Mercruiser Ignition System

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Parts Selection Guide

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      • Mercury - Mercruiser 8M0215004 Rotor
        $23.39
        $19.49

        Mercury - Mercruiser 8M0215004 Rotor Genuine OEM Mercury-Mercruiser part. Replacement rotor for Mercruiser stern drives. Fits: 2001 and newer MCM/MIE 4.3L, 5.0L, 5.7L & 6.2L MPI engines with ECM 555 (s/n 0M300000 and...

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      • Sierra 18-5484-1 Electronic Distributor
        $776.99
        $543.99

        Sierra 18-5484-1 Electronic Distributor Includes steel gear, which is compatible with flat tappet or hydraulic roller cams Designed as a plug-in replacement for GM-style fuel injection system distributors and late model GM EST Distributors...

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      • CDI 631-0008 Mercruiser Spark Plug Wires
        $77.99
        $55.49

        CDI 631-0008 Mercruiser Spark Plug Wires - 8 QTY This is a set of CDI 631-0008 Mercruiser Spark Plug Wires for 8Cyl Thunderbolt. Fits: Mercruiser 1983-1984 198, 5.0L GM 1985-1995 200, 5.0L GM 1985-1986 228 1981-1995 230, 5.0L/LX MIE 1987-1995...

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      • Sierra 18-0874-9 Distributor Gasket (2-Pack)
        $3.99
        $2.99

        Sierra 18-0874-9 Distributor Gasket (2-Pack)  Fits: GM V6 and V8 Replaces: Crusader RM0123 Mercruiser 27-344863 Marine Power 288426 OMC 312780 Pleasurecraft Marine RM0123 Sierra 18-0874 Volvo Penta 3852109

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      • Sierra 18-5294 Electronic Conversion Kit
        $254.99
        $178.49

        Sierra 18-5294 Electronic Conversion Kit - 6 Cyl Delco Distributors Sierra high-quality electronic conversion kit for Mercruiser Stern Drives. Fits 6Cyl, Delco Distributors Key Features: Replaces point & condensers for true solid state...

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      • Sierra 18-5397 Distributor Cap
        $66.49
        $46.49

        Sierra 18-5397 OMC Distributor Cap Sierra high-quality engine parts are designed to meet OEM specifications.  Fits Ford 2.3L with Mallory Distributor 1987-90 Interchangeable with: Mallory 9-29418 OMC Stern...

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      • NGK B8S Spark Plug
        $3.99
        $2.99

        NGK B8S Spark Plug NGK Standard Spark Plugs are proven technology that offer reliable performance. Standard spark plugs are treated with corrosion-resistant plating to ensure ease of installation and removal. The solid copper core offers superior heat...

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      • Mercury 8M0129146 AC Spark Plug 41-983
        $23.49
        $20.49

        Mercury 8M0129146 AC Spark Plug 41-983 Mercury OEM replacement ACDelco Platinum Spark Plug. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. Features: One-piece,...

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      • NGK B7S Spark Plug
        $3.99
        $2.99

        NGK B7S Spark Plug NGK Standard Spark Plugs are proven technology that offer reliable performance. Standard spark plugs are treated with corrosion-resistant plating to ensure ease of installation and removal. The solid copper core offers superior heat...

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      • Sierra 18-5315-1 Distributor
        $658.99
        $460.99

        Sierra 18-5315-1 Distributor for GM 4 Cyl. Engines For most GM 4 cylinder engines (120 & 140 HP) Stabilized points eliminate point float and bounce High dielectric condenser with brass case eliminates corrosion Mylar insulation provides greater...

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      • CDI E18-0008 Ignition Coil
        $71.49
        $50.99

        CDI E18-0008 Ignition Coil The CDI E18-0008 is an ignition coil designed for Mercruiser Engines V or thunderbolt IV. Fits: Mercruiser 1975-2017 Gen+ 1987 175 (262c.i.) 1987 175 2 BBL. GM 1985-1993 175, 185, 4.3 (262c.i.) 1985-1987 185 (2bbl)...

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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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      • Mercruiser 8M6001106 Distributor Cap
        $107.99
        $89.99

        Mercruiser 8M0215003 Distributor Cap Genuine OEM Mercruiser part. Fits 2001‑2015 MCM/MIE 5.0L, 5.7L & 6.2L MPI engines with ECM 555 (s/n 0M300000 thri 2A455878) Application: 357 HRZ BOBTAIL RM - [1G300000 THRU 1G399999] 383 MAG...

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      • CLEARANCE
        Sierra 18-7648 Ignition Coil
        $135.49
        $90.99

        Sierra 18-7648 Ignition Coil Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Volvo Penta engines. Fits MCM 496 Mag & HO (s/n 0M025000-0M376087) & MIE 8.1L & HO (s/n 0M026000...

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      • EMP 300-03085 MerCruiser Tune Up Kit
        $42.23
        $35.19

        EMP 300-03085 MerCruiser Tune Up Kit with Cap This tune up kit comes with a cap and is intended for use with MerCruiser engines. This tune up kit meets all OEM requirements. Tune Up Kit Application: For 1981-2001 V8 180-800HP GM & MIE engines with...

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      • Mercruiser 8M0178581  Ignition Coil
        $220.99
        $191.99

        Mercruiser 8M0178581 Ignition Coil Genuine OEM Mercury-Mercruiser part. Fits: MCM 496 Mag & HO (s/n 0M376088 thru 1A352731) and MIE 8.1L & HO (s/n 0M315053 thru 1A380318). Supersedes: 889925 Special Order Item.

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      • Sierra 18-5347 Condenser Replaces 8M6001249
        $8.49
        $6.49

        Sierra 18-5347 Condenser The Sierra 18-5347 Condenser is a replacement part for Ford & GM 4, 6, & 8 cylinder engines with Prestolite conventional ignition. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements...

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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.