CATERPILLAR-PLUG

1N3762 is another legacy-reference Caterpillar plug, likely sealing an oil gallery or block core opening depending on the specific application. These plugs rarely fail on their own — they're usually removed and need replacing after some other repair has required their removal, which is why keeping stock of odd legacy sizes matters for completing a job rather than leaving it half-finished. Orange.net.za ships this part fast, South Africa-wide.