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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.

  • IGNITION SWITCH 4 POSITION/TERMINAL

    IGNITION SWITCH 4 POSITION/TERMINAL

    Polyester housing is rust and corrosion proof. 4 position "Accessory-Off-Run-Start" switch. Four 1/4" blade terminals. Supplied with brass back-up nut and knurled black plastic face nut with rubber cap to seal out splash and spray. Requires 7/8" mounting...
    $40.50
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  • FUEL PRESSURE CUTOFF SWITCH

    FUEL PRESSURE CUTOFF SWITCH

    Carbureted engines with electric fuel pump, can be used to replace 3 wire switches. (For a 3 wire switch, connect the red and orange wires together on one post and the purple wire by itself to the other). Most Indmar will need more clearance use this...
    $82.01
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  • SENSOR, OIL PRESSURE DIGITAL SENSOR, OIL PRESSURE DIGITAL

    SENSOR, OIL PRESSURE DIGITAL

    2007 PCM 5.7L SN: 480001 up, 6.0L All years and a second one was added to the Intake Manifold in 2011 Pt#R020060.3 wire snap in connector 1/8" NPT. 2012 and up 6.0L and 6.2 LSA use Item #42117. Will NOT fit Indmar engines. Bin Number...
    $86.36
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  • MODULE DELCO DISTRIBUTOR

    MODULE DELCO DISTRIBUTOR

    MODULE, DELCO DISTRIBUTOR R116014 Electronic Module used with Delco distributors. No spark is a symptom that it needs replaced. Bin Number (ISBN): 62514  
    $255.24
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  • SWITCH, OIL PRESSURE 6 PSI

    SWITCH, OIL PRESSURE 6 PSI

    Some Indmar thru 2005. Low oil pressure switch for engine alarm (Sierra Brand). 1/8th NPT thread. For a alternative switch used by Pleasurecraft Marine Click Here Bin Number (ISBN): 100615
    $22.75
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  • IGN MODULE TFI GT-40 IGN MODULE TFI GT-40

    IGN MODULE TFI GT-40

    GT40 MULTI-PORT EFI TFI MODULE   NOTE: replacement unit is only the module - you need to reuse the heat sink from your current one!! The module is attached using 2 5.5MM screws, just unscrew and replace the module from the heat sink. Direct...
    $170.00
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  • SENDER, TRANSMISSION OIL TEMP 88-5178

    SENDER, TRANSMISSION OIL TEMP 88-5178

    Transmission temp sender. Used on mostly Mastercraft and Mercruiser, fits Velvet Drive and Hurth transmissions. Goes into top of transmission in a Velvet Drive 71 or 72 C.Also used in some Malibu's for the alarm. Even on some Fords 1990 on up. Bin Number...
    $82.77
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  • ENGINE ALARM WITH AUDIBLE WARNING ENGINE ALARM WITH AUDIBLE WARNING

    ENGINE ALARM WITH AUDIBLE WARNING

    Audible warning system for engine temperature and oil pressure. Keep your engine safe this summer. Works on Ford or GM older applications without alarms, EFI, or Carburated.  Oil pressure switch set a 6psi and temp switch set at 200...
    $73.18
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  • WATER TEMP SENDING UNIT

    WATER TEMP SENDING UNIT

    PCM 302, GT40 in circulation pump, Some Mercruiser (pt # 806490T), Early LT1 in the T-stat housing then moved to cylinder head around 95 (tapered threads are aprox. 3/4" in diameter). Also used in some PCM GM engines around 2002-05 located in the T-stat...
    $54.29
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