KPMI Wrist Pin Bushing - Harley Big Twin
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.
Maintain the critical clearances in your Big Twin engine with a KPMI wrist pin bushing. Engineered to OEM dimensions and backed by Kibblewhite quality, this component is built for lasting performance.
Why riders pick this
- Kibblewhite quality manufacturing
- Excellent anti-friction properties
- High hardness for durability
- Tight dimensional tolerances
- Tapered lead for easy installation
This KPMI wrist pin bushing is an essential component for the connecting rod and piston assembly in your Harley Big Twin engine. Manufactured to OEM dimensions with Kibblewhite's renowned quality, it provides excellent anti-friction properties and high hardness to resist wear under the intense loads of combustion. Ensuring proper movement of the wrist pin is crucial for the longevity and smooth operation of your V-twin.
Engineered for Lasting Durability
- Kibblewhite quality and precision manufacturing
- Excellent anti-friction and wear resistance
- High hardness for load-bearing durability
- Tight dimensional tolerances for a precise fit
- Tapered lead on each end for easy installation
A Smart Choice for Engine Longevity
When rebuilding or maintaining your Big Twin, choosing quality components like this KPMI wrist pin bushing is paramount. It helps restore proper clearances and reduces friction, contributing to a quieter, more efficient engine. Designed as a direct replacement, it provides the reliability and performance necessary for your Harley-Davidson Big Twin model.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-20572
- Length: 1.05 in
- Width: 3.45 in
- Height: 1.05 in
- Weight: 0.09 lbs
Common questions
What is a wrist pin bushing and why does it matter for my engine?
The wrist pin bushing reduces friction between the connecting rod and the piston pin, allowing the piston to articulate smoothly. It's a critical wear component that, when replaced during a rebuild, ensures proper clearances and contributes significantly to engine longevity under high combustion pressure.
Is this an OEM replacement part?
Yes, KPMI manufactures this wrist pin bushing to original OEM dimensions and specifications, ensuring it functions as a direct replacement for your Harley-Davidson Big Twin engine. It's designed to meet or exceed the performance of the factory component.
Do I need special tools to install this wrist pin bushing?
Installation of wrist pin bushings typically requires specialized engine building tools such as a bushing press and reamer to ensure accurate fitment and proper alignment. We recommend having this procedure performed by a qualified engine builder or machine shop.
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 | 191-57082 |
| WEIGHT | 0.09 lb |
