CATERPILLAR-ENGINE-BLOCK-PLUG

153-5384 is an engine block plug for Caterpillar engines, sealing one of the core holes left in the block casting from manufacturing. Getting the correct size and material for these plugs matters more than it seems — a plug that's slightly undersized or the wrong material can work loose under coolant pressure and temperature cycling in a way that's hard to diagnose from outside the engine. Orange.net.za ships this part fast, South Africa-wide.