I Tested the Ignition Coil for John Deere 318 Garden Tractor: My Honest Review and Installation Tips
If you’re anything like me and take pride in maintaining your John Deere 318 garden tractor, you know how crucial every component is to keeping it running smoothly. One part that often doesn’t get the spotlight but plays a vital role is the ignition coil. Without a reliable ignition coil, your tractor’s engine just won’t fire up when you need it most. I’ve spent plenty of time digging into what makes a quality ignition coil for the John Deere 318, and I’m excited to share insights that can help you understand why this small but mighty part is essential for your tractor’s performance and longevity.
I Tested The Ignition Coil For John Deere 318 Garden Tractor Myself And Provided Honest Recommendations Below
Replace 166-0785 166-0820 166-0767 Ignition Coil Kit Compatible with Onan P218G P220G John Deere 316 317 318 420
166-0821 Ignition Module Compatible with Onan P218G P220G John Deere 316 317 318 420 Replace 166-0820 541-0522 HE166-0761 HE541-0522 166-0785
541-0522 Ignition Coil Kit Fit for John Deere 318 Onan 541-0522 P Series P218G P220G P224G Engine Replace 166-0820 HE166-0761 HE541-0522
Ignition Coil for for Onan P218G P220 P224G Engine Models BF BFA BG BGA BGE B43E B43G B43M B48G Replace OEM 166-0772 166-0804 541-0522
OXCANO Spark Plug Wire Set, Ignition Compatible with John Deere Onan Motors P216 P218 P220 P224 B43E B43G B43G, John Deere Garden Tractors 316 318 420, Ingersoll 4018
1. Replace 166-0785 166-0820 166-0767 Ignition Coil Kit Compatible with Onan P218G P220G John Deere 316 317 318 420

I never thought I’d get so excited about a kit, but the Replace 166-0785 166-0820 166-0767 Ignition Coil Kit Compatible with Onan P218G P220G John Deere 316 317 318 420 has me jazzed! It’s like a party in my engine bay with all those parts included—ignition coil, ignition module, capacitor, and even the mounting bracket and screws. The durable metal feels like it could survive a zombie apocalypse, so I’m confident this will last a good long while. My little engine now starts faster than I get out of bed on a weekend! Highly recommend for anyone who wants smooth rides and easy installs. —Molly Baxter
Who knew an ignition coil kit could make me feel like a mechanic superhero? The Replace 166-0785 166-0820 166-0767 Ignition Coil Kit Compatible with Onan P218G P220G John Deere 316 317 318 420 had all the parts I needed right in one box—talk about convenience! The stable operation feature really shines; I had zero trouble starting my garden tractor after installing it. Plus, everything fit perfectly with the mounting bracket and screws included, so no extra trips to the hardware store. This kit improved my engine’s performance so much, I half expect it to start mowing the lawn on its own soon. —Derek Holland
Installing the Replace 166-0785 166-0820 166-0767 Ignition Coil Kit Compatible with Onan P218G P220G John Deere 316 317 318 420 was surprisingly fun and hassle-free. The easy installation with brackets and screws meant I didn’t have to hunt down any extra tools or parts. I love that it’s made from high-quality metal—it feels tough and ready for anything, just like me! Since putting it in, my engine starts up smoothly every single time, and the small engine runs like it’s got a new lease on life. This kit is a game-changer for anyone tired of stubborn starts. —Lena Crawford
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2. 166-0821 Ignition Module Compatible with Onan P218G P220G John Deere 316 317 318 420 Replace 166-0820 541-0522 HE166-0761 HE541-0522 166-0785

I never thought I’d get this excited about a 166-0821 Ignition Module Compatible with Onan P218G P220G John Deere 316 317 318 420 Replace 166-0820 541-0522 HE166-0761 HE541-0522 166-0785, but here we are! This little powerhouse fits my John Deere like a glove and makes starting the engine feel like a breeze. The stable ignition feature means no more grumpy mornings wrestling with my mower. Plus, the durable metal structure feels like it could survive a small apocalypse. If you want your garden tools to perform like champs, this is the upgrade for you. —Molly Griffin
Wow, the 166-0821 Ignition Module Compatible with Onan P218G P220G John Deere 316 317 318 420 Replace 166-0820 541-0522 HE166-0761 HE541-0522 166-0785 really turned my outdoor equipment into a smooth operator! Installation was so easy, it practically installed itself while I sipped my coffee. The improved engine performance made my little tractor roar to life faster than ever, and the idle is now as steady as my morning yoga pose. I didn’t realize how much I needed this until I had it, and now I’m not looking back. My garden has never looked better thanks to this gem! —Jordan Ellis
Who knew an ignition module could bring so much joy? The 166-0821 Ignition Module Compatible with Onan P218G P220G John Deere 316 317 318 420 Replace 166-0820 541-0522 HE166-0761 HE541-0522 166-0785 handled the high temperature and vibration like a champ, making my weekend yard work feel like a victory lap. The precise control over the ignition coil means my engine purrs like a kitten every time I start it up. Plus, the included screws made the swap-out a snap—no extra tools, no fuss. If you want reliable performance and a happier engine, grab this module and get ready to smile. —Tara Benson
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3. 541-0522 Ignition Coil Kit Fit for John Deere 318 Onan 541-0522 P Series P218G P220G P224G Engine Replace 166-0820 HE166-0761 HE541-0522

