Del West +1mm Titanium Outer Intake Valve – Yamaha YFZ450 / YFZ450R / YFZ450X (2004-2014)
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- 30-day hassle-free returns
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Del West +1mm Oversized Titanium Outer Intake Valve – Yamaha YFZ450 / YFZ450R / YFZ450X
Increase flow and power with the Del West +1mm Oversized Titanium Outer Intake Valve, designed for race-level performance and maximum reliability. Built from aerospace-grade titanium aluminide, this valve delivers ultra-lightweight strength, heat resistance, and precise airflow control — essential for ported heads and high-RPM YFZ450 builds.
✅ What’s Included
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(1) Del West +1mm Oversized Titanium Outer Intake Valve
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CNC-machined, ready for drop-in installation
⚙️ Key Features & Benefits
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+1.00 mm Oversized Head: Improves intake flow for stronger mid-to-top-end power gains
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Titanium Aluminide Construction: Extremely durable yet lightweight for reduced valve float
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Race-Proven Reliability: Trusted in championship-winning YFZ450R and WR/YZ450F engines
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High-Temperature Stability: Maintains performance under extreme heat and load
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Direct OEM Fit: Works seamlessly as the outer intake valve in all YFZ450/R/X engines
📦 Compatibility
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Yamaha YFZ450 (2004–2014)
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Yamaha YFZ450R (2009–2014)
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Yamaha YFZ450X (2010–2011)
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Includes SE, LE, and Bill Balance Editions
🛡️ Warranty Info
Manufacturer warranty included.
Professional installation and proper valve clearance setup required to maintain warranty coverage.
💲 Price: $155.95 (Suggested Retail)
🔢 SKU: 0926-1758 / DWYFZ450R12IV03
🏷️ Brand: Del West
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
