VALVE EXHAUST YZF400 426 98-02, KIBBLEWHITE 80-8057H
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White Diamond Stainless Steel Exhaust Valve for Yamaha WR and YZ 400/426 models 1998-2002. CNC machined from a single forging of EV8 Stainless Steel with high heat and corrosion resistance. Features a high-quality hard chrome finish applied via a 360-degree anode process for consistent durability. Developed using Finite Element Analysis and tested for flow efficiency to support reliable exhaust performance. Head Diameter: 28.00mm / 1.102". Stem Diameter: 5.00mm / 0.1955". Tulip Angle: 25 degrees. Overall Length (OL): 81.85mm / 3.220". Standard size. Kibblewhite Part No. 80-8057H.
- SKU
- 65-496.KW.SS
- Brand
- Kibblewhite
- Availability
- In Stock (6)
Fitments (16)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 400F | 1998 |
| YAMAHA | WR 400F | 1999 |
| YAMAHA | WR 400F | 2000 |
| YAMAHA | WR 426F | 2000 |
| YAMAHA | WR 426F | 2001 |
| YAMAHA | WR 426F | 2002 |
| YAMAHA | YZ 400F | 1998 |
| YAMAHA | YZ 400F | 1999 |
| YAMAHA | YZ 400F | 2000 |
| YAMAHA | YZ 426F | 2000 |
| YAMAHA | YZ 426F | 2001 |
| YAMAHA | YZ 426F | 2002 |
| YAMAHA | YZ 450F | 2010 |
| YAMAHA | YZ 450F | 2011 |
| YAMAHA | YZ 450F | 2012 |
| YAMAHA | YZ 450F | 2013 |
- General Product Group
- Cam & Valvetrain
- General Product Type
- Valve - Exhaust
- Variant Id
- 264021
FULL DESCRIPTION
Kibblewhite White Diamond® Stainless Steel Exhaust Valve
This premium exhaust valve is expertly CNC machined from a single forging of EV8 Stainless Steel, ensuring superior strength and durability. Engineered for high-performance applications, it offers exceptional resistance to both heat and corrosion, making it ideal for demanding riding conditions. The valve features a high-quality hard chrome finish, meticulously applied through a 360-degree anode process to guarantee a uniform and long-lasting coating.
Developed using advanced Finite Element Analysis (FEA) and rigorously tested for flow efficiency on a computerized flow bench, this exhaust valve is optimized to support reliable exhaust performance. For optimal results and reliability, it is recommended for use with Kibblewhite valve spring kits (Part No. 65-724).
Key Features:
- CNC machined from a one-piece EV8 Stainless Steel forging
- Excellent heat and corrosion resistance
- Durable hard chrome finish with 360-degree anode coating
- Finite Element Analysis (FEA) design
- Flow-optimized profile tested for efficiency
- Standard size
Specifications:
- Head Diameter: 28.00mm / 1.102"
- Stem Diameter: 5.00mm / 0.1955"
- Tulip Angle: 25 degrees
- Overall Length (OL): 81.85mm / 3.220"
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