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18495A26 Mercury Switchbox | Genuine Used Part

18495A26 Mercury Switchbox | Genuine Used Part

$200.00 AUD
$200.00 AUD
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🔧 Product Description

Genuine Mercury Switch Box / Ignition Module - Part Number: 18495A26

A genuine Mercury switch box used in selected Mercury and Mariner two-stroke ignition systems. This module controls ignition energy discharge to the coils and is a critical part of the outboard spark system.

⚙️ Key Features

  • Genuine Mercury switch box
  • Correct part number 18495A26
  • Ignition discharge module for Mercury / Mariner two-stroke systems
  • Related to the 18495 switch-box family
  • Must be matched by exact serial-numbered ignition diagram

🚤 Compatibility

Commonly used on

  • Mercury / Mariner two-stroke switch-box ignition systems

Typically suits

  • Engine models:
  • Mercury two-stroke outboards using 18495A26 switch box
  • Mariner two-stroke outboards using 18495A26 switch box
  • Mercury ADI ignition systems where the serial-numbered diagram specifies 18495A26
  • Mercury inline and V-family ignition systems using the 18495 switch-box family
  • HP Range: application-dependent Mercury / Mariner two-stroke ignition systems
  • Engine Type: Mercury / Mariner two-stroke outboard
  • Year Range: serial-number controlled
  • Serial / Model Note: Match by exact Mercury serial number, switch-box part number, number of boxes fitted and wiring colour layout.

🔌 Function

The switch box stores and releases ignition energy to the ignition coils when triggered by stator and trigger circuits.

⚠️ Common Signs of Failure

  • No spark or weak spark
  • Intermittent spark loss when hot
  • Hard starting or no-start condition
  • Misfire under load
  • Fault remains after stator, trigger, coil and harness checks
  • Water, heat or corrosion damage at connectors
  • Spark returns when a known-good module is fitted

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 18495A26 listed Mercury switch box reference
  • 18495A19 related earlier switch box reference
  • 18495A15 related earlier switch box reference
  • 18495A11 related earlier switch box reference

OEM / Related Numbers

  • 18495A26
  • 18495-A26
  • 18495A19
  • 18495A15
  • 18495A11
  • Switch box assembly
  • Ignition control box
  • Mercury ADI ignition module family

Aftermarket / Verified Equivalents

  • CDI Electronics switch-box replacements may be available by matching exact 18495A26 application
  • Sierra switch-box equivalents may be available by serial-numbered ignition system

📦 Condition

  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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