fits make: Mercury. year: 2005.

( Manufacturer Part Number: 828340A16 ), ( Part Type: Block Unit ), ( Fitment: 2000 Optimax 135 / 150 Hp )
The 828340a16 2005 Mercury 2.5L Optimax outboard 135 block water unit is a powerful and reliable marine engine designed for high-performance boating. This outboard motor features a 2.5-liter, four-stroke, in-line, three-cylinder engine that delivers smooth and efficient power, with a displacement of 151 cubic inches.
The Optimax engine is known for its advanced technology and innovative design, including Mercury's proprietary Multi-Port Electronic Fuel Injection (EFI) system, which ensures precise fuel delivery for optimal engine performance and fuel efficiency. The engine also features a high-output alternator, which provides plenty of power for onboard electronics and accessories.
The 135-horsepower block water unit is equipped with a dual-propeller pump system, which provides excellent cooling performance and helps to maintain optimal engine temperatures, even in the toughest conditions. The unit also features a corrosion-resistant aluminum alloy engine block, which is built to withstand the harsh marine environment.
The outboard motor is equipped with Mercury's advanced SmartCraft digital control system, which allows for easy and precise engine tuning and monitoring. The system includes features such as electronic throttle and shift, digital fuel injection, and advanced diagnostics, which help to ensure optimal engine performance and reliability.
The 828340a16 2005 Mercury 2.5L Optimax outboard 135 block water unit is designed for use with a variety of boat types, including bass boats, bowriders, and center consoles. The unit is easy to install and maintain, with a quick-release tilt swivel mount and easy-to-access service points.
Overall, the 828340a16 2005 Mercury 2.5L Optimax outboard 135 block water unit is a high-performance and reliable marine engine that is built to deliver years of trouble-free operation. With its advanced technology, innovative design, and rugged construction, this outboard motor is the perfect choice for boaters who demand the best in performance and reliability.
Pros of buying a 2005 Mercury 2.5L Optimax outboard 135 block water unit:1. Reliability: Mercury is a well-known and reputable brand in the marine industry. The 2.5L Optimax engine is known for its durability and reliability.
2. Power: With a 135 horsepower rating, this outboard engine provides ample power for most recreational boating activities.
3. Fuel Efficiency: The 2.5L Optimax engine is designed to be fuel-efficient, which can help save you money over time.
4. Wide Availability of Parts: Mercury engines are widely available, so it should be easy to find replacement parts if needed.
Cons of buying a 2005 Mercury 2.5L Optimax outboard 135 block water unit:1. Age: The engine is 16 years old, which means it may have some wear and tear and may require more maintenance than a newer engine.
2. Higher Cost: Older engines may be more expensive than newer ones, and the cost of repairs or replacements can add up over time.
3. Limited Technology: The 2005 model may not have the latest technology features, such as digital displays or SmartCraft electronic controls, that newer models offer.
Conclusion:The 2005 Mercury 2.5L Optimax outboard 135 block water unit is a reliable and powerful engine that can provide years of service. However, its age may require more maintenance and repairs, and it may not have the latest technology features. If you are looking for a more affordable option or want the latest technology, you may want to consider a newer engine. However, if you are looking for a reliable and powerful engine with a proven track record, the 2005 Mercury 2.5L Optimax outboard 135 block water unit could be a good choice.
Recommendation:If you are interested in this engine, I would recommend having it inspected by a qualified marine mechanic to ensure that it is in good working condition. You should also consider the cost of maintenance and repairs, and weigh that against the benefits of a reliable and powerful engine. If you are comfortable with the potential costs and the engine's condition, the 2005 Mercury 2.5L Optimax outboard 135 block water unit could be a good choice for your boating needs.
Engine was running when disassembled. As is shown long block ready to crate and ship.