Mercury outboard spare part 72521 (LOCKWASHER Internal Tooth). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.
Fits 25 H.P. (1998). Select a model tag above to open the exploded diagram and confirm the position.
Mercury outboard part 72521 (LOCKWASHER Internal Tooth), documented in 101 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI, FORCE, SEARS series.
| Series | Model | Serial range | REF | Qty | Diagram |
|---|---|---|---|---|---|
| Mercury 2-STROKE-CARB | 225-3-0l | 0D280813 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 225-3-0l | 0G760300 THRU 0T408999 | 20 | 1 | View |
| Mercury 2-STROKE-CARB | 225-marathon-3-0l | 0G245605 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 225-marathon-3-0l | 0G760300 THRU 0T408999 | 20 | 1 | View |
| Mercury 2-STROKE-CARB | 225-seapro-3-0l | 0G245605 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-CARB | 225-seapro-3-0l | 0G760300 THRU 0T408999 | 20 | 1 | View |
| Mercury 2-STROKE-CARB | 25-hp-3-cyl-lightning-international | 0E268781 THRU 0E287999 | 16, 29 | 2 | View |
| Mercury 2-STROKE-CARB | 25-hp-3-cyl-lightning-international | 0E288000 THRU 0E301319 | 16, 29 | 2 | View |
| Mercury 2-STROKE-CARB | 30-2-cyl | 0T980000 THRU 0T999999 | 45 | 1 | View |
| Mercury 2-STROKE-CARB | 30-2-cyl | 1B000001 THRU 1B208759 | 45 | 1 | View |
| Mercury 2-STROKE-CARB | 30-2-cyl | 9854537 THRU 0P016999 | 45 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0G386496 THRU 0G589999 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0G590000 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0G760300 THRU 0G960499 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0G960500 THRU 0T178499 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0T178500 THRU 0T598999 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0T599000 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 0T801000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 1B504989 THRU 1B912785 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-6-cyl-3-0l | 1B912786 THRU 2B535571 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-dts-6-cyl-3-0l | 0T980000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-dts-6-cyl-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-dts-6-cyl-3-0l | 1B504989 THRU 1B964735 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-pro-xs-6-cyl-3-0l | 1B504989 THRU 1B912785 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 200-hp-pro-xs-6-cyl-3-0l | 1B912786 THRU 2B535571 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0G590000 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0G760300 THRU 0G960499 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0G960500 THRU 0T178499 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0T178500 THRU 0T598999 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0T599000 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 0T801000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-6-cyl-3-0l | 1B504989 THRU 2B535086 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-dts-6-cyl-3-0l | 0T599000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-dts-6-cyl-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-dts-6-cyl-3-0l | 1B504989 THRU 1B964735 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-pro-xs-6-cyl-3-0l | 1B104549 THRU 1B426560 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-sport-xs-6-cyl-2-5l | 1E002584 THRU 1E050825 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-sport-xs-6-cyl-3-0l | 1E000797 THRU 1E002583 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 225-hp-xs-6-cyl-2-5l | 1E002584 THRU 1B792195 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-6-cyl-3-0l | 1B528615 THRU 2B535086 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-pro-xs-6-cyl-3-0l | 1B426561 THRU 1B752546 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-pro-xs-6-cyl-3-0l | 1B752547 THRU 2B535608 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-sport-xs-6-cyl-2-5l | 1E002342 THRU 1E051823 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-sport-xs-6-cyl-2-5l | 1E051824 THRU 1E052994 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 0T651945 THRU 0T818042 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 0T818043 THRU 0T997973 | 32 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 0T997974 THRU 1E000796 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 1E000797 THRU 1E002341 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 1E002342 THRU 1E051113 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 250-hp-xs-6-cyl-3-0l | 1E053158 THRU 1E053958 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 3-0l-dsi-diesel-spark-ignition | 1E052967 THRU 1E054191 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 300-hp-xs-6-cyl-3-2l | 1E001867 THRU 1E052057 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | 300-hp-xs-6-cyl-3-2l | 1E052058 THRU 1E053987 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | jp-3-0l | 0T997974 THRU 1E003045 | 17 | 1 | View |
| Mercury 2-STROKE-DFI-OPTIMAX | jp-3-0l | 1E003046 THRU 1E052824 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 150-hp-pro-max-super-mag | 0D935000 THRU 0G610049 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 200-3-0l | 0T750164 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 200-3-0l | 0T801000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 200-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 200-3-0l | 1B504989 THRU 2B528096 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 200-efi-pro-max-super-mag | 0D935000 THRU 0G610079 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 0G129222 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 0G760300 THRU 0T408999 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 0T409000 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 0T801000 THRU 1B417701 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 1B417702 THRU 1B504988 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l | 1B504989 THRU 2B528096 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l-marathon | 0T801000 THRU 1B417701 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 225-3-0l-seapro | 0T801000 THRU 1B417701 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 0G129222 THRU 0G760299 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 0G760300 THRU 0T408999 | 20 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 0T409000 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 0T801000 THRU 1B417701 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 1B417702 THRU 1B504988 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250-3-0l | 1B504989 THRU 2B528096 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250-l-3-0l | 0T861319 THRU 1B118897 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 250xb-3-0l | 0G980600 THRU 0T800999 | 17 | 1 | View |
| Mercury 2-STROKE-EFI | 3-0l-marathon | 0T409000 THRU 0T800999 | 17 | 1 | View |
Another 21 location(s) are recorded but not listed here. Use the model links above to open the matching diagram.
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