Kawasaki KX450F 100mm Big Bore Top End Kit (2009–2015)
💥 100mm Big Bore Top End Rebuild Kit – Kawasaki KX450F (2009–2015)
Give your KX450F a serious power upgrade with this bolt-on 100mm big bore top end kit. Built for riders who want more torque and throttle response, this setup is designed to drop in with no machining required.
✅ Fits all Kawasaki KX450F models from 2009–2015
📦 Kit Includes:
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100mm Big Bore Cylinder – Ready to install, no mods needed
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CP-Carrillo Custom Forged Piston – High-strength, performance-grade
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Piston Rings, Wrist Pin, Circlips
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Top End Gasket Kit – Includes head, base, exhaust gaskets
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Cam Chain – Maintains precise valve timing
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Heavy-Duty Head Stud Kit – Improved sealing and durability
🔧 Key Features:
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Fully bolt-on — no machining required
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Piston compatible with pump or race gas
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Designed for aggressive off-road, MX, and race use
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All components brand new in original packaging
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Covered by original manufacturer warranties
📦 Shipping Time:
Ships within 5–7 business days. Tracking sent once fulfilled.
💬 Customer Support:
Available Monday–Friday, 7 AM to 4 PM PST, and live store chat is open 24/7.
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.
Sold items are removed daily.
If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.
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