BCA NEP31-003B-4 Timing Belt Tensioner Bearing

The BCA NEP31-003B-4 is a precision-engineered timing belt tensioner bearing designed for automotive engine timing systems. This component serves as a deflection or guide pulley that maintains proper tension on the timing belt, ensuring optimal engine performance and preventing premature belt wear.

Key Specifications:

• Inner diameter: 16.3mm
• Outer diameter: 75mm
• Width/Build height: 31mm
• OEM cross-reference: 13073-AA220, 13073-AA230
• Alternate part number: VKM88008

Features:

• Precision bearing construction for smooth operation and extended service life
• Designed to meet OEM specifications for reliable performance
• Reduces friction and wear on timing belt systems
• Essential component for timing belt maintenance and replacement

This tensioner bearing is commonly used in timing belt assemblies and is critical for maintaining proper belt alignment and tension. Regular inspection and replacement of tensioner bearings during timing belt service helps prevent catastrophic engine damage from belt failure.