WEBER 400700 Rotor Flywheel Williams Tender MPE-750

( Brand: Weber ), ( Manufacturer Part Number: 400700 ), ( Part Type: Rotor Flywheel ), ( Country Of Origin: Germany )

Review WEBER Rotor Assy Flywheel Williams Tender

The Weber MPE-750 Rotor Flywheel, part number 400700, is a high-performance accessory designed for Williams tender applications. This flywheel is an essential component of the engine's ignition system, responsible for providing a consistent and reliable power source to the ignition coils.

The Weber MPE-750 Rotor Flywheel is a high-capacity unit, capable of delivering more power and torque to the engine compared to standard flywheels. Its heavy-duty construction is designed to withstand the demands of high-performance applications, making it an ideal choice for Williams tenders that require extra power and responsiveness.

Measuring approximately 10 inches in diameter and 1 inch thick, this flywheel is machined from high-quality materials, including a heavy-duty aluminum alloy for the outer shell and a robust iron core for the rotor. This combination of materials ensures maximum durability and reliability, even under heavy use.

The flywheel's surface is precision-machined to ensure a perfect fit with the engine crankshaft and clutch system. Its smooth, flat surface also ensures efficient power transfer from the engine to the propeller, resulting in improved acceleration and top-end performance.

The Weber MPE-750 Rotor Flywheel is also designed to work seamlessly with the engine's ignition system. Its large size and high mass provide a consistent power source to the ignition coils, ensuring reliable spark plug firing and optimal combustion efficiency.

Installing the Weber MPE-750 Rotor Flywheel is a straightforward process, thanks to its precise machining and compatibility with standard clutch systems. However, it is recommended that the installation be performed by a qualified mechanic to ensure proper alignment and tensioning of the clutch system.

In summary, the Weber MPE-750 Rotor Flywheel is a high-performance accessory designed for Williams tender applications. Its heavy-duty construction, precision machining, and compatibility with standard clutch systems make it an ideal choice for those seeking improved power and torque, reliable ignition, and efficient power transfer from the engine to the propeller.

The Weber MPE-750 Rotor Flywheel by Williams Tender is a popular accessory for outboard motors, particularly for those seeking improved engine performance and smoother operation. Here are some pros and cons that may help you in making an informed decision about purchasing this flywheel:

1. Enhanced Engine Performance: The Weber MPE-750 Rotor Flywheel is designed to provide better engine performance by increasing the effective mass of the crankshaft, which results in more power and torque.

2. Smoother Operation: The flywheel's larger size and improved design help to reduce vibrations and engine surging, resulting in a smoother and more stable operation.

3. Durability: The Weber MPE-750 Rotor Flywheel is made from high-quality materials and is built to last, ensuring long-term reliability and durability.

4. Easy Installation: The flywheel is relatively easy to install, and most users report that the process takes only a few hours with basic hand tools.

5. Improved Fuel Efficiency: By reducing engine surging and improving overall performance, the flywheel can help to improve fuel efficiency, resulting in cost savings over time.

1. Cost: The Weber MPE-750 Rotor Flywheel is a premium accessory, and its price tag may be a barrier for some buyers.

2. Weight: The flywheel is heavier than a standard flywheel, which may make it more difficult to maneuver the boat in tight spaces or when docking.

3. Compatibility: The flywheel is designed specifically for certain outboard motor models, so it may not be compatible with all types and brands of outboard engines.

4. Maintenance: While the flywheel is built to last, it may require occasional maintenance to ensure optimal performance, such as balancing and lubrication.

In conclusion, the Weber MPE-750 Rotor Flywheel by Williams Tender is an excellent investment for those seeking improved engine performance, smoother operation, and increased durability in their outboard motor. While its cost and potential weight may be drawbacks for some, the benefits of this premium accessory can outweigh the initial investment in the long run.

Recommendation: If you are an avid boater or commercial user who relies heavily on your outboard motor for work or recreation, the Weber MPE-750 Rotor Flywheel is a worthwhile investment. Its improved engine performance, smoother operation, and durability can help to save time, fuel, and maintenance costs over the long term. However, for casual users or those with a limited budget, the flywheel may not be a necessary investment, as the benefits may not outweigh the initial cost. Ultimately, the decision to purchase the Weber MPE-750 Rotor Flywheel should be based on your specific needs, usage patterns, and budget.

Details:

Will Not fit the Polaris FS FST snowmobile engines. Also fits the Reline Revolt Riot Fits Polaris MSX-110 MSX-150 Jet ski. Fits all Yacht Tenders with the Weber MPE-750 engine; Zodiac, Avon, Williams, Novena and more.

part #: 400700 prices

• $40.50-$259.00

specifications perwatercraft:

• brand: Weber
• mpn: 400700
• part type: Rotor Flywheel
• country of origin: Germany

offer perwatercraft:

• sold: 0
• started: December 20, 2025
• best offers: True
• quantity: 1
• options: Seller-arranged-local-pickup
• availability: In Stock

returns perwatercraft:

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

general perwatercraft:

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

seller perwatercraft:

• rating: 100.0%
• city: Bremerton, Washington
• # reviews: 1365

payments perwatercraft:

• other
• wallet: Paypal
• credit card: Visa

shipping perwatercraft:

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