ACL Bearings 4B1635A-1.00 Standard Connecting Rod Bearings 1.00mm Undersize

The ACL Bearings 4B1635A-1.00 connecting rod bearing set delivers precision-engineered protection for your engine rebuild. Designed for Volkswagen 4-cylinder applications, these 1.00mm undersize bearings are manufactured to ACL's exacting standards using advanced trimetal construction for superior durability and reliability.

Key Features:

• Trimetal construction with high-strength overlay plate for improved fatigue resistance
• Hardened steel backing provides enhanced support and bearing retention
• Increased crush design ensures optimal bearing retention in the housing
• Elimination of flash plating improves heat transfer and maximizes grip
• Tight wall tolerances help maintain consistent bearing clearances
• Enlarged chamfers accommodate performance crankshaft fillet radii
• 1.00mm undersize for reground crankshafts

ACL's proven bearing technology has been trusted by professional engine builders and racing teams worldwide for decades. These connecting rod bearings feature reduced overlay thickness for improved fatigue properties while maintaining the load-carrying capacity needed for demanding applications. The hardened steel backing ensures the bearing maintains its shape under high loads and temperatures, while the increased eccentricity helps compensate for bore distortion at higher RPMs.

Perfect for engine rebuilds where the crankshaft has been machined 1.00mm undersize, these bearings provide the precision fit and durability required for reliable long-term performance.