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Parts Selection Guide

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Mercruiser Tune Up Kit

Mercruiser Ignition Coils

Mercruiser Spark Plug Wires

Mercruiser Spark Plugs

Mercruiser Ignition Modules

Mercruiser Electronic Conversion Kits

Mercruiser Distributors

      Mercruiser Ignition System

      • Sierra 18-5442 Ignition Coil Replaces 806673T1
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        Sierra 18-5442 Ignition Coil Replaces 806673T1

        $154.49
        $107.99

        Sierra 18-5442 Mercruiser Ignition Coil Sierra high-quality engine parts are designed to meet OEM specifications, backed by Sierra's unmatched manufacturer's warranty. Fits FM V-8 engines with Delco HEI Ignition, except MPI engines with ECM...

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      • CDI 631-0011 Spark Plug Wires
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        CDI 631-0011 Spark Plug Wires

        $144.49
        $102.49

        CDI 631-0011 Spark Plug Wire Set 6 Cyl) Conventional Ignition with Delco Breaker Point Distributor Mercury Marine 470, 485, 488, 3.7L Aluminum Block Engines Fits: Mercruiser 2001-2017 350 MAG MPI ALPHA/BRAVO 2001-2017 350 MAG MPI ALPHA/BRAVO...

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      • Mercury - Mercruiser 898253T27 Ignition Coil
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        Mercury - Mercruiser 898253T27 Ignition Coil

        $202.49
        $175.99

        Mercury - Mercruiser 898253T27 Ignition Coil Genuine OEM Mercury - Mercruiser ignition coil. Fits: 4 Cyl. GM V‑6 & V‑8 engines w/ Delco HEI ignition Does not include any brackets or bolts

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      • Sierra 18-5243 Distributor Cap
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        Sierra 18-5243 Distributor Cap

        $90.99
        $68.99

        Sierra 18-5243 Distributor Cap Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drive and Volvo Penta engines. For late model v-6 (4.3L Alpha/Bravo) Interchangeable...

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      • Sierra 18-5312-1 Distributor
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        Sierra 18-5312-1 Distributor

        $454.49
        $317.99

        Sierra 18-5312-1 Distributor - Ford V8 For: Most Ford 351 CID V-8 engines Rotation: Conventional Stabilized points eliminate point float and bounce High dielectric condenser with brass case eliminates corrosion Mylar insulation provides greater...

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      • Sierra 18-5475 Distributor
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        Sierra 18-5475 Distributor

        $662.49
        $463.99

        Sierra 18-5475 Delco HEI Distributor for Mercruiser Stern Drives Sierra Marine Distributors are designed to be reliable for many years. Featuring a sleek, robust design and crafted with the highest quality materials and latest technology. Aluminum...

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      • Sierra 18-8838-1 Spark Plug Wire Set
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        Sierra 18-8838-1 Spark Plug Wire Set

        $548.99
        $416.99

        Sierra 18-8838-1 Spark Plug Wire Set for Indmar Inboards & Mercruiser Drives Sierra replacement spark plug wire set for Mercruiser Stern Drives and Indmar Inboards. Specifications: Ignition Type: Distributorless Cyl.: 8 Spark Plug Wire...

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      • CDI 631-0023 Spark Plug Wires
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        CDI 631-0023 Spark Plug Wires

        $56.99
        $40.49

        CDI 631-0023 Spark Plug Wires The CDI 631-0023 is a 5 pack of Spark Plug Wires designed for Mercruiser, OMC, and Marine Power engines. (4 Cyl) Mercruiser 3.0 LX (1991-97) Fits: Marine Power 1993-2017 3.0L Mercruiser 1991-1994 3.0L...

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      • CDI E66-0006 Tune Up Kit
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        CDI E66-0006 Tune Up Kit

        $122.49
        $86.99

        CDI E66-0006 Tune Up Kit The CDI E66-0006 is a Tune Up Kit designed for use with Mercruiser and Volvo Engines. (V8) Delco HVS Electronic Ignition (2003 & Up) Alpha/Bravo 350 Mag. 5.0L, 5.7L & 6.2L MPI engines w/ECM 555...

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      • NGK BPR5EFVX Spark Plug
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        NGK BPR5EFVX Spark Plug

        $9.49
        $6.99

        NGK BPR5EFVX Spark Plug 7549 NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six...

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      • Sierra 18-5266 Tune Up Kit
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        Sierra 18-5266 Tune Up Kit

        $125.49
        $87.99

        Sierra 18-5266 Tune Up Kit Fits Flame Thrower Distributors: Distributor 18-5481: For V8 351 Windsor Distributor 18-5482: For V8 351 Cleveland 351M, 400, 429 and 460 Engines Distributor 18-5483: For Chevrolet Small and Big Block w/Standard Deck...

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      • Sierra 18-5420 Rotor Replaces 65864
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        Sierra 18-5420 Rotor Replaces 65864

        $14.49
        $10.99

        Sierra 18-5420 Rotor Sierra high-quality engine parts are designed to meet OEM specifications. Fits Ford & GM V-8 engines with Autolite & Mercury Ignition Interchangeable with: Crusader 3000122 GLM 71030 Mercruiser Stern...

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      Mercruiser OEM Engine Parts Finder

      Mercruiser Ignition Tune Up

      The condition of your Mercruiser ignition system is critical to its performance. Over time your outboard’s electrical components can be effected by wear, corrosion or system leaks. A faulty ignition can scuttle a planned outing on the water, and possibly require an expensive repair. When your Mercruiser is hard to start or will not start, Wholesale Marine offers these suggestions for troubleshooting your ignition system. This procedure enables owners to fault trace if it requires a simple fix or a significant repair.

      When it’s Time to Tune Up Your Mercruiser Ignition System

      1)  First, check the obvious. Is there plenty of gas in the tank? Are all the fluids at the correct levels? Lastly, make sure all the wires are corrosion-free and connected properly. Try to start the engine. A quick fix may be all that it required.

      2)  If there is no start from the engine, a faulty or worn spark plug may be the culprit. Pull the plug and ensure that it is clean. If it is wet, this may be an indication of a bigger issue. If the plug is dry but discolored, it may have been the wrong type of plug for your motor. Check your owner’s manual and install the right plug.

      3)  If the plug is working disconnect the black/yellow wire from the engine to check the kill circuit. If the engine still does not start, the white/green and green/white stator wires need to be replaced. This will impact the engine starting cylinder. If the engine still will not start, the stator is bad and requires replacement.

      When it is time to troubleshoot or tune-up your Mercruiser ignition system, know that Wholesale Marine has everything you need. We offer a competitive pricing guarantee and most items flat rate ship the same day. Returns are stress free and we welcome your questions. Make us your one-stop boating shop! Join our Loyalty Program and use the points toward any future purchases. We’re here to take your call Monday through Friday from 9:00 AM until 6:00 PM EST at (877) 388-2628.