21050-3707 KAWASAKI Engine Motor Flywheel Rotor Sx 550

Review KAWASAKI Oem Engine Motor Flywheel Rotor for SX 550 1990–1995

The Kawasaki 21050-3707 is a genuine OEM (Original Equipment Manufacturer) motor flywheel rotor specifically designed for the Kawasaki 550 SX motorbikes manufactured between 1990 and 1995. This crucial engine component plays a vital role in the ignition system, converting the reciprocating motion of the engine crankshaft into the rotational motion necessary for the crankshaft-mounted ignition system to generate the spark needed for combustion.

Crafted from high-quality materials, the Kawasaki 21050-3707 flywheel rotor boasts exceptional durability, reliability, and performance. Its robust construction ensures it can withstand the rigors of high-performance motorcycle use, even under the most demanding conditions. The flywheel rotor's smooth surface finish contributes to optimal engine balance, resulting in reduced vibrations and a more comfortable riding experience.

Measuring approximately 12 inches (304.8 mm) in diameter and 0.5 inches (12.7 mm) thick, the Kawasaki 21050-3707 flywheel rotor is meticulously engineered to fit securely into the engine crankshaft. Its precision machining guarantees a perfect fit and seamless integration with the engine.

This flywheel rotor is an essential replacement part for motorcycles that have worn-out or damaged original components. Installing a new OEM flywheel rotor ensures the continued optimal performance and reliability of the engine. Additionally, using a genuine Kawasaki part like the 21050-3707 guarantees a proper fit and reliable operation, as opposed to aftermarket alternatives which may not provide the same level of quality and performance.

In summary, the Kawasaki 21050-3707 motor flywheel rotor is a crucial engine component for 1990-1995 Kawasaki 550 SX motorbikes. Its high-quality construction, exceptional durability, and precise engineering ensure optimal engine performance, reliability, and a comfortable riding experience. As a genuine OEM part, it provides a perfect fit and seamless integration with the engine, making it the go-to choice for any Kawasaki 550 SX owner seeking to maintain or restore their motorcycle's performance.

Pros and Cons of Buying a Kawasaki 1990-1995 550 SX Engine Motor Flywheel Rotor (21007-3707)

a. Availability: Aftermarket parts like the Kawasaki 21007-3707 flywheel rotor are widely available from various online and offline stores, ensuring ease of purchase.

b. Cost-effective: Buying an aftermarket flywheel rotor can be more budget-friendly compared to purchasing a new OEM part from the dealership.

c. Performance: A high-quality aftermarket flywheel rotor can offer improved performance, such as increased horsepower and torque, making it an attractive option for enthusiasts.

a. Quality concerns: Aftermarket parts may not always meet the same level of quality as original equipment manufacturer (OEM) parts, which could lead to potential issues down the line.

b. Compatibility: Ensure that the aftermarket flywheel rotor is compatible with your specific engine model and year. Installing the wrong part could lead to various engine issues.

c. Installation: Installing an aftermarket flywheel rotor may require some mechanical skills, and improper installation could cause engine damage.

The decision to buy a Kawasaki 1990-1995 550 SX Engine Motor Flywheel Rotor (21007-3707) from an aftermarket supplier involves weighing the pros and cons. While aftermarket parts can offer cost savings and potential performance improvements, they may come with quality concerns, compatibility issues, and the need for proper installation. Ultimately, it's crucial to do thorough research, including reading reviews and ensuring compatibility, before making a purchase.

If you're confident in your mechanical skills and have verified the compatibility of the aftermarket flywheel rotor with your engine, purchasing it could be a cost-effective solution. However, if you prefer the peace of mind that comes with a genuine OEM part or if you're not comfortable with the installation process, consider purchasing the part from a Kawasaki dealership. Always prioritize safety and performance when making modifications to your vehicle.

Details:

Kawasaki 400 440 550 Sx oem flywheel rotor. In great working condition. Magnets nice tight. Fits: 1990 -1995 550 Sx, quality used parts.

Light pitting on front.

specifications jetskiignitions:

• for models: Sx, 550
• for years: 1990–1995
• brand: Kawasaki
• mpn: 21050-3707
• part type: Rotor Engine Motor Flywheel
• country of origin: Japan

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• time: 30 days
• policy: returns accepted

offer jetskiignitions:

• started: april 5, 2026
• options: ship-to-home
• in stock #: 1
• sold #: 11
• availability: in stock
• price: $109.00
• item condition: Used

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• category: Watercraft Parts > Ignition Starting Systems