Contact us!! Cick here hurricane update/delay notice

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.

  • IGNITION WIRE SET (305/350)--NLA- USE RA121022

    IGNITION WIRE SET (305/350)--NLA- USE RA121022

    NLA- USE PART RA121022 *OEM PCM, Prestolite Or Mallory Distributors* Black 45 Degree Plug and 90 cap boots SPARK PLUG WIRES Manufacturers choice for premium performance. Supression core marine 7mm silicon wire sets. Includes coil wire...
    $45.56
  • TCP SENSOR 5.7L & 6.0L DBW 2007 UP R119005A TCP SENSOR 5.7L & 6.0L DBW 2007 UP R119005A

    TCP SENSOR 5.7L & 6.0L DBW 2007 UP R119005A

    This replacement Thottle Control Position sensor requires engine recalibration by Diacom software. Replaces PCM R119005.*If you presently have the R119005A TCP on the engine (aprox 2013 up) no calibration is required. Click on photo for...
    $301.75
    Add to Cart
  • IGNITION WIRE SET 8MM GM/FORD

    IGNITION WIRE SET 8MM GM/FORD

    * GM 350, 351, 302, 5.8, 5.7, 5.0 * OEM PCM, Fits Prestolite or Mallory* 90 Degree Plug/cap Boots* Original equipment PCM around 1990 up* 8 mm Low resistance/High Output Premium Supression Core.   Bin Number (ISBN): 41115   Fits...
    $66.50
    Add to Cart
  • CRANK SENSOR 5.0/5.7 MPI R020038 CRANK SENSOR 5.0/5.7 MPI R020038

    CRANK SENSOR 5.0/5.7 MPI R020038

    PCM 2002 UP 5.7/5.0 MPI, FITS INTO TIMING COVER. NOT FOR LT1/LTR OR 6.0L. Indmar MCX and 2006 and up Indmar 5.7L engines with HVS (flat cap) distributor. Indmar part number 556293. Bin Number (ISBN): 91511
    $95.00
    Add to Cart
  • MAP SENSOR GM TBI SOME MPI R020017 MAP SENSOR GM TBI SOME MPI R020017

    MAP SENSOR GM TBI SOME MPI R020017

    GM Throttle Body Injection Manifold Absolute Pressure sensor 94 and up. Also used on PCM Pro Tec Injection (BARO) and (MAP). Also fits Indmar LT1 and Monsoon 1 (96-97) Pt # 556006. Bin Number (ISBN): 81310
    $110.45
    Add to Cart
  • IDLE AIR CONTROLLER TBI

    IDLE AIR CONTROLLER TBI

    Throttle Body Injection IAC, GM 94 and up. Indmar old PT # 55-6085 now superceeded by S556094. Also fits Indmar LT1 Corvette. Bin Number (ISBN): 81210
    $65.25
    Add to Cart
  • ADAPTER, FLAT RSPNS KNOCK SENSOR ADAPTER, FLAT RSPNS KNOCK SENSOR

    ADAPTER, FLAT RSPNS KNOCK SENSOR

    Adapter for the Flat Response Knock sensor. Indmar 2006 (original brass) up 5.7L and PCM 2008 up 5.7L, 5.0L. Engines with this style sensor will have one on each side of the block located in the block drain. Bin Number (ISBN): 92914  
    $12.00
    Add to Cart
  • Sensor, Knock (Flat Response) Sensor, Knock (Flat Response)

    Sensor, Knock (Flat Response)

    PCM usually 2008 & UP, GM 5.0L, 5.7L & 6.0L. There are some exceptions where the old style knock sensor has been used on both sides of the block (Item # 1249) after 2008. Bin Number (ISBN): 110312
    $20.75
    Add to Cart
  • SPARK PLUG WIRE SET GT-40 EFI

    SPARK PLUG WIRE SET GT-40 EFI

    PCM 351 GT40 MPI EFI, Original Equipment.  Manufacturers' choice for premium performance. Suppression Core marine 8mm silicon wire sets. Includes coil wire. The OEM red wires are no longer available and the color currently being used by PCM is gray...
    $69.95
    Add to Cart
  • STARTER KIT, BOTTOM MOUNT GM 5.7 STARTER KIT, BOTTOM MOUNT GM 5.7

    STARTER KIT, BOTTOM MOUNT GM 5.7

    Arco Marine Starter Bottom Mount GM PCM Indmar RF122015: Fits: PCM, Indmar, Mercruiser. 5.7, 5.0, 7.4, 305, 350, 454. This kit includes new mounting bolts and metric nuts. CE Certified and in compliance with: USCG Title33 CFR 183.41, SAE J1171, ISO 8846...
    $202.65
    Add to Cart