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      • Sierra 18-5273 Tune Up Kit Replaces 805759Q3
        $52.49
        $36.99

        Sierra 18-5273 MerCruiser Tune Up Kit for V8 Thunderbolt HEI Ignitions  Sierra high-quality engine parts are designed to meet OEM specifications. Fits GM V-8 engines with Thunderbolt IV & V HEI ignitions. Voltage Regulator 18-5710 Kit...

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      • Sierra 18-5268 Tune Up Kit
        $45.49
        $31.99

        Sierra 18-5268 Tune Up Kit  - Delco In-line 4 Single Point For marine engines with Delco In-Line 4 - Single Point distributors Used on Mercruiser, OMC, Crusader and Chris Craft Marine engines. Kit Includes: Contact Set 18-5311 Condenser...

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      • Sierra 18-5403 Rotor Replaces 392-9089T
        $9.99
        $7.49

        Sierra 18-5403 Rotor Replaces 392-9089T Sierra replacement rotor for Prestolite 7013 and Ford & GM 6 & 8 Cylinder engines with Prestolite Conventional Ignition. Use With: 18-5299 Electronic Conversion Kit Interchangeable...

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      • Sierra 18-5352 Distributor Cap Replaces 392-9766Q1
        $34.99
        $24.49

        Sierra 18-5352 Distributor Cap Replaces 392-9766Q1 Features: For Prestolite Fits Ford & GM V-8 Engines with Prestolite Conventional Ignition Replaces: Volvo - 841070, 3853815 Johnson/Evinrude - 984401 OMC - 0984401,3853815 MerCrusier -...

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      • Sierra 18-5275 Tune Up Kit
        $62.99
        $43.99

        Tune Up Kit - Prestolite V8 Single Point Screw Cap For marine V8 engines that use a Prestolite Distributor with a Single Point, Screw Down Cap. Used on Christ Craft, Crusader, Indmar, Pleasurecraft, Mercruiser and OMC marine engines. Kit Includes: ...

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      • Sierra 18-5280 Tune Up Kit Replaces 811635Q2
        $24.99
        $17.49

        Sierra 18-5280 Tune Up Kit for MerCruiser and OMC Stern Drives Sierra high-quality replacement parts are designed to meet OEM specifications.  Features: In-Line 4 Delco EST Use with: Delco HEI Distributor (GM 4 Cyl) 18-5475 Kit...

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      • Sierra 18-5281 Tune Up Kit Replaces 808483Q2
        $54.49
        $37.99

        Sierra 18-5281 Tune Up Kit Delco Est V8 Used on MerCruiser, Indmar and Pleasurecraft Marine engines. GM V-8 Delco EST Fits 1996-2005 Indmar Monsoon, MCX, RPT & Hammerhead Engines Includes: 18-5354 Distributor Cap 18-5405...

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      • Sierra 18-5354 Distributor Cap
        $38.49
        $26.99

        Sierra 18-5354 Distributor Cap - Delco V8 Ignitions Sierra 18-5354 Distributor Cap fits new GM style "module in cap" distributors with V-8 applications except MPI engines with ECM 555. Use with: 18-5405 Rotor Interchangeable...

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      • Sierra 18-5247 Tune Up Kit Replaces 8M0061335
        $117.49
        $82.49

        Sierra 18-5247 Tune Up Kit for MerCruiser V8 Stern Drives Sierra high-quality engine parts are designed to meet OEM specifications. For: Late model V-8 (Alpha/Bravo 350 Mag. 5.0L, 5.7L & 6.2L MPI engines w/ ECM 555 s/n 0M300000 & Up) Delco...

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      • Sierra 18-5250 Tune Up Kit Replaces 34235Q1
        $28.49
        $19.99

        Tune Up Kit - Delco 4 & 6 Cylinder Kit Includes: Sie-18-53111 Contact Set Sie-18-5345 Condenser Sie-18-5418 Rotor   Replaces: OMC - 0176371,5006182 Mallory - 9-29300 Johnson/Evinrude - 172527 Mercruiser - 34235T1, 34235Q1 GLM -...

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      • Sierra 18-5276 Tune Up Kit
        $67.49
        $47.49

        Sierra 18-5276 Tune Up Kit - Prestolite V6 Single Point Screw Cap Sierra tune up kit for Prestolite V-6 - Single Point - Screw Cap engines. Kit Includes: (1) 18-5303 Contact Set (1) 18-5347 Condenser (1) 18-5353 Distributor Cap (1) 18-5403...

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      • Sierra Marine Distributor Cap - 18-5385
        $22.99
        $15.99

        Sierra 18-5385 Distributor Cap - Delco 4 Cyl Ignitions Sierra distributor caps are designed to meet OEM specifications. For GM 4 cyl marine engines using a Delco conventional ignition distributor. For use on Mercruiser and OMC Stern Drives...

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      • Sierra 18-5418 Rotor Replaces 8M6001251
        $4.99
        $3.99

        Sierra 18-5418 Rotor for Mercruiser, OMC Stern Drives Sierra high-quality engine parts are designed to meet OEM specifications. Fits GM 4 & 6 Cyl. engines with Delco Conventional Ignition. Interchangeable with: Chris-Craft 16...

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      • Sierra 18-5406 Rotor Replaces 8M6001254
        $7.49
        $5.99

        Sierra 18-5406 Rotor - Delco 3.0L LX Ignitions Sierra high-quality engine parts are designed to meet OEM specifications. Use With 18-5361 Distributor Cap. Fits GM 4 Cylinder engines with Delco EST Ignition Interchangeable...

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      Mercruiser OEM Engine Parts Finder

      Mercruiser Tune Up Kits

      We carry a variety of Mercruiser products for your next tune up. Shop our Mercruiser tune up kits, distributor caps, and rotors. If you need a replacement part, we carry replacements for Mercruiser distributor caps, rotors, rotor assemblies, condensers, and contact sets. Exchanging your worn parts for new ones will give your boat a smoother and more efficient ride.