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50 Caliber Racing
Yamaha Rhino 660cc Big Bore Kit (686cc)
$22999
Unit price /
Unavailable
Unleash More Power: Yamaha Rhino 660cc Big Bore Kit (686cc)
Revitalize your Yamaha Rhino, Raptor, or Grizzly 660 with this comprehensive 686cc Big Bore Kit. Engineered for enhanced performance and reliability, this kit offers a significant power upgrade for your off-road adventures, making it an essential modification for riders seeking an edge.
686cc
TOTAL DISPLACEMENT
102mm
BORE SIZE
10:1
COMPRESSION RATIO
Bolt-On
INSTALLATION TYPE
✓ 102mm Cylinder
✓ 10:1 Piston
✓ Piston Ring Kit
✓ Circlips (2)
✓ Wrist Pin
✓ Base Gasket
✓ Head Gasket
✓ NGK Spark Plug
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Enhanced Cooling Features larger than stock water jackets to significantly improve cooling efficiency and component longevity.
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Reliable Performance Offers a more dependable solution than modifying your stock cylinder, ensuring consistent power delivery and durability.
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Easy Installation Designed for a straightforward bolt-on process, making it accessible for enthusiasts with basic mechanical skills.
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Revitalized Power Breathe new life into your Yamaha with a significant increase in displacement and overall performance.
In Stock & Ready To Ship
Processing: Packed with care before shipment Tracking: Sent when shipped Confirmation: Sent after checkout
Although rare, some delays may occur. We’ll keep you updated every step of the way.
Big Bore Kit vs. Stock Components
STOCK [PRODUCT TYPE]
✗ Smaller displacement ✗ Stock cooling limitations ✗ Less reliable than updated designs ✗ Requires professional machine work to increase bore ✗ Slower throttle response
⚡ YAMAHA BIG BORE KIT
✓Increased 686cc Displacement ✓Enhanced Cooling System ✓High-Quality Components ✓Bolt-On Installation ✓Improved Power & Response
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Bolt-On Installation
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Quality Guaranteed
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Expert Support
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Performance Upgrade
What Riders Are Saying
This kit is a game changer! My Rhino finally has the power it needs to tackle any trail. Installation was straightforward, and the improved cooling is noticeable. Highly recommend! — John D., California
Unbelievable difference in performance after installing this big bore kit. The torque increase is significant, and the engine feels much stronger. Worth every penny for the added power and reliability. — Sarah K., Arizona
Ready to Dominate the Trails?
Upgrade your Yamaha's power and performance today.
