43542 Mercury Coil Cover | Genuine Used Part

🔧 Product Description

Genuine Mercury Mariner Ignition-Coil Protective Cover - Part Number: 43542

A genuine used moulded ignition-coil cover used on selected Mercury and Mariner two-stroke outboards.

The plastic cover fits over a bank of ignition coils and associated high-voltage wiring. It helps prevent accidental contact, protects the coil terminals from loose hardware and keeps ignition leads routed away from moving or hot components. Mercury identifies 43542 as an ignition-coil cover, and the part is now obsolete.

⚙️ Key Features

• Genuine Mercury ignition-coil cover

• Correct Mercury reference 43542

• Moulded protective plastic construction

• Covers a group of ignition coils and wiring

• Obsolete original Mercury component

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 43542 original Mercury ignition-coil cover

• No verified supersession

• Part is listed as no longer manufactured

OEM / Related Numbers:

• 43542

• Ignition coils: 832757A2 on some documented installations

• Coil mounting plate and screws vary by engine

• High-tension leads and spark-plug boots vary by model

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

• Used OEM covers remain the principal replacement option

• Reproduction covers are not widely catalogued

🚤 Compatibility

Commonly used on:

• Mercury and Mariner two-stroke ignition-coil banks

• Three-cylinder and V6 electrical systems using cover 43542

• Engines with exposed side-mounted ignition coils

Documented examples include:

• Mercury 50HP three-cylinder applications

• Selected Mercury 75HP and 90HP engines

• Selected Mercury and Mariner 200HP V6 engines from approximately 1989-1991

• Additional engines whose ignition diagram specifies cover 43542

• Engine Type: Carburetted two-stroke outboard

• HP Range: Application controlled

• Year Range: Documented across approximately 1984-2005

🔌 Function

The cover shields coil terminals and ignition leads from impact, dropped fasteners and accidental contact while helping organise the high-voltage wiring.

Common signs of failure:

• Cover is cracked

• Mounting tabs are broken

• Cover contacts the coil leads

• Fasteners no longer retain the cover

• Ignition wiring is exposed

• Cover vibrates or rattles

• Heat has distorted the plastic

• Cover is missing after previous ignition service

📦 Condition

• Genuine used part

• In good serviceable condition unless otherwise stated

• Confirm mounting pattern before ordering