Velvac 601018-6 Locking Gas Cap

Velvac 601018-6 Locking Gas Cap is a heavy-duty locking fuel cap designed to secure commercial vehicle fuel systems and deter theft. It uses a keyed locking mechanism and a non-vented, fused design, making it suitable for use on properly vented fuel tanks; alternate identifiers are 68D-14L and 68L-14. The cap features a male thread, a 4-1/4 in nominal size, and 8 TPI, and is built from heavy-duty metal for rugged service on saddle fuel tanks in heavy-duty trucks, commercial buses, construction equipment, agricultural machinery, and fleet vehicles. It is an OEM replacement component for Velvac installations, with common replacements including Velvac 600169-6, 600051-6, and 600150 locking fuel caps.