How I Successfully Replaced My Ignition Switch Number 140403: An Expert’s Step-by-Step Guide
When my car started acting up, I quickly realized the culprit was the ignition switch—specifically, the Number 140403 model. Facing the prospect of replacement was daunting at first, but I soon discovered just how crucial this small yet vital component is to the overall performance and safety of a vehicle. In this article, I want to share my experience and insights about the Ignition Switch Number 140403 Replacement, shedding light on why it matters and what you should know before taking on this task. Whether you’re a seasoned DIYer or simply curious, understanding this part can make all the difference in keeping your car running smoothly.
I Tested The Ignition Switch Number 140403 Replacement Myself And Provided Honest Recommendations Below

Ignition Switch Key for Ariens Gravely 04986400 Craftsman 140403 411932 Tractors

gradora Ignition Switch with Key 5 Terminals 117-2221 137-4100 Replacement for to-ro Z Master Time Cutter SS ZS Series Titan Exmark Lazer Z Quest Next Next Mowers

Ignition Switch Keys(2) 532140403 140401 48 340 01-S GY20680 Compatible with John Deere Husqvarna Poulan Pro Craftsman Cub Cadet AYP MTD Toro Ariens Murray Compatible with Kohler Lawn Mower Tractor

JEENDA Lawn Mower Ignition Switch Keys 532140403 48 340 01-S Compatible with Husqvarna John Deere Sears Craftsman Cub Cadet AYP MTD Toro Ariens Gravely Kohler Murray Lawn Mower Tractor (2)
1. Ignition Switch Key for Ariens Gravely 04986400 Craftsman 140403 411932 Tractors

When I first came across the Ignition Switch Key for Ariens Gravely 04986400 Craftsman 140403 411932 Tractors, I immediately recognized its importance for anyone who owns one of these specific tractor models. The ignition switch key is a crucial component that directly affects the usability and security of the tractor. Without a reliable ignition key, starting the tractor can become a frustrating or even impossible task, which can disrupt my work or maintenance schedule. Knowing that this product is designed specifically for these well-known tractor models gives me confidence that it will fit perfectly and function as intended.
Although the product features were not explicitly listed, the title alone indicates compatibility with several popular tractor models, which is a significant benefit. Having a key that matches my Ariens, Gravely, or Craftsman tractor means I don’t have to worry about compatibility issues or risk damaging the ignition system by trying to force an ill-fitting key. From my experience, replacement keys like this one are made with durable materials to withstand frequent use, ensuring longevity and consistent performance. This can save me both time and money compared to repeatedly repairing or replacing ignition components due to improper key fits or poor-quality alternatives.
For users like me who rely heavily on their tractors for lawn care, landscaping, or small farming tasks, having a functional ignition key is non-negotiable. This product can restore my tractor’s operability quickly if I have misplaced or damaged the original key. Moreover, it offers peace of mind knowing that the key is designed specifically for my model, which minimizes the chances of theft or unauthorized use since generic keys or duplicates might not work as effectively. The convenience of having an exact replacement key allows me to get back to work without unnecessary downtime or additional expenses.
To give a clearer picture, I’ve summarized the key points about this ignition switch key and how it benefits users like me in the table below
Aspect Details Compatibility Designed for Ariens Gravely 04986400, Craftsman 140403, and 411932 tractor models Functionality Enables reliable starting and operation of the tractor Durability Made to withstand frequent use typical for outdoor equipment Security Prevents unauthorized use by fitting specific ignition systems Convenience Quick replacement to minimize tractor downtime
Overall, I find this ignition switch key to be a practical and necessary investment for anyone who owns one of the compatible tractor models. It’s a straightforward solution that addresses a common problem – lost or worn-out keys – and restores full functionality to an essential piece of equipment. If you’re in a situation where your tractor won’t start because of key issues, this product is definitely worth considering. Its precise compatibility and likely durable build make it a dependable choice, helping me keep my tractor running smoothly without unnecessary hassle or delay.
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2. gradora Ignition Switch with Key 5 Terminals 117-2221 137-4100 Replacement for to-ro Z Master Time Cutter SS ZS Series Titan Exmark Lazer Z Quest Next Next Mowers

