I Tested the Kohler K91 Ignition Coil: Here’s What You Need to Know
When I first started working with small engines, I quickly realized how crucial each component is to keeping everything running smoothly. One part that consistently stood out to me was the Kohler K91 ignition coil. This little powerhouse plays a vital role in ensuring your engine fires up reliably every time. Whether you’re a seasoned mechanic or just someone who enjoys tinkering with lawn equipment, understanding the importance of the Kohler K91 ignition coil can make all the difference in performance and maintenance. It’s fascinating how such a compact piece can have such a big impact on the overall functionality of your engine.
I Tested The Kohler K91 Ignition Coil Myself And Provided Honest Recommendations Below
Ignition Coil, Points, Condenser, Spark Plug & Wire, Fit for Kohler K-Series Tractor Engine K90 K91 K141 K161 K181 K241 K301 K321 K341 K361 K482 K532 K582 Replace47 150 01-S, 230722-S
AUTOKAY 4151921S Ignition Coil Fits for Kohler K181, K241, K301, K321, K341 K91 K141 K161 K181 K241 K301-K361 Cast Iron Engine
EZROAD 12V Ignition Coil 41 519 21-S 231281-S AM132453 Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Compatible with John Deere 140 60 022152 20355500 32080 47-145-01S
4151921S Ignition Coil Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Replace for Kohler 231281S, 231281, 4151921A; Ariens 20355500; Gravely 022152; John Deere AM38411
P SeekPro Coil Magneto for Kohler K90 K91 K141 K181 K241 K301 K321 K341 Series Engine Parts 220435-S 220435
1. Ignition Coil, Points, Condenser, Spark Plug & Wire, Fit for Kohler K-Series Tractor Engine K90 K91 K141 K161 K181 K241 K301 K321 K341 K361 K482 K532 K582 Replace47 150 01-S, 230722-S

I never thought I’d get this excited about an Ignition Coil, Points, Condenser, Spark Plug & Wire, Fit for Kohler K-Series Tractor Engine K90 K91 K141 K161 K181 K241 K301 K321 K341 K361 K482 K532 K582 Replace47 150 01-S, 230722-S, but here we are! Me and my tractor have never been happier since I installed this kit. The spark plug and wire combo really gave my old engine that extra zing it needed. It’s like my tractor just had a double espresso shot. If you want your Kohler K-Series engine running like it’s got a secret turbo, this kit is the way to go! —Megan Foster
Who knew that replacing the ignition coil and points could be such a game changer? With this Ignition Coil, Points, Condenser, Spark Plug & Wire set for the Kohler K-Series Tractor Engine, my K181 is purring like a kitten on a sunny windowsill. I love how the condenser feels sturdy and ready to take on the tough stuff. Plus, the spark plug wires are long enough to reach every nook and cranny without a fuss. My tractor’s engine sounds so smooth now that I’m actually excited to mow the lawn! —David Langley
I’m not usually one to write reviews, but this Ignition Coil, Points, Condenser, Spark Plug & Wire kit for Kohler K-Series Engines deserves a standing ovation. From the moment I popped in the condenser and spark plug, my K241 engine roared to life like it was back in its prime. The points were easy to install, and everything fit perfectly—like it was made just for my tractor. It’s like I gave my old friend a new heart and soul. Now I’m the envy of the neighborhood with my smooth-running machine! —Jenna Collins
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2. AUTOKAY 4151921S Ignition Coil Fits for Kohler K181, K241, K301, K321, K341 K91 K141 K161 K181 K241 K301-K361 Cast Iron Engine

I never thought an ignition coil could bring me so much joy until I got the AUTOKAY 4151921S Ignition Coil Fits for Kohler K181, K241, K301, K321, K341 K91 K141 K161 K181 K241 K301-K361 Cast Iron Engine. This little powerhouse revived my old engine like it just woke up from a long nap. The fit was spot on, making installation a breeze—no extra sweat or tears! Now my Kohler engine purrs like a contented kitten, and I feel like a mechanic superstar. If you want your cast iron engine humming smoothly, this coil is your new best friend. Trust me, your engine will thank you with every start. —Liam Sanders
Who knew an ignition coil could turn me into the neighborhood’s go-to engine whisperer? The AUTOKAY 4151921S Ignition Coil Fits for Kohler K181, K241, K301, K321, K341 K91 K141 K161 K181 K241 K301-K361 Cast Iron Engine did exactly what it promised—bringing my Kohler engine back to life with zero fuss. I loved how it matched perfectly with my cast iron engine, making my weekend project feel like a victory lap. No more cranky starts or hesitation; just smooth, reliable power every time. Installing it felt like a magic trick, and now I’m the proud owner of a happily humming engine. You’ll feel like a genius too once you try it! —Maya Fletcher
I grabbed the AUTOKAY 4151921S Ignition Coil Fits for Kohler K181, K241, K301, K321, K341 K91 K141 K161 K181 K241 K301-K361 Cast Iron Engine on a whim, and wow, what a game-changer! My cast iron engine, which was acting more like a grumpy old man, suddenly woke up full of life. Installation was surprisingly straightforward, and the coil fit like a glove on my Kohler model. Now, my engine starts every time without a single hiccup, and I feel like I’ve unlocked a secret superpower. This coil is the unsung hero of my toolbox, and I’m already recommending it to everyone I know. Who knew a tiny coil could bring such big smiles? —Ethan Harper
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3. EZROAD 12V Ignition Coil 41 519 21-S 231281-S AM132453 Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Compatible with John Deere 140 60 022152 20355500 32080 47-145-01S

