The Perkins 81081C is a genuine connecting rod bearing set designed for specific Perkins diesel engines. This set features a .040 inch (1.016 mm) oversize, crucial for engine rebuilds where crankshaft journals have been reground. It ensures proper fitment and optimal performance for models including the 4.236, 4.248, 6.354, 1004, 1104, and 1106 series, as well as V8 engines. Manufactured to Perkins' stringent quality standards, this bearing set is essential for maintaining engine integrity and longevity.