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High precision O-ring for cooling and fuel systems of Mercury, Mariner and Mercruiser engines. Ensures tightness and durability in high-performance marine applications.
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O-RING 25-20863 REC25-80863
REC25-80863
€2.99
Tax included
High precision O-ring for cooling and fuel systems of Mercury, Mariner and Mercruiser engines. Ensures tightness and durability in high-performance marine applications.
Description
Function and technical context
The 25-20863 O-ring is a precision sealing component designed to ensure tightness in critical circuits of Mercury, Mariner and MerCruiser marine engines. This elastomeric seal acts as a waterproof barrier in cooling and fuel supply systems, preventing leaks that could compromise the functionality of the propellant. Its degradation or wear allows the entry of water or loss of pressure in the circuit, which causes engine overheating, internal corrosion and reduced navigation performance.
When to replace this part?
O-rings should be replaced when visible leaks around connections, dripping at sealing points, or loss of pressure in associated systems are detected. It is recommended to preventively change all O-rings during major engine overhauls or interventions in cooling and fuel systems, since their cost is reduced compared to repairs resulting from undetected leaks. Early replacement during seasonal maintenance prevents costly breakdowns during navigation and prolongs the life of adjacent components.
Compatible MerCruiser and Mercury Mariner Engines
| Marca | Modelo | Rango de serie |
|---|---|---|
| MerCruiser | 120/140 | 4893635 THRU 6225576 |
| MerCruiser | 165 | 4890460 & Up |
| MerCruiser | 225-S | 3856268 THRU 4200499 |
| MerCruiser | 228 | 4898730 THRU 6225576 |
| MerCruiser | 233 | 4200500 & Up |
| MerCruiser | 260 | 4898730 THRU 6225576 |
| MerCruiser | 470 | 4208730 THRU 4893934 / 4893835 THRU 6225576 |
| MerCruiser | 485 | 4893835 & Up |
| MerCruiser | 898 | 4898730 THRU 6225576 |
| Mercury Mariner | 3.5 HP | 6202173 THRU 0A809600 |
| Mercury Mariner | 3.6 HP | 5404657 THRU 0A809600 / 7145388 THRU 0A809600 / 9252831 THRU 0A809600 |
| Mercury Mariner | 4 HP 1 CYL (PRODUCT OF USA) | 5595532 THRU 0A809600 / 7143688 THRU 0A809600 / 8068065 THRU 0A809600 / 9258281 THRU 0A809600 |
| Mercury Mariner | 4.5 HP 1 CYL | 5595532 THRU 0A809600 / 7147238 THRU 0A809600 / 8068065 THRU 0A809600 / 9258281 THRU 0A809600 |
| Mercury Mariner | 7.5, 75 HP | 5206550 THRU 0A197113 / 7125388 THRU 0A197113 / 8057545 THRU 0A197113 / 9217756 THRU 0A197113 |
| Mercury Mariner | 9.8 HP (Merc 110) | 5206550 THRU 0A197113 / 7127388 THRU 0A197113 / 8057545 THRU 0A197113 / 9217756 THRU 0A197113 |
| Mercury Mariner | 25 HP Carb | 0P153500 THRU 0P388282 / 0T409000 THRU 1B344298 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 0G760300 THRU 0T408999 / 0P017000 THRU 0P153499 |
| Mercury Mariner | 30 2 CYL | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9854537 THRU 0P016999 / 0G055314 THRU 0G760299 / 0P325500 THRU 0P391625 / 0T980000 THRU 0T999999 / 1B000001 THRU 1B208759 |
| Mercury Mariner | 30 HP Carb 3 CYL | 0P153500 THRU 0P400999 / 0T409000 THRU 1B226999 / 0G760300 THRU 0T408999 / 0P017000 THRU 0P153499 |
| Mercury Mariner | 30 HP EFI 3 CYL | 0T409000 THRU 1B226999 / 0P153500 THRU 0P400999 / 1C109093 THRU 1C456299 / 1C456300 & Up |
| Mercury Mariner | 30 JET 3 CYL | 0G760300 THRU 0T408999 / 0P017000 THRU 0P153499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 |
| Mercury Mariner | 35 HP EFI Jet 4 CYL | 1C453840 & Up |
| Mercury Mariner | 40 2 CYL | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9854537 THRU 0P016999 / 0G055314 THRU 0G760299 / 0T980000 THRU 0T999999 / 1B000001 THRU 1B208759 / 0P325500 THRU 0P391625 |
| Mercury Mariner | 40 3 CYL | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 0T980000 THRU 1B209735 / 0P325500 THRU 0P325907 |
| Mercury Mariner | 40 H.P. (1998) | 0E288000 THRU 0E344999 |
| Mercury Mariner | 40 H.P. (1999) | 0E345000 THRU 0E369299 |
