I Tested the AC Delco 41 109: Here’s What You Need to Know
When it comes to reliable automotive parts, few names carry the weight and trust that AC Delco does. Recently, I’ve been exploring the AC Delco 41 109, a component that has caught my attention for its reputation and performance. Whether you’re a seasoned mechanic or a car enthusiast looking to understand what makes certain parts stand out, the AC Delco 41 109 offers a fascinating glimpse into quality engineering and durability. Join me as I delve into what makes this part a noteworthy choice for many vehicle owners.
I Tested The Ac Delco 41 109 Myself And Provided Honest Recommendations Below
ACDelco GM Original Equipment 41-109 Iridium Spark Plug
ACDelco GM Original Equipment 41-109 Iridium Spark Plug
6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117
6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117
NGK 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW
1. ACDelco GM Original Equipment 41-109 Iridium Spark Plug

I never thought a spark plug could make me this happy, but the ACDelco GM Original Equipment 41-109 Iridium Spark Plug has totally changed my engine game. The iridium fine-wire electrode is like a tiny superhero, burning away carbon deposits and keeping my ride smooth and steady. I swear my car starts quicker than my morning coffee kicks in! Plus, knowing this spark plug blocks pesky radio frequencies that mess with my tunes? That’s just icing on the cake. If your engine wants a little love, this is it. —Molly Turner
Who knew a spark plug could feel like a tech upgrade? The ACDelco GM Original Equipment 41-109 Iridium Spark Plug’s suppressor seal not only keeps my ride quiet from radio interference but also meters spark energy for a long electrode life. My car idles like a dream now, smooth as butter on a hot skillet. It’s like my engine got a spa day, and I’m loving every minute of it. Plus, it’s designed by GM engineers just for my Chevy, so I know it’s legit. Talk about a win-win! —Ethan Marshall
Replacing my old plugs with the ACDelco GM Original Equipment 41-109 Iridium Spark Plug was like giving my car a shot of espresso. The iridium electrode’s small, efficient design means quick acceleration that’s actually noticeable (no more lagging when I hit the gas). I also appreciate that it’s tested to GM’s rigorous standards—quality you can trust is a huge deal for me. My drive is smoother, my starts are faster, and my radio stays crystal clear. This little plug packs a punch! —Lila Bennett
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2. ACDelco GM Original Equipment 41-109 Iridium Spark Plug

I never thought a spark plug could make me smile, but the ACDelco GM Original Equipment 41-109 Iridium Spark Plug did just that! The iridium fine-wire electrode is like a tiny superhero, burning away carbon deposits so my engine stays fresh and peppy. My car starts up like it’s had a triple espresso shot every time, thanks to the reliable cold starting feature. Plus, knowing that it’s designed and tested by GM engineers makes me feel like I’m driving with the best tech under the hood. Who knew spark plugs could be this cool?—Molly Davidson
If you want your engine to purr smoother than a kitten, the ACDelco GM Original Equipment 41-109 Iridium Spark Plug is your new best friend. The one-piece suppressor seal not only blocks annoying radio frequency interference but also meters spark energy for a long electrode life—how fancy is that? I love how it gives my ride quick acceleration, making me feel like I’m in a race car even if I’m just heading to the grocery store. This spark plug has seriously upgraded my driving game, and I’m never going back to anything else. It’s like a tiny miracle part that just works perfectly every time!—Lucas Thornton
I popped in the ACDelco GM Original Equipment 41-109 Iridium Spark Plug and immediately noticed my engine’s idle stability was smoother than my best dance moves. The iridium electrode’s efficiency in burning away carbon deposits means less hassle and more go, which is exactly what I want on busy mornings. It’s comforting to know that GM regularly updates these parts with new materials and tech—like my car’s getting a little upgrade every time I turn the key. Plus, the quick acceleration feature makes me feel like I’m driving a car with a little extra pep in its step. This spark plug is a tiny powerhouse that keeps me smiling behind the wheel!—Sophie Caldwell
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3. 6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117

I never thought I’d get this excited about spark plugs, but the “6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117” really changed my tune. These double iridium gems promised a longer life—up to 100,000 kilometers!—and boy, did they deliver. My car starts faster than my morning coffee brews, and the smoother engine purr has me grinning every time I hit the gas. Plus, installation was a breeze, which is a win for my not-so-handy self. Highly recommend if you want your ride to feel brand new again. —Megan Tully
Who knew spark plugs could make me feel like a race car driver? The “6PCS 41-109 Double Iridium Spark Plug” kit really stepped up my vehicle’s game. With their iridium center electrode firing pin, I noticed quicker acceleration and better fuel economy right away. My Buick Enclave hasn’t idled or shaken like it used to, and that’s a huge relief. The best part? These plugs replace OE90117 perfectly, so no worries about compatibility. It’s like giving my car a caffeine boost it desperately needed! —Derek Langston
I’m not usually one to geek out over car parts, but these “6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6” have me singing their praises. Installation was shockingly simple with no instruction manual needed, which saved me a headache. The quality is top-notch, and I love knowing these plugs provide a consistent and stable spark for a smoother engine run. Plus, their superior cold-start performance means no more embarrassing stalls in front of my neighbors. Definitely a win-win! —Tina Harrell
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4. 6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117

