Genuine KOYO 6205-C4 main crankcase bearing manufactured in Japan for high-performance kart racing engines.
The 6205-C4 is one of the most widely used crankshaft main bearings in kart racing and is commonly found in many modern KZ, KA100 and VLR engine applications. The C4 internal clearance is specifically designed for high-RPM operation and elevated operating temperatures commonly encountered in competitive kart racing.
Manufactured by KOYO Japan, these bearings are trusted by engine builders worldwide for their precision manufacturing, reliability, and long service life.
Specifications:
• Brand: KOYO
• Bearing Size: 6205-C4
• Inner Diameter: 25mm
• Outer Diameter: 52mm
• Width: 15mm
• Internal Clearance: C4
• Made in Japan
• Sold Individually
Common Applications:
• KZ Engines
• TM KZ Engines
• Modena KZ Engines
• Vortex KZ Engines
• IAME KA100
• Vortex VLR
Additional Known Applications:
• IAME Leopard
• Parilla Leopard
• HPV
• KPV
• Yamaha KT100
• ICC Engines
• Various 2-stroke kart racing engines utilizing a 6205-C4 crankshaft main bearing
Features:
• Genuine KOYO Japanese Bearing
• High-RPM Racing Design
• Excellent Crankshaft Support
• Low Friction Operation
• Superior Durability
• Engine Builder Preferred
• Ideal For Performance Engine Rebuilds
Always verify bearing size and engine application before ordering.