| Mercury Mariner | 40 HP Carb | 9944807 THRU 0P016999 / 0G231123 THRU 0G760299 / 0G760300 THRU 0T408999 / 0P017000 THRU 0P153499 |
| Mercury Mariner | 40 HP Carb 3 CYL | 0P153500 THRU 0P400999 / 0T409000 THRU 1B226999 / 1B227000 THRU 1B344306 / 0P401000 & Up / 1C000001 THRU 1C018825 / 1C018826 THRU 1C739634 |
| Mercury Mariner | 40 HP Carb 4 CYL | 0P094500 THRU 0P206999 / 0T178500 THRU 0T598999 |
| Mercury Mariner | 40 HP Carb ITALY | 0G760300 THRU 0T178499 / 0P017000 THRU 0P094499 |
| Mercury Mariner | 40 HP EFI 3 CYL | 0T409000 THRU 1B226999 / 0P153500 THRU 0P400999 / 1B227000 THRU 1B355027 / 0P401000 THRU 0P515896 / 1C000001 THRU 1C043416 / 1C043417 THRU 1C456299 / 1C456300 & Up |
| Mercury Mariner | 40 HP EFI 4 CYL | 0P153500 THRU 0P400999 / 0T409000 THRU 1B355222 / 1C000001 THRU 1C050251 / 0P401000 THRU 0P515896 / 1C050252 THRU 1C453839 / 0P515897 THRU 0P580772 / 1C453840 & Up |
| Mercury Mariner | 40 HP EFI Jet 4 CYL | 1C051324 THRU 1C453839 / 1C453840 & Up |
| Mercury Mariner | 40 HP EFI SeaPro 4 CYL | 1C453840 & Up |
| Mercury Mariner | 40 JET | 0P094500 THRU 0P325499 / 0T178500 THRU 0T979999 / 0T980000 THRU 2B535834 / 0P325500 THRU 0P392690 |
| Mercury Mariner | 45 HP Carb BODENSEE | 0G760300 THRU 0T178499 / 0P017000 THRU 0P094499 / 9944807 THRU 0P016999 / 0G231123 THRU 0G760299 |
| Mercury Mariner | 45 JET | 0G760300 THRU 0T129554 / 0P017000 THRU 0P094499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 9683055 THRU 9885344 / 0D000750 THRU 0G290584 / 9885385 THRU 9973099 / 0G290585 THRU 0G589999 |
| Mercury Mariner | 50 3 CYL | 1B000001 & Up / 0P325500 & Up / 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 9683055 THRU 9885344 / 0D000750 THRU 0G290584 / 9885345 THRU 9973099 / 0G290585 THRU 0G589999 |
| Mercury Mariner | 50 H.P. (1998) | 0E288000 THRU 0E344999 |
| Mercury Mariner | 50 H.P. (1999) | 0E345000 THRU 0E369299 |
| Mercury Mariner | 50 HP Carb | 0G760300 THRU 0T178499 / 0P017000 THRU 0P094499 / 9944807 THRU 0P016999 / 0G231123 THRU 0G760299 |
| Mercury Mariner | 50 HP Carb 4 CYL | 0P094500 THRU 0P206999 / 0T178500 THRU 0T598999 |
| Mercury Mariner | 50 HP Carb BIGFOOT | 0G760300 THRU 0T178499 / 0P017000 THRU 0P094499 / 9944807 THRU 0P016999 / 0G231123 THRU 0G760299 |
| Mercury Mariner | 50 HP EFI 4 CYL | 0P153500 THRU 0P400999 / 0T409000 THRU 1B355222 / 1C000001 THRU 1C050251 / 0P401000 THRU 0P515896 / 1C050252 THRU 1C453839 / 0P515897 THRU 0P580772 / 1C453840 & Up |
| Mercury Mariner | 55 3 CYL | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 9741042 THRU 9885344 / 0D000750 THRU 0G290584 / 9885345 THRU 9973099 / 0G290585 THRU 0G589999 / 0T980000 THRU 2B535834 / 0P325500 THRU 0P392690 |
| Mercury Mariner | 60 3 CYL | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 / 9683055 THRU 9885344 / 0D000750 THRU 0G290584 / 9885345 THRU 9973099 / 0G290585 THRU 0G589999 / 0T980000 THRU 2B535834 / 0P325500 THRU 0P392690 |
| Mercury Mariner | 60 3 CYL BIGFOOT | 0G760300 THRU 0T979999 / 0P017000 THRU 0P325499 / 9973100 THRU 0P016999 / 0G590000 THRU 0G760299 |
| Mercury Mariner | 60 HP 1.0L EFI L4 APX | 1C782688 & Up |
| Mercury Mariner | 60 HP Carb 4 CYL | 0P094500 THRU 0P206999 / 0T178500 THRU 0T598999 |
| Mercury Mariner | 60 HP EFI 4 CYL | 0P153500 THRU 0P400999 / 0T409000 THRU 1B355222 / 1C000001 THRU 1C050251 / 0P401000 THRU 0P515896 / 1C050252 THRU 1C453839 / 0P515897 THRU 0P580772 / 1C453840 & Up |
| Mercury Mariner | 60 HP EFI SeaPro 4 CYL | 1C453840 & Up |
| Mercury Mariner | Formula 60 | 1C104574 THRU 1C782687 |
| Mercury Mariner | 75 H.P. (1998) | 0E288000 THRU 0E344999 |
Equivalent manufacturer part numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury/MerCruiser | 20863, 25-20863, 25-815460 |
Related parts for your Mercury
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- Board 27-822189Despiece Cola 25-50 CV 4T EFI/Carb
- Screw with Retainer 8M0058389Despiece Cola Alpha One Gen 1 MerCruiser - Inferior
- Retainer 26-69189Retenes Aceite
- Retainer 26-70081BF75AT BF90AT
Product Details
REC25-80863
Specific References
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