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    • Engine

    One of the key ways to keep your inboard ski boat in peak condition is to properly maintain the engine. This starts with having the right inboard marine engine parts at your disposal. At Discount Inboard Marine, we carry a wide selection of inboard marine engine parts, including belts, gaskets, cooling system components, and much more. Discover everything you need and more to keep your ski boat's engine purring like the day you bought it.

    • GASKET WTR PUMP CIRC Ford 351W/302
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      GASKET WTR PUMP CIRC Ford 351W/302

      Circ pump inspection plate Ford 351w/302 goes in between the plate and the pump. Marine gaskets are highly recommended over standard automotive gaskets for top efficiency, safety and performance! Minor wear, warpage and corrosion are a fact of life on...
      $8.58
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    • GASKET INTAKE MANIFOLD GM 5.7L Vortec 350/305
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      GASKET INTAKE MANIFOLD GM 5.7L Vortec 350/305

      GASKET INTAKE MANIFOLD GM 5.7/5.0L GEN 1 PLUS Vortec. * GM VORTEC ENGINES - Sold Individually, order quantity 2 Marine gaskets are highly recommended over standard automotive gaskets for top efficiency, safety and performance! Minor wear, warpage and...
      $33.20
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    • GASKET, CYLINDER HEAD GM 454 (330HP)
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      GASKET, CYLINDER HEAD GM 454 (330HP)

      SOLD INDIVIDUALLY Marine gaskets are highly recommended over standard automotive gaskets for top efficiency, safety and performance! Minor wear, warpage and corrosion are a fact of life on marine engine surfaces. You can rely on marine gaskets to stand...
      $131.40
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    • Dipstick indmar 5.7L 5.0L
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      Dipstick indmar 5.7L 5.0L

      Fits most Indmar 5.0 & 5.7 GM engines, 27" length. Supersedes Indmar Pt# S551055, generally, not always. Did not work for a 2000 Malibu Sportstar Monsoon. Fits most Monsoon, MCX, Carb 310. Will not fit some LT1 Corvette, measure the old one to be...
      $26.67
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    • Dipstick Tube Indmar 5.7 / 350 Dipstick Tube Indmar 5.7 / 350
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      Dipstick Tube Indmar 5.7 / 350

      Fits Monsoon, MCX, Carb 310hp. Goes up between the exhaust manifold and valve cover. May require tweaking for proper fit. For use with Monsoon, MCX, Carb 310hp and more. Replaces Indmar part# 55-1040. Bin Number (ISBN): 121010
      $54.65
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    • Dipstick, 5.8L Ford 351 97+
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      Dipstick, 5.8L Ford 351 97+

      Dipstick for Ford 351 97+. If you have a 1:1 Transmission, this should be the correct dipstick for your engine 30-1/2" L. Replaces Crusader R041036 and R041043 Replaces Pleasurecraft R041043A Note: Corresponding Dipstick Tube is Pt# R041031B. Bin...
      $13.80
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    • GASKET, OIL PAN SET GM 454
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      GASKET, OIL PAN SET GM 454

      GASKET, OIL PAN SET GM 454   UP TO 1990 (NOT FOR MARK V 1991 ON 1 PIECE GASKETS). Use rubber silicon on overlaps, gasket sealer or gasket glue, automotive grade (RTV sealer). Bin Number (ISBN): 1103
      $39.00
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    • GASKET CYLINDER HEAD 305/350 GM
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      GASKET CYLINDER HEAD 305/350 GM

      Sold individually, GM 5.7 head gaskets are non-directional (Not for LT1). Marine gaskets are highly recommended over standard automotive gaskets for top efficiency, safety and performance! Minor wear, warpage and corrosion are a fact of life on marine...
      $68.50
      Add to Cart
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