Precision Engineered Connecting Rod Bearings
Crafted from high-grade alloy steel with advanced surface treatment for superior wear resistance and extended lifespan. Precision-machined to exact OEM specifications (3966244, 3950661, 3901460, 3901430) ensuring seamless fit and optimal load distribution.
Durability Under Extreme Conditions
Reduces friction and heat buildup in high-performance engines, ideal for heavy-duty machinery, automotive repairs, and industrial equipment.
Global Bulk Supply Advantage
Direct factory pricing with no middlemen—lowest wholesale rates guaranteed for large orders. Ships worldwide with full-category sourcing support.
Trusted Replacement Part
Strict QC testing ensures reliability as a direct replacement for ISLE QSL9 and compatible engines. Stock up for fleet maintenance or resale with confidence.