CDM Ignition Coil for Mercury 30HP 40HP 50HP 55HP 60HP Outboard

Product Overview

Replacement CDM ignition coil / capacitor discharge module for selected Mercury and Mariner outboard engines using a compatible CDM-style ignition system.

Designed for selected 30HP, 40HP, 50HP, 55HP, and 60HP 2-stroke outboard applications, this unit combines ignition-module and secondary ignition-coil functions in a single assembly.

The unit features approximately 73.7mm / 2.90 in mounting-hole spacing and a 152.4mm / 6 in ignition wire for additional fitment verification.

Before ordering, verify the engine horsepower, model/serial number, original CDM part number, mounting dimensions, electrical connections, and original module appearance.

Product Compatibility

Make	Engine	Engine Type	Fitment Notes
Mercury / Mariner	30HP	2-Stroke	Selected CDM ignition applications
Mercury / Mariner	40HP	2-Stroke	Verify engine serial number and original CDM
Mercury / Mariner	50HP	2-Stroke	Selected CDM-equipped models
Mercury / Mariner	55HP	2-Stroke	Verify OEM number
Mercury / Mariner	60HP	2-Stroke	Selected compatible applications

Fitment varies by year, cylinder configuration, and engine serial number. Horsepower alone should not be used to confirm compatibility.

Related OEM Cross-Reference Numbers

This CDM design is commonly associated with the Mercury ignition-module family that includes references such as:

• 827509A1
• 827509A3
• 827509A4
• 827509A7
• 827509A8
• 827509A9
• 827509A10
• 827509T7
• 114-7509

Important: These are related cross-reference numbers for this CDM family. Confirm the number on the original module and compare the replacement physically before ordering.

Specifications

Specification	Details
Product Type	CDM Ignition Coil / Ignition Module
Ignition Type	Capacitor Discharge Module (CDM)
Application	Mercury / Mariner Outboard
Listed Horsepower	30HP–60HP
Engine Type	Selected 2-Stroke Applications
Mounting Hole Spacing	Approx. 73.7 mm / 2.90 in
Ignition Wire Length	Approx. 152.4 mm / 6 in
Condition	New
Package Quantity	1 CDM Ignition Coil

Key Features

• CDM Ignition Design: Combines capacitor-discharge ignition-module and secondary ignition-coil functions in one assembly.
• Mercury Outboard Application: Designed for selected Mercury/Mariner 30HP–60HP CDM-equipped engines.
• 73.7mm Mounting Reference: Provides an important physical measurement for comparison with the original module.
• 6-Inch Ignition Lead: Approximately 152.4mm wire length for compatible installations.
• Marine Replacement Component: Designed for use as a replacement ignition component in compatible outboard applications.