Sierra International 180847 Exhaust Cover Gasket Review

Let’s Dive into Sierra International 180847 Exhaust Cover Gasket

The Sierra International 180847 Exhaust Cover Gasket might not be the sexiest piece of gear I’ve ever reviewed, but trust me, when you’re miles offshore and your Yamaha outboard is sputtering, this little gasket can be the difference between a successful fishing trip and a very expensive tow back to shore. This gasket, designed for Yamaha outboard applications, replaces part numbers 688-41112-00-00, 688-41112-01-00, and 688-41112-A0-00. It’s a small part, but its reliability is paramount.

I’ve been wrestling with outboards for over a decade, from small two-strokes on skiffs to larger engines on offshore boats. A recurring issue I’ve encountered, especially with older engines, is exhaust leaks. These leaks rob the engine of power, cause corrosion, and can even lead to carbon monoxide poisoning – a serious hazard on enclosed boats.

My first encounter with the Sierra International brand was years ago when replacing a water pump impeller. I was impressed with the quality and decided to keep them in mind for future needs. Upon receiving the Sierra International 180847 Exhaust Cover Gasket, my initial impression was positive. The material felt robust, and the dimensions appeared precise.

I considered using a generic gasket from an auto parts store, or even attempting to fabricate one myself. However, I’ve learned from experience that using the correct, manufacturer-specified parts is crucial for outboard reliability. After all, this engine powers my livelihood and keeps me safe. Picking the Sierra International 180847 Exhaust Cover Gasket just felt like a better choice for peace of mind.

Honestly, I wasn’t “excited” to review a gasket. I was, however, relieved to have a potential solution for a nagging problem that could impact my fishing season. If this gasket does what Sierra International claims, it will be a small price to pay for avoiding bigger headaches down the road.


Real-World Testing: Putting Sierra International 180847 Exhaust Cover Gasket to the Test

First Use Experience

I installed the Sierra International 180847 Exhaust Cover Gasket on my Yamaha 150HP outboard. The repair was done at my dock, which provided relatively calm conditions but a challenging environment to work in (awkward angles and limited space). The area was humid, being right on the water.

The installation was straightforward, requiring basic tools and about an hour of my time. The old gasket was brittle and cracked, confirming my suspicions of an exhaust leak. Immediately after replacing the gasket, I noticed a significant reduction in exhaust noise and a smoother engine idle.

No issues presented themselves during the initial use. The engine ran noticeably smoother and the exhaust smell wasn’t as potent, even at low RPMs. I didn’t experience any surprises, which, in the world of boat repairs, is a victory in itself!

Extended Use & Reliability

After several weeks of use, including multiple offshore fishing trips, the Sierra International 180847 Exhaust Cover Gasket continues to perform flawlessly. The engine maintains consistent power and fuel efficiency. I’ve also noticed a reduction in corrosion around the exhaust manifold, likely due to the elimination of the exhaust leak.

There are no signs of wear and tear on the gasket. I check around it after each trip, and it still looks as good as new. Maintenance has been minimal; I simply wipe down the engine after each use and inspect the gasket for any signs of damage.

Previously, I used a cheaper aftermarket gasket that failed within a few months. So far, the Sierra International 180847 Exhaust Cover Gasket is significantly outperforming my past experiences. Its durability and reliability have exceeded my expectations.

Breaking Down the Features of Sierra International 180847 Exhaust Cover Gasket

Specifications

The Sierra International 180847 Exhaust Cover Gasket is specifically designed for Yamaha outboard engines. It is interchangeable with Yamaha Outboard part numbers 688-41112-00-00, 688-41112-01-00, and 688-41112-A0-00. The gasket is made from a durable, heat-resistant material.

This specific gasket is designed to provide a tight seal between the exhaust cover and the engine block. This prevents exhaust leaks, which can reduce engine performance and cause corrosion. The heat-resistant material ensures that the gasket can withstand the high temperatures of the exhaust system.

Performance & Functionality

The Sierra International 180847 Exhaust Cover Gasket excels at its primary function: sealing the exhaust cover. It effectively prevents exhaust leaks, resulting in improved engine performance, fuel efficiency, and reduced corrosion. It provides a tight, reliable seal that holds up under demanding conditions.

