KPMI 0.001 Bronze Exhaust Valve Guide - Harley Milwaukee-Eight
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.
Ensure precise exhaust valve operation in your Milwaukee-Eight engine with this KPMI bronze exhaust valve guide. Precision-machined with a 0.001-inch manufacturing tolerance, it's an OEM-spec replacement for stock guides during top-end service or rebuild.
Why riders pick this
- Bronze construction for lasting durability
- 0.001-inch tolerance for OEM-spec fit
- Direct fit for Milwaukee-Eight exhaust valves
- Restores precise valve stem alignment
Worn exhaust valve guides can compromise engine performance and lead to excessive oil consumption in your Milwaukee-Eight. This KPMI exhaust valve guide, crafted from durable bronze, offers a direct replacement with a 0.001-inch manufacturing tolerance, ensuring an OEM-spec fit. It's an essential component for any top-end refresh or rebuild, helping to restore valve stability and sealing efficiency under the high-heat demands of the exhaust system.
Precision and Durability for Exhaust Systems
- Constructed from high-quality bronze for superior wear resistance
- Features a 0.001-inch manufacturing tolerance for OEM-spec fitment
- Direct replacement for stock M8 exhaust valve guides
- Engineered for consistent valve stem alignment and sealing
Vital for M8 Engine Health
Replacing exhaust valve guides during a top-end rebuild is crucial for maintaining proper compression and extending the life of your Milwaukee-Eight engine. This KPMI guide ensures that your exhaust valves operate with the correct clearances, preventing excessive movement that can lead to premature valve and seat wear. While specialized tools are necessary for proper installation, the precision fit of this guide is fundamental to a successful and long-lasting engine repair.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-21031
- Material: Bronze
- Length: 3.5 in
- Width: 5.12 in
- Height: 1 in
- Weight: 0.09 lbs
Common questions
Is this valve guide for intake or exhaust applications?
This KPMI valve guide is specifically for exhaust applications. KPMI offers separate part numbers for intake guides.
What does the 0.001-inch tolerance mean?
The 0.001-inch tolerance refers to the precision manufacturing tolerance, ensuring an OEM-spec fit for proper valve stem clearance in your M8 engine.
Do I need to replace both intake and exhaust guides?
The need to replace both depends on your engine's condition and rebuild scope. It's wise to inspect all guides; if one is worn, others may also require service, especially on high-mileage engines.
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 | 191-57075 |
| WEIGHT | 0.09 lb |
