KPMI STD 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 optimal exhaust valve operation in your Milwaukee-Eight engine with this KPMI standard bronze exhaust valve guide. It's an OEM-replacement spec component, perfect for riders rebuilding top-end components or replacing worn guides on their Harley-Davidson V-twin.
Why riders pick this
- Standard size OEM replacement
- Bronze construction for durability
- For Milwaukee-Eight exhaust valves
- Withstands high exhaust temperatures
The exhaust side of your Milwaukee-Eight engine endures significant heat and stress, making quality valve guides essential for sustained performance. This KPMI bronze exhaust valve guide is engineered to standard OEM specifications, providing a direct fit replacement. Its durable bronze construction is designed to withstand the harsh environment of the exhaust port, maintaining proper valve stem alignment and sealing for improved engine efficiency and longevity.
Durable Design for Exhaust Demands
- Standard OEM-replacement size for easy installation
- Constructed from high-quality bronze for superior heat and wear resistance
- Specifically designed for Milwaukee-Eight exhaust valve applications
- Helps maintain consistent valve sealing and reduce oil consumption
Critical for M8 Top-End Reliability
Replacing worn exhaust valve guides is a fundamental step in any Milwaukee-Eight top-end rebuild, preventing issues like excessive oil burning and loss of compression. This KPMI standard guide ensures that your exhaust valves operate with the correct clearances, which is vital for maintaining engine health and peak performance. While professional installation with specialized tools is often recommended, this component offers the quality needed for a lasting repair.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-21030
- Length: 3.5 in
- Width: 5.12 in
- Height: 1 in
- Weight: 0.09 lbs
Common questions
What Harley-Davidson engines does this exhaust valve guide fit?
This KPMI valve guide is designed for Milwaukee-Eight (M8) V-twin engines. It is not compatible with Twin Cam or earlier Harley-Davidson engines.
Is this a standard or an oversized valve guide?
This is a standard size exhaust valve guide. KPMI also offers oversized guides for cylinder heads that may require reaming.
Are special tools needed for installation?
Valve guide installation typically requires a press or a specialized hammer and driver tool. Many riders opt for professional installation during a top-end rebuild.
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 | 191-57074 |
| WEIGHT | 0.09 lb |
