Ignition Coil For Mercury Optimax – Replaces 300-879984T01, 339-879984T00, 8M0077471

Need a reliable spark for your Mercury Optimax?

This ignition coil steps in to replace a bunch of those hard-to-find OEM numbers, including 300-879984T01, 300-8M0077471, and 339-879984T00.

It’s a brand-new, unbranded component, but it’s built to get your outboard running smooth again.

The manufacturer part number is ZF-IG-A00110, and it’s made in China.

It comes in simple, non-retail packaging—just the coil, ready to install.

No frills, just the part you need to fire up those cylinders.

If your Optimax is misfiring or hard to start, this could be the cure.

Straightforward replacement, no universal fitment nonsense.