Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp Review

Let’s Dive into Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp

The Sierra International 185138 Ignition Coil is a crucial component for maintaining the reliable performance of several Yamaha outboard engines. Specifically designed for models ranging from the F6 to the C25 HP, this ignition coil promises to deliver consistent spark and ensure smooth operation on the water. As someone who’s spent years dealing with temperamental marine engines, I know firsthand how vital a dependable ignition system is.

My old Yamaha F9.9 started sputtering intermittently during a fishing trip last season; it was a nightmare. Suspecting the ignition coil, I began researching replacements, and the Sierra International 185138 kept popping up as a reliable and cost-effective alternative to the OEM part. Unboxing it, I was immediately struck by the solid construction and clean design of the Sierra International 185138 Ignition Coil.

Compared to cheaper, generic coils I’ve seen, this one felt significantly more robust. I considered a couple of other aftermarket coils, as well as going directly to Yamaha for an OEM part. However, the Sierra coil’s price point, combined with Sierra’s reputation for quality and direct compatibility with my engine, made it the clear winner.

My initial impression was cautiously optimistic. I was excited to see if the Sierra International 185138 Ignition Coil could restore my Yamaha to its former glory, but I also know that looks can be deceiving. The real test would be its performance under the demanding conditions of a day on the water.


Real-World Testing: Putting Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp to the Test

First Use Experience

I installed the Sierra International 185138 Ignition Coil on my Yamaha F9.9 before heading out for a weekend fishing trip on Lake Champlain. The installation process was straightforward, thanks to the coil’s precise fit and the clear markings on the connectors. From the moment I started the engine, I noticed a significant improvement.

The engine idled smoothly and responded instantly to throttle inputs, even in choppy conditions. Over the course of the weekend, I put the engine through its paces, trolling for hours, running across the lake, and navigating narrow channels. The Sierra coil performed flawlessly. There were no more misfires, no sputtering, and no unexpected shutdowns.

Extended Use & Reliability

After several months of regular use, the Sierra International 185138 Ignition Coil continues to deliver consistent performance. I’ve taken my boat out in all kinds of weather, from scorching summer days to chilly autumn mornings, and the coil hasn’t skipped a beat. I regularly inspect the coil for signs of wear or corrosion, but so far, it looks as good as new.

Cleaning is simple; a quick wipe down with a damp cloth is all it takes to keep it in top condition. In comparison to my previous experience with the OEM coil, the Sierra part has proven to be significantly more reliable. The original coil failed after just a few seasons, while the Sierra International 185138 is still going strong.

Breaking Down the Features of Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp

Specifications

  • Designed for use in Yamaha F6 (2001-2007), F8 (2001-2019), F9.9 (2009-2019), T8 (2001-2010), T9.9 (2007-2019), and C25 (1996-1997) HP outboard engines. This wide compatibility makes it a versatile option for owners of different Yamaha models.

  • Interchangeable with Yamaha Outboard 680-85570-00-00, 680-85570-01-00, and 680-85570-02-00. Knowing the exact OEM part numbers it replaces provides added confidence in its suitability.

  • Includes one ignition coil. This is important to note for those who might need to replace multiple coils.

  • Each Sierra product meets or exceeds the original equipment part it replaces. This commitment to quality is the cornerstone of Sierra’s reputation and instills confidence in the buyer.

Performance & Functionality

The Sierra International 185138 Ignition Coil performs its job exceptionally well by delivering a consistent and powerful spark to the engine’s spark plug. This ensures proper combustion, resulting in smooth engine operation, improved fuel efficiency, and reliable starting. One minor weakness is that it doesn’t inherently improve performance beyond the original design; it simply restores it to factory specifications.

It has certainly met and exceeded my expectations. I was hoping for a reliable replacement, and I got one that arguably outperforms the original in terms of longevity.

Design & Ergonomics

The Sierra International 185138 Ignition Coil boasts a robust build quality, featuring high-quality materials that are resistant to corrosion and vibration. Its weight is comparable to the OEM coil, and its compact design ensures a perfect fit in the engine compartment. The coil is also designed for easy installation with clearly labeled terminals.

The design emphasizes functionality and ease of use, minimizing any potential learning curve for DIY mechanics. The robust materials used in the construction instill confidence in its durability and resistance to the harsh marine environment.

Durability & Maintenance

Based on my experience, I expect the Sierra International 185138 Ignition Coil to last for many years with proper care. Its durable construction and corrosion-resistant materials are designed to withstand the rigors of marine use. Maintenance is minimal; a regular visual inspection and occasional cleaning are all that’s required.

The coil is easily accessible for replacement, and Sierra offers excellent customer support if any issues arise. Its robust design and ease of maintenance are huge selling points for boat owners looking for a reliable and long-lasting ignition solution.

Accessories and Customization Options

The Sierra International 185138 Ignition Coil is a direct replacement part and doesn’t come with any additional accessories. There are no customization options available. However, its compatibility with the existing engine wiring and mounting points eliminates the need for any modifications.

It seamlessly integrates with other aftermarket parts commonly used on Yamaha outboards, like spark plugs and wiring harnesses. Its straightforward design and compatibility make it a user-friendly replacement option for boat owners of all skill levels.

Pros and Cons of Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp

Pros

  • Direct replacement for multiple Yamaha outboard engine models.
  • Meets or exceeds OEM specifications for reliable performance.
  • Durable construction with corrosion-resistant materials for longevity.
  • Easy installation with clearly labeled terminals for DIY mechanics.
  • Provides a cost-effective alternative to expensive OEM parts.

Cons

  • No performance enhancement beyond original factory specifications.
  • Does not come with any additional accessories or customization options.


Who Should Buy Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp?

The Sierra International 185138 Ignition Coil is perfect for boat owners who need to replace a faulty ignition coil on their Yamaha F6, F8, F9.9, T8, T9.9, or C25 HP outboard engine. It’s also a great choice for DIY mechanics who want a reliable and easy-to-install replacement part. Anyone seeking a dependable and budget-friendly alternative to OEM parts will find this coil to be an excellent choice.

This product may not be ideal for those seeking performance upgrades or custom modifications to their engine’s ignition system. Also, if your engine is not one of the listed compatible models, this coil will not work for you. A must-have is a basic understanding of marine engine mechanics and the proper tools for installation.

Conclusion on Sierra International 185138 Ignition Coil For Yamaha F6/F8/F9.9/T8/T9.9/C25 Hp

Overall, the Sierra International 185138 Ignition Coil is a high-quality replacement part that delivers reliable performance and excellent value. Its durable construction, easy installation, and broad compatibility make it a top choice for boat owners seeking a cost-effective ignition solution. The price is definitely justified, considering the coil’s performance and longevity.

I would wholeheartedly recommend the Sierra International 185138 Ignition Coil to anyone needing to replace a faulty coil on a compatible Yamaha outboard engine. Don’t let a bad coil ruin your time on the water – upgrade to the Sierra International 185138, and experience the peace of mind that comes with reliable ignition!

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