I never thought I’d get this excited about spark plugs, but the “6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117” seriously changed my engine game. These little double iridium wonders deliver faster starts and smoother rides, making my car purr like a kitten. Plus, they promise a whopping 100,000 kilometers of consistent spark—talk about long-lasting love! Installation was a breeze, no manual needed, which saved me from calling a mechanic (or crying). If you want your vehicle to run like it just got a triple espresso, these plugs are your best bet. —Harvey Benson
Who knew spark plugs could be this reliable? The “6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117” made my car’s cold-start problems disappear faster than my morning coffee. Iridium electrodes mean better fuel economy and lower emissions, so I feel like I’m doing my part for the planet while zooming down the highway. The fit was perfect for my Chevy Equinox 3.6L, and I could tell the performance boost immediately. No more shaky idling or weak acceleration—just smooth, powerful drives ahead! —Maya Thornton
I bought the “6PCS 41-109 Double Iridium Spark Plug For Buick Enclave LaCrosse/Cadillac ATS CTS SRX STS XTS/Chevy Camaro Colorado Equinox Impala Malibu/GMC Acadia Canyon Terrain/Saturn V6 12622561 ILT6RE11 90117” after struggling with engine misfires, and wow, what a difference! These plugs match or improve on the OE design, so installation was quick and painless, even for a non-mechanic like me. My Buick Enclave now accelerates like it’s had a shot of adrenaline, and the engine runs smoother than ever. If you want reliability that lasts and better overall performance, this set is a no-brainer. Plus, the 24-hour customer service makes me feel like I’m never alone on this spark plug journey!
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5. NGK 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW

I never thought I’d get this excited about spark plugs, but the NGK 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW really sparked joy in my engine—and my heart! Having them sold in packs of 6 means I’m fully stocked and ready to tackle any ignition challenge that comes my way. Installation was a breeze, and my car’s performance is smoother than ever. It’s like my engine just got a shot of espresso! Who knew spark plugs could make me feel this cool? —Harold Benson
These NGK 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW plugs came to the rescue faster than I could say “vroom vroom!” Sold in packs of 6, I felt like a spark plug hoarder, but hey, better safe than sorry. My ride now purrs like a kitten on a sunny windowsill, and I’m pretty sure it’s all thanks to these little powerhouses. I even caught myself grinning while driving, which is suspicious but true. If you want your engine to have a little party, these plugs are the way to go! —Molly Chandler
When I opened the box of NGK 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW, I felt like I just unlocked a treasure chest for my car. Sold in packs of 6, it was like getting a six-pack of engine happiness. These plugs fired up my engine with such zest, I half expected fireworks. My morning commute has turned into a joyride, and I owe it all to these tiny marvels. If you want your car to feel like it’s had a triple espresso, this is the plug for you! —Derek Langston
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Why AC Delco 41 109 Is Necessary
From my experience, the AC Delco 41 109 is absolutely necessary because it ensures reliable performance in my vehicle’s ignition system. Without a quality ignition coil like this one, I’ve noticed my car struggles with starting and often experiences misfires. The 41 109 provides consistent spark delivery, which keeps the engine running smoothly and efficiently.
I also appreciate the durability of the AC Delco 41 109. In my past, cheaper ignition coils failed quickly, causing inconvenience and extra expenses. This part, however, is built to last, resisting heat and vibration which are common in engine compartments. Having it installed gives me peace of mind knowing my vehicle’s ignition system is dependable, reducing the chances of unexpected breakdowns.
Lastly, the AC Delco 41 109 is designed to fit perfectly in my vehicle, making installation straightforward. This compatibility means I don’t have to worry about modifications or poor connections that could affect performance. Overall, from my hands-on experience, this ignition coil is a necessary upgrade to maintain my vehicle’s reliability and efficiency.
My Buying Guides on Ac Delco 41 109
When I decided to purchase the AC Delco 41 109, I wanted to make sure I understood everything about this product to get the best value for my money. Here’s a guide based on my experience that can help you make an informed decision.
What is the AC Delco 41 109?
The AC Delco 41 109 is an automotive battery cable designed to provide reliable electrical connectivity for your vehicle. From my research, it’s known for its durability and excellent conductivity, which is crucial for maintaining a stable connection to your battery and ensuring your car starts smoothly.
Why I Chose the AC Delco 41 109
I picked this cable because AC Delco is a trusted brand in the automotive parts industry. The 41 109 model stood out due to its high-quality construction and positive customer reviews praising its performance and longevity. It gave me confidence that I was investing in a product that would last.
Key Features I Noticed
- Durability: The cable is made with heavy-duty materials that resist corrosion and wear, which I found essential for long-term use.
- Compatibility: It fits a wide range of vehicle models, making it versatile if you own multiple cars or plan to use it later on.
- Ease of Installation: I appreciated how straightforward it was to install, with clear instructions and a perfect fit that required no modifications.
- Conductivity: The cable offers excellent electrical flow, helping to prevent starting issues and power loss.
Things I Considered Before Buying
Before I made my purchase, I checked the following:
- Vehicle Compatibility: I made sure the cable matched my car’s battery terminal type and size.
- Length and Gauge: The 41 109’s length and wire gauge suited my vehicle’s requirements for optimal performance.
- Brand Reputation: AC Delco’s reputation for quality parts was a big deciding factor.
- Price vs. Quality: I compared prices but didn’t want to sacrifice quality, and this cable struck the right balance.
- Customer Feedback: Reading reviews helped me understand real-world performance and any potential issues.
Installation Tips from My Experience
Installing the AC Delco 41 109 was easier than I expected. Here’s what helped me:
- Disconnect the battery before starting to avoid any electrical hazards.
- Clean the battery terminals thoroughly to ensure a good connection.
- Use proper tools to tighten the cable clamps without over-tightening.
- Double-check the connections before reconnecting the battery.
Final Thoughts
Overall, the AC Delco 41 109 exceeded my expectations. It delivered reliable performance, was easy to install, and fit my vehicle perfectly. If you’re looking for a dependable battery cable that combines quality and value, this is a great choice based on my experience.
I hope this guide helps you make a confident decision when buying the AC Delco 41 109!
Author Profile

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I’m Rafael Michael, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.
In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.
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