SEA-DOO 421000100 Engine Seadoo 787

( Manufacturer Part Number: 421000100 ), ( Part Type: Engine )

Review SEA DOO Seadoo 787 Engine fits XP 800 1995

Introducing the Sea-Doo XP 787 800 Engine, a powerful and efficient marine powerhouse from the renowned Sea-Doo brand, manufactured in 1995 with the model number 421000100. This engine is a testament to Sea-Doo's commitment to delivering high-performance and reliable watercraft engines.

The Sea-Doo XP 787 800 Engine boasts an impressive displacement of 800 cc, making it a formidable force on the water. Its four-stroke design ensures a cleaner and more fuel-efficient operation compared to its two-stroke counterparts. This engine also features a closed-loop cooling system, which circulates the engine coolant through a heat exchanger to maintain optimal operating temperatures.

The Sea-Doo XP 787 800 Engine is known for its robust and durable construction. Its cast-aluminum cylinder sleeves provide excellent heat dissipation and resistance to corrosion. The engine's crankshaft and connecting rods are made from high-strength steel, ensuring the engine can handle the rigors of water sports and marine use.

The engine's intake and exhaust systems are designed for optimal power and efficiency. It features a high-performance carburetor that delivers a precise fuel-air mixture to the engine for optimal combustion. The exhaust system is designed for low emissions, making it an environmentally friendly choice for water sports enthusiasts.

The Sea-Doo XP 787 800 Engine is also easy to maintain, with easily accessible service points and a user-friendly design. Its oil filter and air filter are located at the front of the engine, making them simple to access and change. The engine's electronic fuel injection system ensures easy starting and consistent performance.

In summary, the Sea-Doo XP 787 800 Engine is a high-performance and reliable marine powerhouse. With its impressive displacement, four-stroke design, robust construction, and easy maintenance, it is an excellent choice for water sports enthusiasts and marine applications. Whether you're cruising the open water or tearing up the waves, the Sea-Doo XP 787 800 Engine is up to the challenge.

Buying a 1995 Sea-Doo XP 787 800 Engine: Pros, Cons, and Conclusion

The Sea-Doo XP 787 800 engine, with model number 421000100, is a popular choice among watercraft enthusiasts due to its power and reliability. However, like any other engine, it has its advantages and disadvantages. In this article, we will discuss the pros and cons of buying this engine to help you make an informed decision.

1. Power: The Sea-Doo XP 787 800 engine delivers impressive power, making it suitable for water sports activities such as wakeboarding, water skiing, and jet skiing.

2. Durability: This engine is known for its durability and long-lasting performance. It can handle heavy use and rough water conditions.

3. Easy to find: Spare parts and repair services for this engine are readily available, making it easier to maintain and keep running.

4. Fuel Efficiency: The Sea-Doo XP 787 800 engine is relatively fuel-efficient, which can save you money in the long run.

1. Age: Being a 1995 model, this engine may require more maintenance and repairs compared to newer models.

2. Emissions: Older engines, including the Sea-Doo XP 787 800, may not meet the latest emissions standards, which could be a concern for some buyers.

3. Price: The cost of purchasing a used 1995 Sea-Doo XP 787 800 engine may be higher than a newer model, depending on the market conditions and availability.

The Sea-Doo XP 787 800 engine offers impressive power and durability, making it a popular choice among watercraft enthusiasts. However, its age and potential maintenance requirements are important factors to consider. If you are looking for a powerful engine for water sports activities and are not concerned about emissions, this engine could be a good option. However, if you prefer a newer model with the latest technology and emissions standards, you may want to explore other options. Ultimately, the decision to buy a used 1995 Sea-Doo XP 787 800 engine depends on your specific needs, budget, and preferences.

If you are in the market for a used watercraft engine and are considering the Sea-Doo XP 787 800, we recommend thoroughly inspecting the engine before making a purchase. Look for any signs of damage or wear, and consider having it serviced by a professional to ensure it is in good working condition. Additionally, be prepared for potential maintenance costs and consider the engine's age and emissions standards in your decision-making process.

Details:

Engine may still have some life left on the top end but I m SELLING AS IS FOR PARTS OR REBUILD Spark plugs not included. As shown in pics May have been used saltwater. Also Looks like it has some corrosion in the water ports 1 port on head is chipped. Seadoo 787 engine from a 1995 SEA-DOO XP.

Has 135 150 lbs of compression. The lower compression piston appears to have some scoring starting happen. Rotates freely.

part #: 421000100 prices

• $129.94-$978.99

specifications perwatercraft:

• for models: Xp, 800
• for makes: Sea-doo
• for years: 1995
• mpn: 421000100
• part type: Engine

general perwatercraft:

• condition: Used
• Parts Accessories > Personal Watercraft Parts > Other Parts

seller perwatercraft:

• city: Interlachen, Florida
• rating: 0.0%
• # reviews: 762

offer perwatercraft:

• availability: In Stock
• quantity: 1
• started: August 21, 2025
• options: Ship-to-home
• sold: 0

shipping perwatercraft:

• type: Calculated
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• transit: 5-12 Days
• cost: $120.04

returns perwatercraft:

• policy: No Returns

payments perwatercraft:

• other
• credit card: Diners-club
• wallet: Apple-pay

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