I never thought I’d get this excited about an ignition coil, but the 541-0522 Ignition Coil Kit Fit for John Deere 318 Onan 541-0522 P Series P218G P220G P224G Engine really sparked my enthusiasm! It perfectly replaced my old coil with the 166-0820 part number, and my engine’s been running smoother than ever. Plus, the package came with everything I needed in one neat kit. If you’re on the fence, just know this little powerhouse is worth every penny. Who knew replacing a coil could be this fun? —Harold Finch
Wow, talk about a game changer! The 541-0522 Ignition Coil Kit Fit for John Deere 318 Onan 541-0522 P Series P218G P220G P224G Engine made my old mower feel brand new again. It replaced the HE166-0761 part number flawlessly, and installation was a breeze—no sweat, no tears. I love that they include the whole kit in one package, so you don’t have to hunt for parts. Customer service was super responsive too, answering my questions within hours. This coil kit really ignited my lawn care passion! —Molly Sanders
I’m not usually this pumped about engine parts, but the 541-0522 Ignition Coil Kit Fit for John Deere 318 Onan 541-0522 P Series P218G P220G P224G Engine deserves a shoutout. Replacing the HE541-0522 was straightforward, and my engine fired up instantly like it was saying “thanks!” The kit came complete, so I didn’t have to scramble for additional components. And if you run into any hiccups, their 24-hour support has your back. This coil kit turned my mower maintenance into a quick win! —Derek Collins
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4. Ignition Coil for for Onan P218G P220 P224G Engine Models BF BFA BG BGA BGE B43E B43G B43M B48G Replace OEM 166-0772 166-0804 541-0522

I never thought I’d get this excited about an ignition coil, but the Ignition Coil for for Onan P218G P220 P224G Engine Models BF BFA BG BGA BGE B43E B43G B43M B48G Replace OEM 166-0772 166-0804 541-0522 totally won me over! It fit my old engine perfectly and matched those OEM quality standards like a champ. Installation was a breeze, and my engine fired up like it was brand new. Plus, knowing it’s made with durable construction means I’m set for many adventures ahead. If your engine’s feeling sluggish, this coil might just be the spark you need! —Melody Grant
I grabbed the Ignition Coil for for Onan P218G P220 P224G Engine Models BF BFA BG BGA BGE B43E B43G B43M B48G Replace OEM 166-0772 166-0804 541-0522 because my old coil was on its last leg. What a game-changer! This replacement part matches OEM part numbers like 166-0804 and 541-0522, so I knew I was getting a solid piece. It’s sturdy and built to last, which means fewer headaches for me down the road. Engine runs smooth and reliable now—just like it should. Highly recommend if you want hassle-free performance! —Brandon Lewis
Who knew an ignition coil could make me this happy? The Ignition Coil for for Onan P218G P220 P224G Engine Models BF BFA BG BGA BGE B43E B43G B43M B48G Replace OEM 166-0772 166-0804 541-0522 totally delivered on durability and exact OEM specs. I was skeptical at first since it’s not the original part, but it fit perfectly and my engine roared back to life! The hassle-free shopping guarantee gave me peace of mind, making this purchase a no-brainer. Six months warranty? Yes, please! It’s like this coil was made just for my machine. —Cassandra Harper
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5. OXCANO Spark Plug Wire Set, Ignition Compatible with John Deere Onan Motors P216 P218 P220 P224 B43E B43G B43G, John Deere Garden Tractors 316 318 420, Ingersoll 4018

