---
product_id: 24592399
title: "Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part"
brand: "kohler"
price: "¥42323"
currency: JPY
in_stock: true
reviews_count: 10
category: "Kohler"
url: https://www.desertcart.jp/products/24592399-kohler-25-707-03-s-lawn-and-garden-equipment-engine
store_origin: JP
region: Japan
---

# Genuine OEM Kohler spark module Quick, reliable ignition upgrade Fits CH20, CH23, CH640 & CH740 engines Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part

**Brand:** kohler
**Price:** ¥42323
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s potential with genuine Kohler power!

## Quick Answers

- **What is this?** Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part by kohler
- **How much does it cost?** ¥42323 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/24592399-kohler-25-707-03-s-lawn-and-garden-equipment-engine)

## Best For

- kohler enthusiasts

## Why This Product

- Trusted kohler brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision OEM Fit:** Seamlessly replaces older modules for select Kohler engines, ensuring perfect compatibility and performance.
- • **Optimized for Longevity:** Durable design withstands heavy use, keeping your lawn equipment running strong season after season.
- • **Authorized Dealer Assurance:** Genuine Kohler part backed by official authorization for guaranteed quality and support.
- • **Enhanced Engine Reliability:** Upgrades ignition system for smoother starts and consistent power delivery, reducing downtime.
- • **Easy Installation with Clear Instructions:** Step-by-step guidance simplifies replacement, even for DIY enthusiasts, saving you time and hassle.

## Overview

This Kohler 25-707-03-S MDI Module Conversion Kit is a brand new, genuine OEM spark module designed specifically for select Kohler CH20, CH23, CH640, and CH740 model engines. Authorized by Kohler, it ensures precise fit and reliable ignition performance, enhancing engine start-up and operation. Ideal for professionals and DIYers seeking a durable, high-quality replacement part that boosts lawn and garden equipment efficiency.

## Description

Brand New Genuine Kohler MDI Module Conversion Kit... We are an Authorized Kohler Dealer... MDI Module Conversion Kit Genuine Kohler Part # 25-707-03-S Fits Specific Kohler CH20, CH23, CH640 & CH740 Model Engines (Fits a Select Few Spec #'s of Models Listed) Genuine OEM Kohler Part If you need assistance locating correct part, Please email Model, Spec and Serial numbers of your engine and we will gladly look up correct parts

Review: Performance - I purchased this kit for my older 26 hp Craftsman lawn tractor. It never had the conversion, after 800hrs, or so it appears as the spark modulator was still in place. I removed all the old parts as instructed, cleaned and installed the kit. Was not that difficult for a gear head. Best part is it works perfectly! All said the tractor runs better, starts a tad harder, not sure why yet but I'll get to that later on, might need re-jetting, runs rich I beleive. Overall I'm satisfied with it.
Review: Works and is reliable! - This was purchased to replace an old failed coil. The new design fit perfectly on my Kohler 27 hp with horizontal shaft. It is not hard to replace or setup these coils, but it is time consuming. I did have to remove the engine from the ZTR to remove the flywheel cover and flywheel. It's not hard, but it does take a few hours. The instructions are pretty straight forward. There is also an easy wiring harness modification; whereas, you have to remove unneeded wires from the removal of the old units.

## Features

- Brand New Genuine Kohler MDI Module Conversion Kit... We are an Authorized Kohler Dealer... MDI Module Conversion Kit Genuine Kohler Part # 25-707-03-S Fits Specific Kohler CH20, CH23, CH640 & CH740 Model Engines (Fits a Select Few Spec #'s of Models Listed) Genuine OEM Kohler Part If you need assistance locating correct part, Please email Model, Spec and Serial numbers of your engine and we will gladly look up correct parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00J34LNX2 |
| Best Sellers Rank | #228,582 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,893 in Lawn Mower Deck Parts |
| Customer Reviews | 4.7 4.7 out of 5 stars (390) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11 ounces |
| Manufacturer | Kohler |
| Product Dimensions | 20.32 x 20.32 x 10.16 inches |

## Images

![Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part - Image 1](https://m.media-amazon.com/images/I/313kkVq36IL.jpg)
![Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part - Image 2](https://m.media-amazon.com/images/I/31eTTfQOXzL.jpg)
![Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part - Image 3](https://m.media-amazon.com/images/I/41m+KbXzqiL.jpg)
![Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part - Image 4](https://m.media-amazon.com/images/I/51-OJIZOqlL.jpg)
![Kohler 25-707-03-S Lawn & Garden Equipment Engine Spark Module Assembly (replaces 24-584-52-S, 24-584-64-S, Genuine Original Equipment Manufacturer (OEM) part - Image 5](https://m.media-amazon.com/images/I/51xs97ZYzKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Performance
*by A***A on October 19, 2024*

I purchased this kit for my older 26 hp Craftsman lawn tractor. It never had the conversion, after 800hrs, or so it appears as the spark modulator was still in place. I removed all the old parts as instructed, cleaned and installed the kit. Was not that difficult for a gear head. Best part is it works perfectly! All said the tractor runs better, starts a tad harder, not sure why yet but I'll get to that later on, might need re-jetting, runs rich I beleive. Overall I'm satisfied with it.

### ⭐⭐⭐⭐⭐ Works and is reliable!
*by A***R on September 15, 2021*

This was purchased to replace an old failed coil. The new design fit perfectly on my Kohler 27 hp with horizontal shaft. It is not hard to replace or setup these coils, but it is time consuming. I did have to remove the engine from the ZTR to remove the flywheel cover and flywheel. It's not hard, but it does take a few hours. The instructions are pretty straight forward. There is also an easy wiring harness modification; whereas, you have to remove unneeded wires from the removal of the old units.

### ⭐⭐⭐⭐⭐ Perfect
*by R***0 on May 8, 2025*

Worked great

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-28*