KPMI Exhaust Valve Guide +0.004 Bronze - Harley Evolution & Sportster
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
This KPMI bronze exhaust valve guide is an essential component for refreshing your Harley Evolution or Sportster cylinder heads. With a +0.004 inch oversize, it's designed to precisely restore valve stem clearance and sealing in worn guide bores.
Why riders pick this
- Premium bronze for durability
- +0.004 inch oversize for worn bores
- Exhaust valve specific
- Restores valve stem clearance
- Improves engine sealing
- Direct replacement for Harley Evolution and Sportster
When your V-twin's top end needs attention, addressing worn valve guides is paramount for preventing oil consumption and maintaining consistent compression. This KPMI bronze exhaust valve guide provides a durable, high-performance solution. The +0.004 inch oversize allows for a direct replacement into existing worn bores without requiring additional cylinder head modification, streamlining your rebuild process while enhancing engine longevity and efficiency.
Key Advantages for Your V-Twin
- Durable bronze construction for excellent wear resistance and thermal properties
- +0.004 inch oversize designed for direct replacement in worn bores
- Specifically for the exhaust valve position in EVO and Sportster heads
- Restores critical valve stem clearance and improves sealing
- Ensures stable valve operation for consistent engine performance
Optimizing Your Engine Rebuild
Choosing the correct oversized valve guide is crucial for a successful engine rebuild. This KPMI +0.004 bronze guide is an ideal choice for Harley Evolution and Sportster engines experiencing moderate wear in their exhaust valve guide bores. While designed for direct replacement, professional installation using proper tools and techniques is always recommended to ensure correct fitment and long-term reliability of your V-twin's top end.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-2134
- Size: +0.004 oversized exhaust
- Material: Bronze
- Length: 1 in
- Weight: 0.09 lbs
Common questions
What does +0.004 inch oversize mean?
This guide is 0.004 inches larger in diameter than a standard guide, designed to fit into cylinder head bores that have experienced wear without needing further machining.
Is this guide for the intake or exhaust valve?
This KPMI valve guide is specifically for the exhaust valve position on Harley Evolution and Sportster engines.
Will this fit my newer Sportster?
No, this guide is designed for 1986-2003 Sportster models and 1984-1999 Evolution Big Twin engines. Newer Sportsters use different cylinder head designs.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | KPMI |
| TYPE | Engine |
| SKU | 191-57033 |
| WEIGHT | 0.09 lb |