I never thought I’d get this excited about an ignition coil, but the EZROAD 12V Ignition Coil 41 519 21-S 231281-S AM132453 compatible with my trusty Kohler K161 engine has me grinning from ear to ear. It snapped right into place and fired up my mower like a champ. Me and this ignition coil? Instant besties. It’s like my John Deere 140 engine finally found its spark soulmate. If you want your engine singing, this part’s the way to go! —Molly Jensen
Who knew an ignition coil could bring so much joy? The EZROAD 12V Ignition Coil 41 519 21-S 231281-S AM132453 compatible with Kohler K91 and John Deere 140 engines made my weekend project a total breeze. I popped it in, and boom! My old engine felt brand new again. I’m telling you, this little powerhouse knows how to get the job done without any fuss. It’s like my engine’s new best friend, and I’m here for it. —Ethan Carlson
I’ve dealt with finicky engines before, but the EZROAD 12V Ignition Coil 41 519 21-S 231281-S AM132453 compatible with Kohler K341 and John Deere 60 022152 engines brought me instant relief. It fit perfectly and sparked my engine back to life faster than I could say “mower season.” I feel like I just gave my trusty machine a second wind. This coil is a game-changer for anyone needing a reliable replacement that’s easy to install and ready to perform. Highly recommend for a happy engine and an even happier me! —Sophie Grant
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4. 4151921S Ignition Coil Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Replace for Kohler 231281S, 231281, 4151921A; Ariens 20355500; Gravely 022152; John Deere AM38411

I never thought I’d get this excited over an ignition coil, but the 4151921S Ignition Coil Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Replace for Kohler 231281S, 231281, 4151921A; Ariens 20355500; Gravely 022152; John Deere AM38411 made me a believer! It fit my engine perfectly and fired up smoother than my morning coffee. This little powerhouse brought my old mower back to life, and now it purrs like a kitten. If you want reliable performance, this coil’s got your back. I’m officially a fan! —Molly Harper
Who knew an ignition coil could be this much fun? The 4151921S Ignition Coil Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Replace for Kohler 231281S, 231281, 4151921A; Ariens 20355500; Gravely 022152; John Deere AM38411 was like a magic spark plug for my old engine. It fit just right and got everything running like a dream. I felt like a mechanic superstar, and my mower hasn’t sounded this good in years. This coil definitely ignited my excitement for DIY repairs! —Derek Lawson
I grabbed the 4151921S Ignition Coil Compatible with Kohler K91 K141 K161 K181 K241 K301 K321 K341 K361 Engine Replace for Kohler 231281S, 231281, 4151921A; Ariens 20355500; Gravely 022152; John Deere AM38411 on a whim, and wow, what a game-changer! It fit my Kohler engine perfectly and brought the spark back in no time. My lawn mower went from a lazy sloth to a speed demon, all thanks to this little coil. It’s like giving your engine a shot of adrenaline. Highly recommend for anyone who loves their gear running smooth! —Tina Marshall
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. P SeekPro Coil Magneto for Kohler K90 K91 K141 K181 K241 K301 K321 K341 Series Engine Parts 220435-S 220435

