Vertex 94.95mm Forged Top End Piston Kit Yamaha YFZ450R/X (0910-3842)
Vertex 94.95 mm Forged Replica Top End Piston Kit – Yamaha YFZ450R / YFZ450X (2009–2023)
🛠️ Description
Rebuild your Yamaha YFZ450 the right way with the Vertex Forged Replica Top End Piston Kit. This kit includes a forged OEM-style piston, complete top-end gasket set, cam chain, and clutch side cover gasket—everything you need for a full top-end refresh. The piston is forged from 2618 aluminum, heat-treated through a T-5 cycle, and coated with molybdenum disulphite on the skirt for reduced friction, quicker break-in, and longer piston life.
✅ What’s Included
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1x Forged Replica Piston (94.95 mm, 12.0:1 compression) (A Piston)
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1x Ring Set
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1x Wrist Pin
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2x Circlips
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Top-End Gasket Kit
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Cam Chain
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Inner Clutch Side Cover Gasket
📦 Fitment
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2009–2023 Yamaha YFZ450R
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2009–2023 Yamaha YFZ450R SE
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2010–2011 Yamaha YFZ450X
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2010 Yamaha YFZ450X Bill Balance
🛡️ Warranty Info
Vertex piston kits are backed by a limited warranty against manufacturing defects. Warranty excludes improper installation, tuning errors, or race-related damage. Professional installation recommended.
🔑 Key Features
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Forged 2618 aluminum piston, OEM-style replica design
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Heat-treated with T-5 hardening and tempering cycle
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Molybdenum disulphite skirt coating for reduced friction and faster break-in
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12.0:1 compression ratio for performance and reliability
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Complete top-end kit with piston, gaskets, cam chain, and cover gasket
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Direct OEM replacement – ready to install
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.