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    • Underwater Hardware

    Wanting to upgrade your system's propellers? On the hunt for marine underwater connectors and cables? No matter what you're looking for, Discount Inboard Marine is sure to have the best prices on underwater hardware and accessories from the top manufacturers in the industry. From marine underwater mechanical cables to drive shaft seals, you'll find a vast selection of products perfect for any repair, replacement or overhaul. Discover why experienced boaters trust Discount Inboard Marine as their go-to inboard engine parts supplier. 

    • ZINC, BARRELL, 1 SHAFT ZINC, BARRELL, 1 SHAFT
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      ZINC, BARRELL, 1 SHAFT

      Barrel collar for 1" diveshaft. Allen screw held in by washer with stainless nut cast in, copper contact for permanent ground.   Bin Number (ISBN): 101912
      $12.10
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    • SHAFT SEAL ONLY OJ 1-1/8 W/ SNAP RING
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      SHAFT SEAL ONLY OJ 1-1/8 W/ SNAP RING

      Replacement seal for GLIDE GMSS and OJ dripless systems with 1-1/8" shafts. Also fits OJ rudder ports original equipment on Mastercrafts 2003 thru 2012 (same parts as OJ2041B). Does not fit the GMSS shaft seals that have 6 screws on the end cap.
      $34.00
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    • PACKING NUT WRENCH 1-7/8" PACKING NUT WRENCH 1-7/8"
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      PACKING NUT WRENCH 1-7/8"

      Fits Stuffing Box Locking Nut, Designed For V-drives But Works Great For All 1-7/8" Locking Nuts. Tip to tip length 6-1/2"     Aprox 6-1/2" total length, handle is aprox 4" long.   Bin Number (ISBN): 10107    
      $34.95
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    • PACKING NUT WRENCH 2"
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      PACKING NUT WRENCH 2"

      Used for packing nuts that are 2" in diameter. Not all stuffing boxes are 2" some are 1-7/8". Tip to tip length is 6-1/2". Bin Number (ISBN): 10519
      $36.95
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    • 4" SINGLE TAPER COUPLER 1 BORE
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      4" SINGLE TAPER COUPLER 1 BORE

      For 1" diameter shafts that are only tapered on the prop end. This should be an interference/press fit onto the shaft. This coupler is usually used with a 1:1 ratio transmission.   Bin Number (ISBN): 33005
      $126.67
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