SEA-DOO 421000655 Rotax Engine Seadoo 1503 112

( Manufacturer Part Number: 421000655 ), ( Part Type: Engine )

Review SEA DOO Seadoo Rotax Engine 112 Hours fits 2012

Introducing the Sea-Doo Rotax 1503 engine, model number 421000655, which was first introduced in the 2012 Sea-Doo watercraft models. This engine is a part of the Rotax 1500 series, known for its power, reliability, and efficiency.

The Rotax 1503 engine is a 4-stroke, supercharged and intercooled, liquid-cooled powerplant. It boasts a displacement of 1494cc and produces an impressive 150 horsepower at 6000 rpm. This power output ensures exhilarating performance for watercraft enthusiasts, delivering quick acceleration and impressive top speeds.

One of the key features of this engine is its supercharging system. The rotor-style supercharger is driven by a belt connected to the crankshaft, ensuring a consistent boost in power across the entire RPM range. The intercooling system is integrated into the supercharger design, which helps maintain optimal engine temperatures and maximizes power output.

The Rotax 1503 engine is also known for its advanced electronic fuel injection system, which delivers precise fuel delivery to the engine for optimal performance and efficiency. This system, combined with the engine's closed-loop cooling system, ensures that the watercraft maintains the best possible fuel economy and minimal emissions.

Additionally, the Rotax 1503 engine features a robust and durable design, with a high-performance piston design, forged crankshaft, and high-strength connecting rods. This engine is built to withstand the rigors of watercraft use, providing reliable performance season after season.

In summary, the Sea-Doo Rotax 1503 engine, model number 421000655, is a high-performance, supercharged and intercooled, 4-stroke engine that was first introduced in the 2012 Sea-Doo watercraft models. It produces 150 horsepower, features advanced electronic fuel injection and closed-loop cooling systems, and is built to be durable and reliable for watercraft enthusiasts.

Buying the Sea-Doo Rotax 1503 engine 112, part number 421000655 from the year 2012, comes with several pros and cons that might help you make an informed decision.

1. Reliability: The Rotax 1503 engine is known for its durability and reliability. It has a proven track record in the watercraft industry and is a popular choice among Sea-Doo owners.

2. Power: With a displacement of 1,494 cc, this engine delivers impressive power, making your watercraft faster and more agile.

3. Fuel Efficiency: The Rotax 1503 engine is relatively fuel-efficient, which can help save you money over time.

1. Cost: Replacing an entire engine can be quite expensive, especially for high-performance models like the Rotax 1503.

2. Complexity: Engines are complex machines, and replacing one can be a complicated process that requires specialized knowledge and tools.

3. Availability: Depending on your location and the availability of Sea-Doo dealers or aftermarket parts suppliers, it might be challenging to find a replacement engine quickly.

The decision to buy a Sea-Doo Rotax 1503 engine 112, part number 421000655, depends on various factors, including your budget, the condition of your current engine, and how urgently you need a replacement. If you're looking for a reliable and powerful engine that can enhance your watercraft's performance, the Rotax 1503 might be an excellent investment. However, keep in mind that the cost and complexity of the replacement process should also be considered.

Before making a decision, it's essential to weigh the pros and cons carefully and consider your specific situation. If the cost and complexity of a replacement engine are a concern, you might want to explore other options, such as rebuilding your current engine or purchasing a used engine from a trusted source. Alternatively, you could consider selling your current watercraft and investing in a newer model with a more up-to-date engine. Ultimately, the best choice depends on your budget, personal preferences, and the condition of your current watercraft.

Details:

However, experience tells us that occasionally life brings surprises and theory not exactly matches practice. Therefore, we kindly ask you to do your research as well ensure that item is compatible with a jet ski you're working on.

part #: 421000655 prices

• $158.57-$800.00

specifications perwatercraft:

• for makes: Sea-doo
• for years: 2012
• mpn: 421000655
• part type: Engine

payments perwatercraft:

• credit card: Mastercard
• wallet: Apple-pay
• other

offer perwatercraft:

• sold: 0
• availability: In Stock
• quantity: 1
• started: October 8, 2025
• best offers: True
• options: Ship-to-home

general perwatercraft:

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

seller perwatercraft:

• city: Katy, Texas
• # reviews: 190
• rating: 100.0%

shipping perwatercraft:

• cost: $141.44
• carrier: FedEx
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• transit: 2-7 Days
• type: Calculated

returns perwatercraft:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

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