YAMAHA 247957 Je Engine Motor Block Piston

( Manufacturer Part Number: 247957 ), ( Type: Piston )

Review YAMAHA Aftermarket Je Engine Motor Block Piston fits YFZ450R 2009

The Yamaha YFZ450R Je Engine Motor Block, Part Number 247957, is a critical component of the high-performance YFZ450R ATV (All-Terrain Vehicle) engine. This motor block is meticulously crafted using advanced casting technology to ensure superior strength, durability, and reliability.

The motor block is a key structural component of the engine, housing the cylinders and providing a stable foundation for the pistons, connecting rods, and crankshaft. It is engineered to withstand the extreme forces generated during off-road riding, ensuring consistent performance even in the most challenging conditions.

The cylinder bores in the motor block are precision machined to ensure a perfect seal with the pistons and cylinder liners. This ensures optimal compression and combustion efficiency, delivering maximum power output from the engine.

The motor block is also designed with excellent cooling capabilities. It features large, finned cooling surfaces that help dissipate heat generated during engine operation, maintaining optimal operating temperatures for consistent performance and longevity.

Additionally, the motor block is designed with a wet sump oil system. This system provides efficient oil lubrication to all moving parts of the engine, ensuring long-lasting performance and reducing wear and tear.

Overall, the Yamaha YFZ450R Je Engine Motor Block, Part Number 247957, is a crucial component for any YFZ450R ATV owner seeking optimal engine performance, reliability, and durability. It is manufactured to the highest standards using advanced casting technology and engineered to withstand the demands of off-road riding.

The Yamaha YFZ450R is a popular ATV model known for its powerful and agile performance. If you are in the market for a replacement engine motor block, piston assembly for this model, here are some pros and cons to help you make an informed decision.

1. OEM Part: This engine motor block and piston assembly are original equipment manufacturer (OEM) parts, which means they are designed and manufactured by Yamaha specifically for the YFZ450R.

2. Ensures Performance: Using OEM parts ensures that the engine continues to perform optimally and maintains its original specifications.

3. Durability: OEM parts are built to last, and they are designed to withstand the rigors of off-road riding.

4. Compatibility: This engine motor block and piston assembly are specifically designed for the 2009 Yamaha YFZ450R, ensuring a perfect fit and function.

1. Cost: OEM parts can be more expensive compared to aftermarket parts.

2. Availability: Depending on the supplier and location, availability of OEM parts may be limited.

3. Longer lead time: OEM parts may take longer to be delivered compared to aftermarket parts due to production and shipping times.

When considering a replacement engine motor block and piston assembly for your 2009 Yamaha YFZ450R, it is essential to weigh the pros and cons. While OEM parts may be more expensive and take longer to arrive, they ensure optimal performance, durability, and compatibility with your ATV. Ultimately, the decision comes down to your budget, time constraints, and priority for maintaining the original specifications and performance of your YFZ450R.

If you prioritize maintaining the original performance and specifications of your 2009 Yamaha YFZ450R and have the budget for it, we recommend purchasing the OEM engine motor block and piston assembly. However, if you are looking for a more cost-effective solution or can accept potential differences in performance, you may consider aftermarket alternatives. Just be sure to verify the compatibility and quality of the aftermarket parts before making a purchase.

Details:

2009 YAMAHA YFZ450R AFTERMARKET JE ENGINE MOTOR BLOCK PISTON, This piston is new! JE PISTON 96MM, Removed From: Yamaha with miles, Please review all pictures to assess the condition of item. M-force race crafts.

part #: 247957 price

• $309.99

specifications pistondon:

• for models: Yfz450r
• for makes: Yamaha
• for years: 2009
• mpn: 247957
• type: Piston

shipping pistondon:

• service: Standard
• class: Standard
• cost: $0.00
• transit: 3-6 Days
• type: Fixed

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New

returns pistondon:

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

offer pistondon:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: October 19, 2025
• best offers: True

seller pistondon:

• rating: 98.5%
• # reviews: 539
• city: Las Vegas, Nevada

payments pistondon:

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

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