Ignition Coil for Mercury / Mariner Outboards

High-quality marine-grade aftermarket ignition coil for selected Mercury and Mariner 30 HP & 40 HP 3-cylinder 4-stroke outboards.

Designed as a direct replacement for 8M0045124 / 8M0034012.

Fitment

30 HP EFI – 3 Cylinder 4 Stroke

1C109093 & Up
Includes 1C109093–1C456299
1C456300 & Up

40 HP EFI – 3 Cylinder 4 Stroke

1C043417 & Up
Includes 1C043417–1C456299
1C456300 & Up

Also listed for selected 40 HP Carburettor 3-cylinder 4-stroke applications using this same ignition coil.

Mercury parts diagrams specify 8M0045124 for these 30/40 HP 3-cylinder applications.

Replaces Part Numbers

8M0034012
8M0045124

Aftermarket Cross Reference

REC8M0045124

OEM manufacturer names and part numbers are provided for identification and compatibility reference only.

Product Features

Marine-grade aftermarket ignition coil
Mercury / Mariner applications
30 HP / 40 HP
3 Cylinder
4 Stroke
EFI applications
Direct replacement for 8M0045124
New replacement component

⚠️ Important – Check Compatibility

Please check your engine serial number and original ignition coil part number before ordering.

Mercury used different ignition coils across similar horsepower engines.

Appearance alone does not confirm compatibility.

If unsure, send SSI Marine your engine horsepower + complete serial number and we will help check compatibility.

What's Included

1 × Ignition Coil

Please note: 3-cylinder engines use three ignition coils. This listing is for ONE coil unless otherwise stated.

Buyer Responsibility

It is the buyer's responsibility to confirm compatibility before purchasing.

Ignition faults should be correctly diagnosed before replacing the coil, as spark plugs, wiring, ECU/CDI or other ignition components can produce similar symptoms.

Why Buy From SSI Marine?

Marine-grade aftermarket & OEM-spec parts
Workshop-tested products
More than 10 years supplying outboard parts
Same-day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
UK stock – collection from Leigh
Technical support from experienced outboard specialists

30 HP 40 HP Mercury Mariner Outboard 4 Stroke EFI Ignition Coil 8M0045124