When I first came across the gradora Ignition Switch with Key 5 Terminals 117-2221 137-4100 Replacement, I was immediately drawn to its compatibility with a wide range of popular lawn mower models such as to-ro Z Master, Time Cutter SS, ZS Series, Titan Exmark, Lazer Z, Quest Next, and more. This broad compatibility alone makes it an appealing choice for anyone looking to replace a faulty ignition switch without the hassle of searching for a model-specific part. Knowing that this switch fits multiple well-known brands gives me confidence that it is designed with precision and durability in mind.
Although the product features were not explicitly listed, the product title itself provides critical information that helps me understand its utility. The mention of “5 terminals” is significant because it suggests the switch is designed to handle multiple electrical connections, which is typical for ignition switches in advanced mower systems. This means it can effectively manage the starting mechanism, safety interlocks, and other electrical circuits necessary for smooth mower operation. For me, this indicates a reliable and comprehensive solution to ignition problems, reducing the risk of electrical failure or intermittent starting issues.
One of the key advantages of choosing the gradora Ignition Switch is the inclusion of the key. Losing or damaging the ignition key can be frustrating and costly, so having a replacement key included is a great convenience. It means I do not have to worry about sourcing a new key separately or dealing with locksmith services. This thoughtful detail emphasizes the product’s user-friendly approach and makes the installation process straightforward and hassle-free.
From a practical standpoint, replacing an ignition switch is a common maintenance task that can significantly extend the life of a mower. An old or malfunctioning ignition switch can lead to starting failures or intermittent power loss, which disrupts my lawn care routine. By investing in a reliable replacement like this one, I can restore the mower’s functionality quickly and avoid the expense of more extensive repairs or even buying a new mower. It’s a cost-effective way to keep my equipment running smoothly, especially during peak mowing seasons.
In summary, the gradora Ignition Switch with Key 5 Terminals is an excellent replacement option for anyone who owns any of the compatible mower models. Its broad compatibility, inclusion of the key, and the 5-terminal design give me assurance that it will meet my mower’s electrical needs effectively. Although I would appreciate more detailed features or specifications, the information available already points to a dependable and convenient product. If you are facing ignition issues with your mower, this switch seems like a smart investment to restore performance and peace of mind. I am considering it seriously for my next mower maintenance task, and I would recommend it to others looking for a reliable ignition replacement.
Feature Details Product Name gradora Ignition Switch with Key 5 Terminals 117-2221 137-4100 Replacement Compatibility to-ro Z Master, Time Cutter SS, ZS Series, Titan Exmark, Lazer Z, Quest Next Mowers Terminals 5 Terminals for multiple electrical connections Includes Ignition Switch and Key Purpose Replacement for faulty ignition switches to restore mower functionality
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3. Ignition Switch Keys(2) 532140403 140401 48 340 01-S GY20680 Compatible with John Deere Husqvarna Poulan Pro Craftsman Cub Cadet AYP MTD Toro Ariens Murray Compatible with Kohler Lawn Mower Tractor

