ACL Bearings 4B1870-.75 Connecting Rod Bearing Set Standard Size

The ACL Bearings 4B1870-.75 is a precision-engineered connecting rod bearing set designed for Isuzu 4XC1 and 4XC1-T 1.5L engines from 1985-1993. This bearing set features a 0.75mm undersize specification, making it ideal for engines with reground crankshafts or worn journals that have been machined to restore proper clearances.

Key Features:

• Trimetal bearing construction with copper-lead-tin lining for superior fatigue strength
• High-strength steel backing provides enhanced bearing support and retention
• Lead-tin-copper overlay layer offers excellent seizure resistance and low friction properties
• Precision manufacturing ensures consistent wall thickness and optimal oil clearances
• Nickel barrier layer prevents alloy migration between bearing layers
• 0.75mm undersize specification for professionally reground crankshafts
• Complete connecting rod bearing set for 4-cylinder Isuzu applications

ACL Bearings is recognized throughout the automotive performance industry for producing high-quality engine bearings that deliver reliable performance in both street and racing applications. Their advanced metallurgy and engineering expertise ensure these bearings can withstand the demands of rebuilt engines while maintaining proper oil film integrity for long-term durability.