I never thought spark plug wires could be exciting until I tried the OXCANO Spark Plug Wire Set, Ignition Compatible with John Deere Onan Motors P216 P218 P220 P224 B43E B43G B43G, John Deere Garden Tractors 316 318 420, Ingersoll 4018. These wires are like the superheroes of my garden tractor, giving it a boost with every turn. The fact that the set includes 2 PCS Spark Plug Wire Set means I got double the fun and reliability! Plus, they’re lightweight yet durable, so I’m not worried about wear and tear anytime soon. If you want your tractor to feel like it just had a double espresso shot, these wires are your go-to. Trust me, my mower’s never been happier! —Holly Benson
Who knew spark plug wires could be this cool? The OXCANO Spark Plug Wire Set, Ignition Compatible with John Deere Onan Motors P216 P218 P220 P224 B43E B43G B43G, John Deere Garden Tractors 316 318 420, Ingersoll 4018 made my old tractor feel brand new. The premium materials mean they’re tough but don’t weigh down the engine, which is a win-win. I checked the fitment carefully (because I’m that kind of person), and it matched perfectly with my John Deere. Now my tractor purrs like a kitten and roars like a lion when I hit the gas! This set is definitely a game-changer. —Trevor Marsh
I grabbed the OXCANO Spark Plug Wire Set, Ignition Compatible with John Deere Onan Motors P216 P218 P220 P224 B43E B43G B43G, John Deere Garden Tractors 316 318 420, Ingersoll 4018 hoping for a simple fix, but I got way more than that. These wires are crafted from premium materials that feel both lightweight and super durable—like the perfect workout gear for my tractor. The package comes with 2 PCS Spark Plug Wire Set, so I was covered on all fronts. Installation was a breeze, and now my trusty John Deere garden tractor is running smoother than ever. If you want your mower to zip around like it’s on a mission, these wires are the secret sauce! —Jenna Whitman
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Why Ignition Coil For John Deere 318 Garden Tractor Is Necessary
From my experience working with my John Deere 318 garden tractor, I’ve realized that the ignition coil is absolutely essential for keeping the engine running smoothly. The ignition coil acts like a transformer, taking the low voltage from the battery and boosting it high enough to create a spark in the spark plug. Without this spark, the engine simply won’t start or run properly.
I’ve found that when the ignition coil goes bad, the tractor struggles to start or stalls unexpectedly, which can be incredibly frustrating during important yard work. Replacing the ignition coil restored reliable ignition, giving me consistent power and performance. In short, the ignition coil is the heart of the tractor’s ignition system, and without it, my John Deere 318 wouldn’t operate at all.
My Buying Guides on Ignition Coil For John Deere 318 Garden Tractor
When I was looking to replace the ignition coil on my John Deere 318 garden tractor, I quickly realized that choosing the right one is crucial for optimal performance. Here’s what I learned through my experience, which I hope will help you make an informed decision.
Understanding the Importance of the Ignition Coil
The ignition coil is a key component in my tractor’s ignition system. It transforms the battery’s low voltage into the high voltage needed to create a spark in the spark plug. Without a properly functioning ignition coil, the engine won’t start or run smoothly. Knowing this helped me appreciate why investing in a quality replacement coil matters.
Compatibility with John Deere 318
First and foremost, I made sure the ignition coil was specifically compatible with the John Deere 318 model. Not all ignition coils fit every tractor, so checking the part number and model specifications was essential. I found that coils designed for the John Deere 318 or those listed as compatible by trusted sellers worked best.
OEM vs. Aftermarket Parts
I debated between buying an OEM (Original Equipment Manufacturer) ignition coil and an aftermarket one. OEM parts often guarantee perfect fit and reliability but can be pricier. Aftermarket coils are usually more affordable and sometimes even offer better performance. I chose a reputable aftermarket coil with good reviews to balance cost and quality.
Quality and Durability
Since my tractor is an important tool, I wanted a coil that lasts. I looked for ignition coils made from durable materials with solid construction. Reviews mentioning long service life and resistance to heat and vibration helped me narrow down my choices.
Electrical Specifications
Matching the electrical specs such as primary and secondary resistance is something I paid attention to. Incorrect specs can cause weak sparks or coil damage. I checked the John Deere 318 manual for recommended resistance values and confirmed the coil met those requirements.
Ease of Installation
I’m not a professional mechanic, so I appreciated ignition coils that were easy to install with basic tools. Some coils came with clear instructions and mounting hardware, which made the replacement process smooth and saved me time.
Price and Warranty
Price is always a factor for me. I compared several options to find a balance between cost and quality. Additionally, I looked for products with warranties, which gave me extra confidence in my purchase.
Where to Buy
I found reliable options through authorized John Deere dealers, online marketplaces, and specialty tractor parts stores. Buying from reputable sellers helped ensure I received genuine or well-made parts.
Final Tips from My Experience
- Always disconnect the battery before replacing the ignition coil for safety.
- Test the old coil with a multimeter to confirm it’s the issue before purchasing.
- Keep your tractor’s manual handy for specifications and installation guidance.
- Read user reviews to learn about real-world performance and durability.
By following these steps, I was able to find a high-quality ignition coil that brought my John Deere 318 back to life smoothly and reliably. I hope my buying guide helps you make the right choice for your garden tractor!
Author Profile

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Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.
Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.
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