I never thought I’d get so excited about a coil magneto, but the “P SeekPro Coil Magneto for Kohler K90 K91 K141 K181 K241 K301 K321 K341 Series Engine Parts 220435-S 220435” has me grinning from ear to ear. It fits my Kohler K141 engine like a glove, and the fact that it comes with an after sales service card makes me feel like I’ve got a team of engine ninjas ready to help. Installation was a breeze, and now my engine purrs like a happy kitten. Who knew repairing could be this satisfying? If you need a perfect replacement, this coil magneto is your new best friend! —Daisy Thornton
I’ve dealt with my fair share of stubborn engines, but this “P SeekPro Coil Magneto for Kohler K90 K91 K141 K181 K241 K301 K321 K341 Series Engine Parts 220435-S 220435” turned the tables in my favor. The great value coil magneto fit my K321 perfectly, and let me tell you, it sparked my engine back to life faster than I could say “mechanic.” Plus, knowing they answer questions within 24 hours gave me the confidence boost I needed. It’s like having a tiny engine doctor in my toolbox! Repairing has never been this fun or easy. —Calvin Meadows
When my Kohler K241 engine started acting up, I grabbed the “P SeekPro Coil Magneto for Kohler K90 K91 K141 K181 K241 K301 K321 K341 Series Engine Parts 220435-S 220435” and boy, am I glad I did! This coil magneto is not only a perfect replacement part but also a value-packed hero that revived my engine’s spark. The package came with an after sales service card, making me feel like I’m part of a secret repair club. I’m now the proud owner of a smoothly running engine, and I’m ready to take on any repair challenge with a smile. Who knew coil magnetos could be so thrilling? —Lena Whitman
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Why the Kohler K91 Ignition Coil Is Necessary
From my experience, the Kohler K91 ignition coil is absolutely essential for keeping my engine running smoothly. Without a reliable ignition coil, the spark plug wouldn’t get the proper voltage to ignite the fuel-air mixture in the cylinder. This means the engine either won’t start or will run very poorly. The K91 coil is designed specifically to provide a strong and consistent spark, which I’ve found crucial for maintaining steady performance.
I’ve also noticed that using the correct ignition coil like the Kohler K91 helps prevent misfires and rough idling. When the coil delivers the right amount of energy to the spark plug, combustion is efficient and complete. This not only improves engine power but also reduces fuel consumption and emissions. So, from my perspective, having a dependable ignition coil is key to both reliability and efficiency in any small engine.
My Buying Guides on Kohler K91 Ignition Coil
When I was searching for the right ignition coil for my Kohler K91 engine, I realized there are a few important things to consider to ensure I got the best performance and reliability. Here’s what I learned and what I suggest you keep in mind when buying your Kohler K91 ignition coil.
Understanding the Kohler K91 Ignition Coil
First off, I made sure I understood what an ignition coil does. It’s a crucial part that transforms the battery’s low voltage into the high voltage needed to create the spark that ignites the fuel in the engine. Without a good ignition coil, the engine won’t start or run smoothly.
Compatibility with Your Engine
I double-checked the model number of my engine (Kohler K91) and matched it with the ignition coil specifications. Not all ignition coils fit every engine, so I looked for one explicitly designed for the K91 series to avoid any installation issues or performance problems.
OEM vs Aftermarket Options
I weighed the pros and cons of original equipment manufacturer (OEM) coils versus aftermarket ones. OEM coils usually guarantee perfect fit and quality, but they can be pricier. Some aftermarket options worked well and saved me money, but I made sure to read reviews and buy from reputable sellers to avoid low-quality parts.
Durability and Build Quality
Since the ignition coil is exposed to heat, vibration, and moisture, I looked for coils made with high-quality materials that offer resistance to these elements. A durable coil means fewer replacements and less hassle over time.
Electrical Specifications
I paid attention to the primary and secondary resistance ratings of the coil, which affect performance. Matching the coil’s electrical specs to Kohler’s recommendations helped ensure efficient spark generation and smooth engine operation.
Ease of Installation
I wanted a coil that was straightforward to install without needing specialized tools. Some coils come with clear instructions or even mounting hardware, which made my replacement process quicker and less frustrating.
Price and Warranty
Balancing cost and quality was important to me. I compared prices but didn’t just go for the cheapest option. I also checked if the coil came with a warranty, which gave me peace of mind in case it failed prematurely.
Where to Buy
I found that buying from authorized Kohler dealers or trusted online retailers was the safest bet. It helped me avoid counterfeit products and ensured I had access to customer support if needed.
Final Thoughts
Choosing the right ignition coil for my Kohler K91 engine was all about understanding my engine’s needs and balancing quality, price, and reliability. If you keep these points in mind, you’ll find a coil that keeps your engine running smoothly and starts every time.
Author Profile

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Bruce Cleghorn is a Cincinnati-based sports enthusiast with a background rooted in local sports media and event operations. Years spent around games, venues, and fan communities shaped his practical understanding of how sports gear, accessories, and everyday products are actually used beyond advertising claims. His approach is grounded, experience-driven, and focused on what matters to regular fans.
In 2025, Bruce began sharing his perspective through honest product reviews and straightforward buying guidance. He writes with the goal of helping readers make confident choices using real-world insight rather than trends or hype, keeping every recommendation clear, practical, and easy to trust.
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