Mercury outboard spare part 831985 (O-RING (.468 x .078)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 135 HP V6 CYL (2.5L), 150 HP V6 CYL (2.5L), 175 HP V6 CYL (2.5L), 115 HP 3 CYL (1.5L), 200 HP 6 CYL (3.0L), 110 Jet (2.5L), 175 HP Pro XS 6 CYL (2.5L), 150 HP Pro XS 6 CYL (2.5L), 115 HP Pro XS 3 CYL (1.5L), 115 HP V6 CYL (2.5L), 125 HP 3 CYL (1.5L), 2.5XS (2.5L). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 831985 (O-RING (.468 x .078)), documented in 111 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI, 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB110-jet-2-5l1B690542 THRU 1B974227281View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-3-cyl-1-5l0T801000 THRU 1B226999151View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-3-cyl-1-5l1B227000 THRU 1B417701151View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-3-cyl-1-5l1B417702 THRU 1B736885151View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-3-cyl-1-5l1B736885 THRU 2B018763151View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-pro-xs-3-cyl-1-5l1B751825 THRU 2B123429151View
Mercury 2-STROKE-DFI-OPTIMAX115-hp-v6-cyl-2-5l0G960500 THRU 0T178499281View
Mercury 2-STROKE-DFI-OPTIMAX125-hp-3-cyl-1-5l1B736885 THRU 2B112787151View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l0G590000 THRU 0G76029924, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l0G760300 THRU 0G96049924, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l0G960500 THRU 0T17849924, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l0T178500 THRU 0T80099924, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l0T801000 THRU 1B22699924, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l1B227000 THRU 1B41770124, 281View
Mercury 2-STROKE-DFI-OPTIMAX135-hp-v6-cyl-2-5l1B417702 THRU 1B73749524, 281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-pro-xs-6-cyl-2-5l1B690542 THRU 2B535572281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l0G590000 THRU 0G76029924, 281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l0G760300 THRU 0G960499281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l0G960500 THRU 0T178499281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l0T178500 THRU 0T800999281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l0T801000 THRU 1B226999281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l1B227000 THRU 1B417701281View
Mercury 2-STROKE-DFI-OPTIMAX150-hp-v6-cyl-2-5l1B417702 THRU 1B580029281View
Mercury 2-STROKE-DFI-OPTIMAX175-hp-pro-xs-6-cyl-2-5l1B516339 THRU 2B53562428, 91View
Mercury 2-STROKE-DFI-OPTIMAX175-hp-v6-cyl-2-5l0T178500 THRU 0T800999281View
Mercury 2-STROKE-DFI-OPTIMAX175-hp-v6-cyl-2-5l0T801000 THRU 1B22699928, 91View
Mercury 2-STROKE-DFI-OPTIMAX175-hp-v6-cyl-2-5l1B227000 THRU 1B41770128, 91View
Mercury 2-STROKE-DFI-OPTIMAX175-hp-v6-cyl-2-5l1B417702 THRU 1B508457281View
Mercury 2-STROKE-DFI-OPTIMAX2-5xs-2-5l0T997974 THRU 1E000796171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G590000 THRU 0G760299171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G760300 THRU 0G960499171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0G960500 THRU 0T178499171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T178500 THRU 0T598999221View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T599000 THRU 0T800999221View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l0T801000 THRU 1B417701171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B417702 THRU 1B504988171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B504989 THRU 1B91278517, 221View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-6-cyl-3-0l1B912786 THRU 2B535571171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l0T980000 THRU 1B417701171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B417702 THRU 1B504988171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-dts-6-cyl-3-0l1B504989 THRU 1B964735171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B504989 THRU 1B91278517, 221View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-pro-xs-6-cyl-3-0l1B912786 THRU 2B535571171View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l0T235000 THRU 0T818180241View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l0T818181 THRU 1E000796291View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l1E000797 THRU 1E002110291View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-6-cyl-2-5l-ros1E050852 THRU 1E05387628, 91View
Mercury 2-STROKE-DFI-OPTIMAX200-hp-xs-sst-6-cyl-2-5l1E050629 THRU 1E05387528, 91View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G590000 THRU 0G760299171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G760300 THRU 0G960499171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0G960500 THRU 0T178499171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T178500 THRU 0T598999221View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T599000 THRU 0T800999221View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l0T801000 THRU 1B417701171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B417702 THRU 1B504988171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-6-cyl-3-0l1B504989 THRU 2B53508617, 221View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l0T599000 THRU 1B417701171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B417702 THRU 1B504988171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-dts-6-cyl-3-0l1B504989 THRU 1B964735171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-pro-xs-6-cyl-3-0l1B104549 THRU 1B426560241View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-2-5l1E002584 THRU 1E05082517, 231View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-sport-xs-6-cyl-3-0l1E000797 THRU 1E002583171View
Mercury 2-STROKE-DFI-OPTIMAX225-hp-xs-6-cyl-2-5l1E002584 THRU 1B79219517, 231View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-6-cyl-3-0l1B528615 THRU 2B53508617, 221View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B426561 THRU 1B752546221View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-pro-xs-6-cyl-3-0l1B752547 THRU 2B535608171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E002342 THRU 1E051823171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-sport-xs-6-cyl-2-5l1E051824 THRU 1E052994171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T651945 THRU 0T818042171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T818043 THRU 0T997973171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l0T997974 THRU 1E000796171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E000797 THRU 1E002341171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E002342 THRU 1E051113171View
Mercury 2-STROKE-DFI-OPTIMAX250-hp-xs-6-cyl-3-0l1E053158 THRU 1E053958171View
Mercury 2-STROKE-DFI-OPTIMAX3-0l-dsi-diesel-spark-ignition1E052967 THRU 1E054191171View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E001867 THRU 1E052057171View
Mercury 2-STROKE-DFI-OPTIMAX300-hp-xs-6-cyl-3-2l1E052058 THRU 1E053987171View
Mercury 2-STROKE-DFI-OPTIMAX75-hp-3-cyl-1-5l0T980000 THRU 1B226999151View
Mercury 2-STROKE-DFI-OPTIMAX75-hp-3-cyl-1-5l1B227000 THRU 1B417701151View
Mercury 2-STROKE-DFI-OPTIMAX75-hp-3-cyl-1-5l1B417702 THRU 1B736885151View

Another 31 location(s) are recorded but not listed here. Use the model links above to open the matching diagram.

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Appears in diagrams of these models

  • 135 HP V6 CYL (2.5L)
  • 150 HP V6 CYL (2.5L)
  • 175 HP V6 CYL (2.5L)
  • 115 HP 3 CYL (1.5L)
  • 200 HP 6 CYL (3.0L)
  • 110 Jet (2.5L)
  • 175 HP Pro XS 6 CYL (2.5L)
  • 150 HP Pro XS 6 CYL (2.5L)
  • 115 HP Pro XS 3 CYL (1.5L)
  • 115 HP V6 CYL (2.5L)
  • 125 HP 3 CYL (1.5L)
  • 2.5XS (2.5L)