Quicksilver 8M0054588 Ignition Coil ECM 555

Quicksilver 8M0054588 Ignition Coil ECM 555

Quicksilver 8M0054588 is a genuine Quicksilver ignition coil for select MerCruiser sterndrive and inboard MPI engines using ECM 555. It replaces 863704T where this ignition coil is specified by the factory parts diagram.

Key Features

• Genuine Quicksilver marine ignition coil
• For select MerCruiser sterndrive and inboard MPI engines
• Fits compatible 4.3L, 5.0L, 5.7L, and 6.2L MPI applications with ECM 555
• Produced to meet Mercury Marine OEM specifications
• Supersedes / replaces 863704T where applicable

Fitment / Product Details

• Brand: Quicksilver
• Part Number: 8M0054588
• Product: Ignition Coil
• Application Range: 2001 and newer MerCruiser MCM/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI engines with ECM 555
• Serial Range: 0M300000 through 2A455878
• UPC: 745061877849
• Country of Origin: PL
• System: Ignition / ECM 555

Ignition coil fitment depends on engine model, serial number, ignition system, and ECM configuration. Verify fitment with your MerCruiser serial number and factory parts diagram before ordering.

What’s Included

• Quicksilver 8M0054588 ignition coil assembly

Spark plug wires, distributor cap, rotor, ignition module, harnesses, mounting hardware, and related ignition components are not included unless listed separately.

Why You Should Buy

A weak or failed ignition coil can cause hard starting, misfires, poor running, or no-spark conditions. Using the correct Quicksilver replacement coil helps restore reliable ignition performance on compatible MerCruiser MPI engines.

Common Applications

Used on select 2001 and newer MerCruiser MCM/MIE 4.3L, 5.0L, 5.7L, and 6.2L MPI engines with ECM 555 in serial range 0M300000 through 2A455878 where the factory parts listing calls for ignition coil 8M0054588.

FAQ

Does this fit every MerCruiser V6 or V8 engine?

No. This coil is for specific MPI engines with ECM 555. Verify by engine serial number before ordering.

Does this replace 863704T?

Yes. Quicksilver 8M0054588 replaces 863704T where applicable.

Can Wakeboss help confirm fitment?

Yes. Send your engine model and serial number through Ask a Parts Pro and we can help check the correct ignition coil.