The gasket has exceeded my expectations. The engine runs smoother and the exhaust smell is gone. The installation was simple, and the results were immediate.

Design & Ergonomics

The Sierra International 180847 Exhaust Cover Gasket is a simple, yet effective design. The material feels robust and the dimensions are precise, ensuring a proper fit. Its simplicity contributes to its reliability.

The gasket is user-friendly; its design requires very little technical expertise to install. There is virtually no learning curve, and the installation can be done with basic tools.

Durability & Maintenance

The Sierra International 180847 Exhaust Cover Gasket is made from a durable material that should last for several years. Its heat-resistant properties prevent it from cracking or deteriorating under extreme temperatures. With proper installation and occasional inspection, this gasket should provide long-lasting performance.

Maintenance is minimal. Occasional visual inspection should be sufficient to ensure its continued effectiveness. Its simple design means that there is very little that can go wrong.

Accessories and Customization Options

The Sierra International 180847 Exhaust Cover Gasket itself does not have any accessories or customization options. It’s a standalone replacement part. However, it is compatible with a variety of Yamaha outboard engines.

While there are no specific accessories for the gasket, its performance can be enhanced by ensuring that all other exhaust system components are in good working order. Proper maintenance of the exhaust manifold and related hardware will contribute to the gasket’s longevity and effectiveness.

Pros and Cons of Sierra International 180847 Exhaust Cover Gasket

Pros

  • Direct fit replacement: The Sierra International 180847 Exhaust Cover Gasket is designed to directly replace the Yamaha OEM part, ensuring a perfect fit and easy installation.
  • Improved Engine Performance: By effectively sealing the exhaust cover, this gasket helps maintain optimal engine performance and fuel efficiency.
  • Reduces Corrosion: Preventing exhaust leaks minimizes the risk of corrosion on surrounding engine components.
  • Durable Construction: Made from heat-resistant materials, this gasket is built to withstand the harsh conditions of an outboard engine.
  • Affordable Solution: At $13.48, the Sierra International 180847 Exhaust Cover Gasket is an affordable solution to a potentially costly problem.

Cons

  • Limited Application: This gasket is specifically designed for Yamaha outboards and may not be compatible with other engine brands.
  • Requires Basic Mechanical Skills: While the installation is straightforward, it requires some basic mechanical skills and tools.


Who Should Buy Sierra International 180847 Exhaust Cover Gasket?

The Sierra International 180847 Exhaust Cover Gasket is perfect for boat owners who own Yamaha outboards and are experiencing exhaust leaks. It’s also a great preventative maintenance item for anyone servicing their own engine. Those comfortable with basic mechanical repairs will find this gasket easy to install.

Those who should skip this product are individuals who do not own a Yamaha outboard or who are not comfortable performing basic engine repairs. Also, it may be best to let a professional mechanic handle the job if you suspect more significant exhaust system issues.

The most important must-have is a good set of tools. A clean workspace will make the repair much easier. Having a repair manual for your specific Yamaha outboard model can also be beneficial.

Conclusion on Sierra International 180847 Exhaust Cover Gasket

The Sierra International 180847 Exhaust Cover Gasket is a simple, yet essential component for maintaining the health and performance of your Yamaha outboard. Its durable construction, direct-fit design, and affordable price make it a worthwhile investment for any boat owner. Preventing exhaust leaks is important to maintaining optimal engine performance.

The price of $13.48 is absolutely justified. Replacing a failed gasket is significantly cheaper than repairing corrosion damage or replacing an engine component damaged by exhaust leaks. Plus, the Sierra International 180847 Exhaust Cover Gasket exceeded my performance expectations.

I would absolutely recommend the Sierra International 180847 Exhaust Cover Gasket to any boat owner who wants to protect their investment and enjoy worry-free boating. Don’t wait until your engine starts sputtering or corroding – replace your exhaust cover gasket with the Sierra International 180847 Exhaust Cover Gasket today. You’ll thank yourself later.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top