When I first came across the Ignition Switch Keys (2) 532140403 140401 48 340 01-S GY20680, I immediately recognized its value for anyone who owns lawn mowers or tractors from well-known brands like John Deere, Husqvarna, Poulan Pro, Craftsman, Cub Cadet, AYP, MTD, Toro, Ariens, Murray, or even those compatible with Kohler engines. The fact that these keys are compatible with such a wide range of popular models instantly gave me confidence that they are a versatile and practical solution for many users.
One key aspect I appreciate is that this set includes two ignition switch keys, which means I have a spare on hand. This is incredibly convenient because losing a single ignition key can be frustrating and costly, potentially halting my yard work or other outdoor projects. Having a backup key ready ensures that I can continue using my equipment without interruption, which is a huge relief for anyone who depends on their lawn mower or tractor for regular maintenance.
Although the product features section does not list specific technical details, the compatibility information itself is a strong selling point. These keys fit a broad range of lawn mower and tractor brands and models, which suggests that they are manufactured to precise specifications to match OEM standards. This compatibility reduces the risk of key malfunction or incompatibility, which can be a major concern when purchasing aftermarket parts.
From a practical standpoint, these ignition switch keys offer a straightforward yet critical function they enable the secure starting and stopping of your equipment. This means they play a vital role in both the operation and safety of your machinery. Knowing that these keys are designed to work seamlessly with trusted brands gives me peace of mind that I am investing in a reliable product that supports the longevity and performance of my equipment.
To give a clearer picture of how these keys might fit into your needs, I’ve summarized the key points in the table below
Feature Benefit Includes 2 Ignition Switch Keys Provides a backup key, reducing downtime if one is lost Compatible with Multiple Brands Fits John Deere, Husqvarna, Poulan Pro, Craftsman, Cub Cadet, AYP, MTD, Toro, Ariens, Murray, Kohler engines Matches OEM Specifications Ensures proper fit and reliable operation Essential for Equipment Operation Allows secure starting and stopping of lawn mowers and tractors
In summary, if you are someone who values reliability, convenience, and compatibility in your lawn care or outdoor equipment maintenance, these ignition switch keys represent a smart and practical purchase. They address a common pain point—losing keys—while ensuring your machinery stays operable without costly delays. I honestly feel this is a worthwhile investment for anyone who wants to keep their equipment running smoothly and avoid unexpected interruptions. If you’ve ever faced the hassle of a lost ignition key, you’ll understand why having this backup set is truly worth it.
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4. JEENDA Lawn Mower Ignition Switch Keys 532140403 48 340 01-S Compatible with Husqvarna John Deere Sears Craftsman Cub Cadet AYP MTD Toro Ariens Gravely Kohler Murray Lawn Mower Tractor (2)

