Moose Offroad High-Performance 4-Stroke Race Piston Kit 0910-6517 (77.00 mm) - Yamaha YZ250F 2019-2025

Moose Offroad High-Performance 4-Stroke Race Piston Kit 0910-6517 — 77.00 mm Yamaha YZ250F

Product Description

The Moose Offroad High-Performance 4-Stroke Race Piston Kit is engineered to deliver maximum power, exceptional durability, and reduced friction for your engine. Featuring a 77.00 mm standard bore size and a high-compression 14.3:1 ratio, this kit is built for serious off-road and motocross performance.

Crafted with a fully boxed-style forging and internal bracing, it maximizes structural strength while minimizing weight. The piston includes a moly-coated skirt and an advanced DLC (Diamond-Like Carbon) coated wrist pin to drastically reduce abrasive wear and operating temperatures under extreme conditions.

Top Features: Moose Offroad Race Piston Kit

• Fully boxed-style forging design delivers ultimate structural strength, weight reduction, and minimal friction.
• Full radius dome design maximizes quench while eliminating detonation-promoting hot spots.
• Includes a DLC-coated wrist pin for superior resistance to abrasive wear and extended service life.
• Complete kit includes the piston, ring set, wrist pin, and circlips.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: What components are included in this piston kit?
A: The kit includes the forged piston, wrist pin, ring set, and circlips.

Q: What is the compression ratio of this piston?
A: This high-performance race piston features a 14.3:1 compression ratio.

Expert Pro-Tip

Expert Pro-Tip: Always check ring end gaps carefully in the cylinder bore before final assembly. Warm up your engine thoroughly through multiple heat cycles after a fresh top-end rebuild to allow rings to properly seat.

Recommended Pairings:

• Yamaha 4-Stroke Performance Parts
• Yamaha YZ250F / YZ250FX Performance Parts
• Motorcycle Tools & Accessories

About Moto-House MX

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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