KPMI Black Diamond Exhaust Valve 20-B101 for Harley-Davidson Evo 1984-1999
$66.00
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KPMI Black Diamond Exhaust Valve 20-B101 for Harley-Davidson Evo 1984-1999
$66.00
All KPMI Black Diamond stainless steel valves are impregnated through a specialized process to improve wear properties, reduce friction, and provide corrosion resistance superior to chrome and nickel electrolysis plating. Designed using Finite Element Analysis software, these valves feature aerodynamically tested profiles for outstanding flow characteristics.
Each valve is precision engineered as a strong, lightweight one-piece forging. Tailored for high-demand engine configurations, this replacement exhaust valve delivers exceptional durability and consistent valvetrain performance.
Key Features
| Brand | KPMI |
| Type | Exhaust |
| Material | Black Diamond™ Stainless |
| Coating | Black Nitroneg |
| Quantity | Pkg. of 1 |
| Head Diameter | 41.02 mm |
| Stem Diameter | 7.9 mm |
| Overall Length | 113.3 mm |
| Tulip | RO1.625 |
| Remarks | Replacement (Branch Heads) |
| Product Weight | 86 g |
Highlights
- Engineered from one-piece forged stainless steel for superior strength and lightness
- Treated with a specialized surface process for enhanced wear resistance and low friction
- Optimized flow profiles developed via Finite Element Analysis
- Designed specifically for Harley-Davidson Evolution engines (1984-1999)
Materials & care
Constructed from Black Diamond stainless steel with a Black Nitroneg coating. Ensure proper lubrication and valvetrain clearances during installation.
Compatibility
Fits Harley-Davidson Evolution models from 1984 through 1999, specifically suited as a replacement for Branch Heads.
Frequently asked questions
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