Contact us!! - Click Here

Shop by Brand

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.

  • INDMAR DIGITAL OIL PRESSURE SENDER 55-1379

    INDMAR DIGITAL OIL PRESSURE SENDER 55-1379

    Indmar Digital Oil Pressure Sender. Indmar did not use until 2007 or so. The oil pressure sender is an important component of the engine, as it helps to ensure that the oil pressure is maintained at the correct level. If the oil pressure...
    $198.28
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart
  • 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
    Add to Cart