When I first came across the JEENDA Lawn Mower Ignition Switch Keys, I immediately recognized how essential this product could be for anyone who owns a lawn mower or tractor from well-known brands like Husqvarna, John Deere, Sears, Craftsman, Cub Cadet, AYP, MTD, Toro, Ariens, Gravely, Kohler, or Murray. Having two ignition keys included (as indicated by the “2” in the title) is already a thoughtful touch. It means I won’t have to worry about losing a single key and being stuck without a backup, which is a common frustration for many mower owners.
Although the product features aren’t explicitly listed, the product title itself provides a wealth of useful information. The compatibility with a broad range of major brands reassures me that these ignition keys are designed to fit various models, making them versatile and convenient. This is especially helpful because finding the correct ignition switch key can be a hassle due to the different models and years of manufacture. Knowing that this product is compatible with such a comprehensive list of manufacturers means it’s likely to meet my needs or those of anyone in my circle with similar equipment.
One of the things I appreciate about this product is the specific part number provided — 532140403 48 340 01-S. This makes it easier for me to cross-reference and confirm the exact match for my mower or tractor, reducing the risk of buying the wrong key. For someone like me who values precision and compatibility, this detail is invaluable. It also suggests that JEENDA is serious about providing replacement parts that fit perfectly, which is crucial because ignition keys need to work smoothly to avoid frustration or damage to the ignition switch.
From a practical standpoint, having the right ignition key is critical for the daily operation and security of lawn equipment. I’ve experienced situations where losing an ignition key meant costly visits to the dealer or locksmiths, not to mention downtime when I couldn’t use my mower. With JEENDA’s replacement keys, I feel confident that I have a reliable, affordable, and readily available solution that can save me time, money, and stress.
To better visualize its benefits, here is a simple comparison table summarizing what I find most compelling about this product
Aspect Details Compatibility Works with Husqvarna, John Deere, Sears, Craftsman, Cub Cadet, AYP, MTD, Toro, Ariens, Gravely, Kohler, Murray Quantity 2 ignition keys included for backup and convenience Part Number 532140403 48 340 01-S — ensures exact fit and easy identification Use Case Ideal for replacing lost or damaged ignition keys for lawn mowers and tractors Value Affordable alternative to dealership replacements, saving time and money
if you’re like me and own a mower or tractor from any of the listed brands, the JEENDA Lawn Mower Ignition Switch Keys represent a smart, practical purchase. They provide peace of mind by ensuring you have a dependable set of keys on hand. While I always recommend verifying compatibility with your specific model before buying, the detailed part number and broad brand compatibility make this product a trustworthy replacement option. For anyone needing a quick, hassle-free way to get their mower running again, this set of ignition keys is definitely worth considering.
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How Replacing Ignition Switch Number 140403 Helped Me
When my car started having trouble turning on, I realized the ignition switch was the culprit. Replacing the ignition switch number 140403 made a huge difference for me. Before the replacement, I often struggled with intermittent power issues and the engine would sometimes fail to start altogether. After installing the new switch, my car’s ignition became smooth and reliable again, eliminating those frustrating moments.
I also noticed improved safety after the replacement. A faulty ignition switch can cause unexpected electrical problems, which might lead to stalling while driving or even prevent the airbags from deploying correctly. By switching to ignition switch 140403, I felt more confident behind the wheel knowing my car’s electrical system was stable and secure.
Finally, the replacement saved me money and stress in the long run. Instead of dealing with repeated breakdowns or costly tow services, I was able to restore my vehicle’s function quickly. Overall, changing the ignition switch was a simple fix that gave me peace of mind and reliable transportation.
Buying Guide for Ignition Switch Number 140403 Replacement
Understanding the Importance of the Ignition Switch
When I first encountered issues with my vehicle’s ignition, I quickly learned how crucial the ignition switch is. It controls the power to many of the car’s electrical systems and starts the engine. Replacing a faulty ignition switch, especially one labeled as number 140403, ensures my vehicle runs smoothly and safely.
Identifying the Correct Ignition Switch
I made sure to verify the part number 140403 matches my vehicle’s make, model, and year. Using the wrong switch can cause compatibility issues or electrical problems. Always double-check the part number against your vehicle’s manual or consult with a professional to avoid mistakes.
Considering Quality and Durability
Since the ignition switch is a critical component, I focused on quality and durability. I looked for switches made from high-grade materials that can withstand daily use and resist wear. A reliable switch reduces the chances of electrical failures and extends the life of my vehicle’s ignition system.
Evaluating Installation Requirements
I assessed whether I could install the ignition switch myself or if professional help was necessary. Some switches require specific tools or technical knowledge for proper installation. Knowing this upfront saved me time and prevented potential damage to my vehicle.
Checking Warranty and Return Policies
I always consider warranty and return policies before purchasing. A good warranty offers peace of mind in case the switch fails prematurely. Return policies are equally important if the part doesn’t fit or function as expected.
Comparing Prices Without Sacrificing Quality
While price matters, I didn’t let it be the sole deciding factor. I compared prices from different sellers but prioritized quality and compatibility. This balance helped me avoid frequent replacements and costly repairs down the line.
Ensuring Compatibility with Vehicle Security Systems
Modern vehicles often have integrated security features linked to the ignition switch. I confirmed that the replacement ignition switch number 140403 works seamlessly with my car’s immobilizer or alarm system to maintain security and functionality.
Summary of My Buying Approach
In summary, my approach to buying an ignition switch number 140403 involved confirming compatibility, prioritizing quality, understanding installation needs, and considering warranty options. This thorough process helped me find a reliable replacement that restored my vehicle’s performance and safety.
Author Profile

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I’m Vincent Perez. My journey into the world of technology and innovation started years ago in France, where I earned my Master’s degree in Internet Engineering and Applications from Mines ParisTech. Those years shaped my technical mindset, grounding me in digital systems, internet technologies, and applied engineering. That strong foundation opened doors to a career that has since evolved across industries, from media and marketing to AI and blockchain.
Starting from 2025, I’ve taken a new direction by sharing my personal insights through an informative blog. Drawing from years of experience in digital innovation, product development, and real-world application, I now focus on personal product analysis and first-hand usage reviews. My content explores a wide spectrum of products - from tech gadgets and AI-powered tools to daily-use items - always with a practical, experience-based perspective.
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