Main Bearing (Individual)

Restore smooth, reliable crank operation with an OEM-spec ProX main crankshaft bearing. Manufactured in leading OEM factories (mainly in Japan), this bearing is built to exact OEM specifications to deliver the fit, durability and performance you expect during an engine rebuild. When you’re refreshing a bottom end, correct bearing tolerances are critical—this ProX bearing helps reduce unwanted play, supports consistent rotation and contributes to long engine life.

Whether you’re servicing a motocross or enduro engine, choosing an OEM-dimensioned main bearing is a smart way to protect your investment and keep performance consistent ride after ride.

Key features:

• ✅ OEM-factory manufacturing (mainly Japan) – produced at leading OEM facilities
• ✅ Exact OEM specifications – designed for proper fitment and dependable performance
• ✅ Main crankshaft application – made for critical bottom-end use

Benefits of use:

• 🔹 Reliable rebuild quality – supports durability under high load and RPM
• 🔹 Confidence in fitment – OEM-spec sizing helps avoid installation and clearance issues
• 🔹 Cost-effective service – sold individually so you can replace exactly what you need

Technical specifications:

• 📌 Brand: ProX
• 📌 Type: Crankshaft bearing
• 📌 Application: Main crankshaft
• 📌 Units: Each (individual bearing)
• 📌 Vendor part number: 23.830046-1

Why choose this product?

• ⭐ OEM-spec manufacturing for dependable quality
• ⭐ Designed to match original specifications for performance and longevity
• ⭐ Practical choice for planned engine rebuilds and preventive maintenance