Hot Cams Titanium Exhaust Valve – YFZ450R/YFZ450/YZ450F/WR450F (2003–2019) | 8400008-1
Hot Cams Titanium Exhaust Valve — Yamaha YFZ450R / YFZ450 / YZ450F / WR450F (2003–2019) — 8400008-1
Upgrade your exhaust side with a forged, precision-machined titanium valve engineered to reduce valvetrain weight and handle high RPM abuse. This Hot Cams exhaust valve installs seamlessly with OEM keepers and retainers, restoring sealing and durability while improving throttle response on built or refreshed motors.
Features
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Forged titanium construction for strength with reduced mass
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Precision machined for consistent sealing and longevity
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OEM-compatible: uses stock keepers and retainers
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Designed to meet or exceed OEM specs & standards
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Ideal for performance rebuilds and race applications
Fitment / Compatibility
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YFZ450R / SE: 2009–2019
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YFZ450X (incl. Bill Ballance/SE): 2010–2011
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YFZ450 (incl. SE / Bill Balance): 2004–2009
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YZ450F: 2003–2009
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WR450F: 2003–2015
Part Details
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Part No.: 688-84081 • Brand No.: 8400008-1
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Weight: 0.05 lbs • Package: 4.80 × 1.75 × 1.75 in
📦 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.
