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ELECTRICAL and TUNE UP

Your watercraft is an investment and one that you put a lot of time and money into. Keep it running its absolute best with inboard boat tune-up kits and accessories from Discount Inboard Marine. Whether you're shopping for a marine alternator, a tune-up kit or spark plugs, we have everything you need to maintain or repair your inboard ski boat. Discover why boaters around the world trust and rely on Discount Inboard Marine.

  • SWITCH OIL PRESSURE SWITCH OIL PRESSURE

    SWITCH OIL PRESSURE

    PCM Pro Tec Ignition 1989-1994, GT40 All, GM 5.7. Replaces older style switch that was smaller in size. Will not fit/replace 2007 and up PCM Digital sender or 2006 and up Indmar. MARINE PRO TEC OIL PRESSURE SWITCH. Switch goes to ground to put engine...
    $54.60
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  • WATER TEMP SENDER R020019

    WATER TEMP SENDER R020019

    Sending Unit for the ECM, most GM 2 wire snap in connector, 3/8 NPT. Indmar Pt# 556013, later model LT1 screws into the T-stat housing (instead of 1 wire sender). Bin Number (ISBN): 2004202
    $18.08
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  • ECM, MODULE GT40 5.8L ECM, MODULE GT40 5.8L

    ECM, MODULE GT40 5.8L

    NOTE: CORE RETURN REQUIRED: We will include a label to return your old ECM   These are re-programmed Ford ECMs calibrated for the PCM GT-40 MEFI engines. These are not new! But tested and re-programmed Ford units. They have a 6 Month warranty...
    $999.00
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  • TUNE UP KIT MALLORY 305/350/454/351 THRU 86 TUNE UP KIT MALLORY 305/350/454/351 THRU 86

    TUNE UP KIT MALLORY 305/350/454/351 THRU 86

    Breaker Point Standard Ignition Tune Up Kit Includes Cap, Rotor, Points and Condenser. This kit is for the points that have a strap connector. Strap Type Connector For Points, AV distributors set timing 5 degrees BTDC, MV Distributors set timing 9...
    $93.79
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  • TUNE UP KIT 302/351 86- CLIP DOWN TUNE UP KIT 302/351 86- CLIP DOWN

    TUNE UP KIT 302/351 86- CLIP DOWN

    Clip down cap thru 1986 and a few in 1987 (clips with screws at the base).   Breaker Point Standard Ignition Tune Up Kit Includes Cap, Rotor, Points and Condenser.   Bin Number (ISBN): 1301
    $73.55
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  • DELCO TIMING TOOL DELCO TIMING TOOL

    DELCO TIMING TOOL

    Used to put Delco Distributors into service mode for timing carbureted and EFI engines.   Instructions: Remove 4 pin connectors from the base of the distributor and install timing tool in its place. For carbureted engines Start the engine and then...
    $28.20
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  • STARTER RELAY STARTER RELAY

    STARTER RELAY

    Starter Relay Solenoid R130001: Test starter after installation, does not inlcude nuts/washers re use the old ones. If starter stays engaged, it is an indication of a low amperage problem. Check both ends of the battery cables and main grounds. From...
    $35.19
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  • CAP & ROTOR GM DELCO CAP & ROTOR GM DELCO

    CAP & ROTOR GM DELCO

    Cap & Rotor GM Delco Tune-Up Kit RP173081: Fits: Most Indmar EFI and carbureted after 1993, Indmar thru 2005 (Monsoon, MCX, RTP) PCM TBI thru 2001. Does NOT Fit: coil pack type ignitions like LT1  2 screws hold down the cap with a...
    $35.00
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  • SPARK PLUG KIT 302/351 (14MM) SPARK PLUG KIT 302/351 (14MM)

    SPARK PLUG KIT 302/351 (14MM)

    Spark Plug Set Ford 302 351 14mm Autolite #24 RP030002 at Discount Inboard Marine. Spark plugs Recommended by the manufacturers for optimum performance, these spark plugs are the correct heat range for your marine engine. Spark Plugs: Autolite...
    $34.25
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