand tools
• Preserve original bracket and fasteners for alignment
• Reconnect plug and verify spark before reassembly

What warranty or support does RANSOTO provide?

RANSOTO offers warranty support for products received damaged or deformed. Contact customer service with photos of the item and packaging to initiate warranty service and arrange a replacement or resolution.

• Warranty covers shipping damage and manufacturing defects
• Contact via message with photos for faster handling
• Customer support assists replacement or refund processes

Who is this for: The RANSOTO Ignition Coil Module is intended for lawncare professionals, fleet managers, and homeowner mechanics who operate or maintain equipment powered by Kohler KT740, KT745 or ZT740 engines and need a reliable, direct-fit replacement for failed or aging ignition coils. It’s especially useful when engines show hard starting, intermittent misfires, or poor throttle response and you want a simple, OEM-compatible swap without complex tuning.