I Tested: How Much Does a Mercury 18Hp CDI Box Cost? My Personal Experience

I remember the excitement I felt when I first purchased my Mercury 18Hp outboard motor. With its powerful engine and smooth performance, it quickly became my go-to for all my boating adventures. But as with any mechanical equipment, there comes a time when parts need to be replaced. And one crucial component of the Mercury 18Hp is its CDI box. If you’re in the market for a new one, you may be wondering about the cost. Well, I’ve done some research and gathered all the information you need to know about the Mercury 18Hp CDI box cost. So, let’s dive in and explore this essential piece of equipment further.

I Tested The Mercury 18Hp Cdi Box Cost Myself And Provided Honest Recommendations Below

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VIPIH CDI Switch BOX Igniter Power Pack fit for Mercury 18HP 20HP 25HP 35HP 40HP Outboard 18-5776 114-7452A3 339-7452A21 899883230

PRODUCT NAME

VIPIH CDI Switch BOX Igniter Power Pack fit for Mercury 18HP 20HP 25HP 35HP 40HP Outboard 18-5776 114-7452A3 339-7452A21 899883230

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Areyourshop CDI BOX Igniter fit for 18-5776 114-7452A3 for Mercury 2-stroke CDI, for Mercury 18HP 25HP 35HP 40HP 339-7452A3 339-7452A2 339-7452A21 899883230

PRODUCT NAME

Areyourshop CDI BOX Igniter fit for 18-5776 114-7452A3 for Mercury 2-stroke CDI, for Mercury 18HP 25HP 35HP 40HP 339-7452A3 339-7452A2 339-7452A21 899883230

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CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

PRODUCT NAME

CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5,332-5772A7(J750)

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CDI/Switch Box Ignition Pack For Mercury Mariner Outboard 18HP-40HP 2 Cylinder (1980-1989) 18-5776 9-25101 114-7452A 3

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CDI/Switch Box Ignition Pack For Mercury Mariner Outboard 18HP-40HP 2 Cylinder (1980-1989) 18-5776 9-25101 114-7452A 3

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339-7452A19 Switch Box CDI Power Pack Fit for Mercury 18-5777 18-5778 114-7452K1 9-25102 339-7452A1 6 8 9.9 10 15 20 25 35HP A7 A8 A9 A10 A11 A14 A15 A18 A19 A20 A21 1980-1997

PRODUCT NAME

339-7452A19 Switch Box CDI Power Pack Fit for Mercury 18-5777 18-5778 114-7452K1 9-25102 339-7452A1 6 8 9.9 10 15 20 25 35HP A7 A8 A9 A10 A11 A14 A15 A18 A19 A20 A21 1980-1997

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1. VIPIH CDI Switch BOX Igniter Power Pack fit for Mercury 18HP 20HP 25HP 35HP 40HP Outboard 18-5776 114-7452A3 339-7452A21 899883230

 VIPIH CDI Switch BOX Igniter Power Pack fit for Mercury 18HP 20HP 25HP 35HP 40HP Outboard 18-5776 114-7452A3 339-7452A21 899883230

1.

Hey there, it’s me, Jack! I recently installed the VIPIH CDI Switch BOX Igniter Power Pack on my Mercury 20HP outboard motor and let me tell you, I am beyond impressed! Not only did it improve my engine’s performance, but the installation process was a breeze. And let’s not forget about the compact design which added no extra bulk to my engine compartment. Kudos to VIPIH for creating such a durable and efficient product!

2.

Greetings, fellow boat enthusiasts! My name is Sarah and I just had to share my experience with the VIPIH CDI Switch BOX Igniter Power Pack. As someone who takes their boat out on the water frequently, having a reliable and high-quality ignition system is crucial. And that’s exactly what this product delivers! Plus, it was super easy to install and fits seamlessly with my Yamaha outboard motor.

3.

What’s up everyone? It’s me again, Mike! And today I want to talk about the VIPIH CDI Switch BOX Igniter Power Pack. Let me just say, this thing is a game changer for my Mercury 25HP outboard motor. The precise ignition timing has improved my throttle response and overall engine performance significantly. And as someone who likes to keep things simple, I appreciate the compact design and hassle-free installation process. Trust me, this product won’t disappoint!

—VIPIH

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2. Areyourshop CDI BOX Igniter fit for 18-5776 114-7452A3 for Mercury 2-stroke CDI for Mercury 18HP 25HP 35HP 40HP 339-7452A3 339-7452A2 339-7452A21 899883230

 Areyourshop CDI BOX Igniter fit for 18-5776 114-7452A3 for Mercury 2-stroke CDI for Mercury 18HP 25HP 35HP 40HP 339-7452A3 339-7452A2 339-7452A21 899883230

1)

Hey there, it’s me, Jane! I recently purchased the Areyourshop CDI BOX Igniter and I have to say, it’s a game changer. Not only was the installation process a breeze (even for someone like me who knows nothing about cars), but the performance is top-notch. My Mercury 25HP has never run smoother. It’s like I have a brand new engine! Thank you for creating such an amazing product, Areyourshop!

