fits model: Efi, Mariner. make: Mercury. year: 2000–2005.

( Manufacturer Part Number: 804193 ), ( UPC: 745061273061 )
The 4-stroke 804193 Diaphragm Mercury Mariner EFI Outboard is a powerful and efficient marine engine designed for a variety of watercraft applications. This outboard motor features a 7.45 HP (5.5 kW) rating, making it an excellent choice for smaller boats, dinghies, and inflatables.
The Diaphragm Mercury Mariner EFI Outboard is equipped with a 4-stroke, direct-fuel-injection (EFI) engine. This design allows for precise fuel delivery, resulting in improved combustion, reduced emissions, and increased fuel efficiency compared to carbureted engines. The EFI system also eliminates the need for choke and carburetor adjustments, making starting and operation of the motor easier and more reliable.
The 4-stroke engine design of the Diaphragm Mercury Mariner EFI Outboard provides smooth and quiet operation, as well as reduced maintenance requirements compared to 2-stroke engines. The outboard features a compact and lightweight design, with a weight of only 68 lbs (31 kg), making it easy to handle and transport.
The Diaphragm Mercury Mariner EFI Outboard is also equipped with a number of advanced features to enhance its performance and safety. These include a digital throttle and shift (DTS) system, which provides smooth and precise control of the engine's speed and direction. The outboard also features a multi-function instrument display, which provides real-time information on engine RPM, fuel level, and other important operating data.
The Diaphragm Mercury Mariner EFI Outboard is designed to meet the highest standards of durability and reliability. It is built with corrosion-resistant materials and features a tough paint finish to protect against the harsh marine environment. The outboard is also backed by Mercury Marine's industry-leading warranty, providing peace of mind for boat owners.
Overall, the 4-stroke 804193 Diaphragm Mercury Mariner EFI Outboard is a high-performance and reliable engine that is well-suited for a variety of marine applications. Its advanced EFI system, smooth and quiet operation, and compact design make it a great choice for boat owners looking for a powerful and efficient outboard engine.
Pros of buying a 4-stroke 804193 diaphragm Mercury Mariner EFI outboard engine:1. Fuel efficiency: The 4-stroke engine is known for its high fuel efficiency compared to two-stroke engines, which can save you money in the long run.
2. Reliability: Four-stroke engines are generally more reliable and durable than two-stroke engines due to their simpler design and fewer moving parts.
3. Quiet operation: Four-stroke engines are typically quieter than two-stroke engines, which can be a significant advantage when operating in areas with noise restrictions.
4. Easy maintenance: The 4-stroke engine is easier to maintain than a two-stroke engine, as it does not require frequent oil changes.
5. EFI (Electronic Fuel Injection) technology: The EFI system ensures precise fuel delivery, which can improve engine performance and reduce emissions.
Cons of buying a 4-stroke 804193 diaphragm Mercury Mariner EFI outboard engine:1. Higher initial cost: Four-stroke engines tend to be more expensive than two-stroke engines, which can be a significant barrier to entry for some buyers.
2. Weight: Four-stroke engines are generally heavier than two-stroke engines, which can affect the boat's performance and handling.
3. Limited power output: Compared to some two-stroke engines, four-stroke engines may not offer the same level of power output, which could be a concern for boaters who require high horsepower for certain activities.
Conclusion:The 4-stroke 804193 diaphragm Mercury Mariner EFI outboard engine offers several advantages, including fuel efficiency, reliability, quiet operation, easy maintenance, and EFI technology. However, it also has some drawbacks, such as a higher initial cost, weight, and potentially lower power output compared to some two-stroke engines. Ultimately, the decision to purchase this engine depends on your specific needs, budget, and preferences. If you value fuel efficiency, reliability, and quiet operation, and are willing to pay a premium for these features, then this engine could be a good fit for you.
Recommendation:If you are in the market for a new outboard engine and are considering the 4-stroke 804193 diaphragm Mercury Mariner EFI, I would recommend doing your research and considering your specific needs and budget. Test drive the engine if possible to get a feel for its performance and see if it meets your expectations. Additionally, consider getting a professional opinion from a marine technician or boat dealer to ensure that this engine is the best fit for your boat and your boating activities. Overall, this engine is a solid choice for those who value fuel efficiency, reliability, and quiet operation and are willing to pay a premium for these features.
It fits many Mercury and Mariner outboards from with 75 90 hp engines.
This diaphram is in excellent condition. If you are not sure this is the right model for you, please with your serial number. The Mercury part number for diaphram is804193.
216d Marie.