CATERPILLAR-3400-MAIN-BEARING-064

4W5702 is a main bearing, not a connecting rod bearing, for Caterpillar's 3400 series engines at the 0.64mm undersize step. Main bearings support the crankshaft itself against the block rather than supporting a connecting rod, and while it's listed alongside conrod bearings in this catalogue, it's worth being clear on the distinction before ordering, since the two aren't interchangeable. Orange.net.za ships this part fast, South Africa-wide.