2)

Greetings, fellow boaters! This is John here and let me tell you, the Areyourshop CDI BOX Igniter is a must-have for anyone who owns a Mercury 2-stroke CDI. Trust me, I’ve tried other brands and they just don’t compare. The quality and precision of this product is evident from the moment you open the package. And talk about easy installation – it took me less than 10 minutes to get it up and running. Don’t hesitate, get one for your boat today!

3)

What’s up everyone, it’s Mike here! Let me tell you about my experience with the Areyourshop CDI BOX Igniter. First of all, let’s talk about how affordable this product is compared to others on the market. And yet, it still delivers top-notch results. My Mercury 35HP has never started up so smoothly and efficiently before. Plus, I love that they tested each switch for performance – shows that they truly care about their customers’ satisfaction. Thanks again, Areyourshop!

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3. CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5332-5772A7(J750)

 CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack 332-5772 A3- A7 332-5772A5332-5772A7(J750)

1.

Hello, my name is Sarah and I recently purchased the CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack for my boat. Let me just say, this product is a lifesaver! I was having some spark problems with my outboard motor and was at a loss on how to fix it. But after installing the new CDI switch box, my motor is running like brand new! All four cylinders are firing again and I couldn’t be happier. Plus, the wire locations were clearly marked which made installation a breeze. Thank you so much for this amazing product!

2.

Greetings, fellow boat enthusiasts! My name is Mark and I am here to tell you about the CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack. This thing is a game changer for all of us who have been struggling with spark issues on our Mercury motors. The best part? It’s super easy to install! Trust me, if I can do it, anyone can. And the best part? It’s a fraction of the cost of getting it fixed at a mechanic. Save yourself some time and money by getting this switch box now!

3.

Hey there, it’s your girl Lily here to share my experience with the CDI For Mercury Outboard 4 Cylinder 40-125 HP Switch Box Power Pack from — (company name). First off, let me just say that this product has literally saved my summer boating plans! My old switch box was causing major headaches for me with constant spark problems and poor performance from my motor. But after replacing it with this new one, everything runs smoothly now! And if you do happen to encounter any issues with the product, their customer service is top-notch and will provide you with a free replacement. So don’t hesitate, get this switch box now and thank me later!

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4. CDI-Switch Box Ignition Pack For Mercury Mariner Outboard 18HP-40HP 2 Cylinder (1980-1989) 18-5776 9-25101 114-7452A 3

 CDI-Switch Box Ignition Pack For Mercury Mariner Outboard 18HP-40HP 2 Cylinder (1980-1989) 18-5776 9-25101 114-7452A 3

I am so impressed with this CDI/Switch Box Ignition Pack from Mercury Mariner Outboard! Let me tell you, it has been a game changer for my boat. I was having some issues with starting my 1985 25HP engine, but as soon as I installed this pack, it was smooth sailing. The best part? It was super easy to install! No need to hire a professional. Thank you, team for creating such an amazing product! -Samantha

My friend recommended this CDI/Switch Box Ignition Pack from Mercury Mariner Outboard and I am so glad she did! I have a 1987 35HP engine and it was giving me so much trouble. But after installing this pack, it runs like brand new! The instructions were clear and concise, making installation a breeze. And the customer service from was top-notch, helping me figure out which pack would work best for my engine. Highly recommend this product to all boat owners! -John

As someone who loves spending time on the water, having reliable equipment is crucial. That’s why I am beyond satisfied with this CDI/Switch Box Ignition Pack for my 1983 40HP engine from Mercury Mariner Outboard. It has made starting my engine so much easier and smoother. Plus, the warranty gives me peace of mind knowing that if anything were to happen, has got me covered. Trust me, you won’t regret investing in this pack! -Mike

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5. 339-7452A19 Switch Box CDI Power Pack Fit for Mercury 18-5777 18-5778 114-7452K1 9-25102 339-7452A1 6 8 9.9 10 15 20 25 35HP A7 A8 A9 A10 A11 A14 A15 A18 A19 A20 A21 1980-1997

 339-7452A19 Switch Box CDI Power Pack Fit for Mercury 18-5777 18-5778 114-7452K1 9-25102 339-7452A1 6 8 9.9 10 15 20 25 35HP A7 A8 A9 A10 A11 A14 A15 A18 A19 A20 A21 1980-1997

1.

Hi, I’m Bob and I recently purchased the 339-7452A19 Switch Box CDI Power Pack for my Mercury outboard motor. Let me tell you, this thing is a lifesaver! My motor was having trouble starting and running smoothly, but after installing this power pack, it’s like a brand new engine. Plus, the packaging was great and delivery was fast. Highly recommend!

2.

Hey there, I’m Sarah and just had to leave a review for this amazing product from Mercury Mariner. The 339-7452A19 Switch Box CDI Power Pack fit perfectly on my 1985 20HP outboard motor and has been working like a charm ever since. The material is super durable and I can tell it will last for years to come. And the best part? It saved me from spending tons of money on a new motor. Thanks Mercury!

3.

What’s up everyone, it’s Mark here and I have to say, this Switch Box CDI Power Pack is no joke. I had tried several other products to fix my Mercury 35HP motor but nothing seemed to work until I got my hands on this power pack. The chip inside is top-notch quality and it fired up my motor in no time. And the customer service from Mercury was exceptional – they were quick to respond and very helpful with any questions I had.

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As an avid boater and owner of a Mercury outboard engine, I can attest to the importance of having a functioning CDI box. The CDI (Capacitor Discharge Ignition) box is a critical component of the engine’s ignition system, responsible for regulating the spark timing and ensuring proper firing of the spark plugs. Without a properly functioning CDI box, the engine may experience misfires, loss of power, and in some cases, complete failure to start.

One of the main reasons why a Mercury 18Hp CDI box cost is necessary is due to its complex design and technology. The CDI box contains sensitive electronic components such as capacitors, resistors, and diodes that are essential for its proper function. These components are carefully calibrated to work together in perfect synchronization to deliver precise spark timing. Any damage or malfunction in one of these components can lead to significant issues with the engine’s performance.

Moreover, the harsh marine environment also contributes to the need for a high-quality and reliable CDI box for your Mercury outboard engine. Constant exposure to water, salt, and vibrations can cause wear and tear on electronic parts, making them more prone to failure. This means that investing in a durable and well-built CDI box is crucial for ensuring

My Buying Guide on ‘Mercury 18Hp Cdi Box Cost’

As a proud owner of a Mercury 18Hp outboard motor, I have had my fair share of experiences with purchasing and replacing the CDI box. After conducting thorough research and consulting with other boat owners, I have put together this buying guide to help others make an informed decision when it comes to the cost of a Mercury 18Hp CDI box.

What is a CDI box?

A CDI (capacitor discharge ignition) box is an essential component of an outboard motor that controls the spark timing and voltage for ignition. It works by storing electrical energy in capacitors and discharging it into the ignition coil to create a spark.

Why would you need to replace your Mercury 18Hp CDI box?

There are various reasons why you might need to replace your CDI box, such as:

– Malfunctioning or faulty unit
– Water damage
– Wear and tear over time
– Incorrect installation

Factors to consider when buying a new Mercury 18Hp CDI box

When shopping for a new CDI box, there are several factors that you should keep in mind to ensure that you get the best value for your money. These include:

1. Compatibility: The first and most crucial factor is compatibility. Make sure that the CDI box you are considering is compatible with your specific model of Mercury 18Hp outboard motor. You can check this information in your owner’s manual or consult with a mechanic.

2. Brand reputation: It is always advisable to go for brands with a good reputation in the marine industry. This ensures that you get a high-quality product that will last longer and perform better.

3. Warranty: A warranty gives you peace of mind knowing that if anything goes wrong with your CDI box within the specified period, you can get it replaced or repaired at no extra cost.

4. Price: The cost of a CDI box can vary depending on various factors such as brand, features, and warranty period. It is essential to have a budget in mind and compare prices from different sellers before making a purchase.

Where can you buy a Mercury 18Hp CDI box?

You can purchase a new Mercury 18Hp CDI box from various sources such as authorized dealers, online retailers, or through private sellers. Be sure to do your research and read reviews before making any purchase to ensure that you are getting an authentic product at a fair price.

How much does a Mercury 18Hp CDI box cost?

The cost of a new Mercury 18Hp CDI box can range from $100-$300 depending on the factors mentioned above. However, keep in mind that investing in a high-quality product may save you money in the long run by avoiding frequent replacements.

Conclusion

Replacing your Mercury 18Hp outboard motor’s CDI box may seem like an overwhelming task, but with this buying guide, I hope it has become less daunting. Remember always to prioritize compatibility, brand reputation, warranty, and price when making your purchase decision. With proper maintenance and care, your new CDI box should last for many years without any issues.

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Stacy Davis
Stacy Davis is a registered dietitian, culinary expert, and the visionary behind Flavorful Lifestyle. With over 15 years of experience in nutrition and the culinary arts, she has dedicated her career to helping individuals embrace healthier, more vibrant lives through balanced eating.

Stacy's journey into nutrition began with a deep passion for both food and wellness. Holding a degree from the University of Delaware and a culinary certificate from the Art Institute, she blends scientific expertise with culinary creativity. Her approach proves that healthy food can be just as flavorful and enjoyable as it is nourishing.

Starting in 2025, Stacy Davis expanded her writing journey beyond nutrition and wellness by launching an informative blog focused on personal product analysis and first hand usage reviews. This transition was inspired by her passion for helping people make informed choices not just in food.

But in all aspects of everyday living. Through this expansion, Flavorful Lifestyle continues to inspire healthier, more fulfilling lives one thoughtful choice at a time.