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CYLINDER HEAD GASKET 313413
Description
Function and Technical Context
The cylinder head gasket is the sealing component that seals the joint between the engine block and the cylinder head, ensuring that combustion gases remain confined within the combustion chambers without escaping into the cooling or lubrication circuits. It operates simultaneously within the combustion system, the water cooling circuit, and the oil circuit, withstanding continuous cycles of pressure and temperature. If this gasket loses its sealing ability—due to aging, localized overheating, or improper cylinder head tightening—the engine may mix coolant with oil, lose compression in one or more cylinders, or expel gases through unintended areas. This part replaces parts 313413, 0313413 (OMC) and 802249, 878846 (Mercury/Mariner/MerCruiser), and is fully compatible with Johnson and Evinrude engines in the 60 to 75 hp ranges.
When should this part be replaced?
The most common symptoms of a faulty cylinder head gasket are: persistent white smoke from the exhaust (indicating water in the combustion chamber), a milky emulsion in the engine oil, loss of compression detected during a cylinder test, or recurring overheating with no apparent cause in the cooling system. It is recommended to inspect and replace the cylinder head gasket whenever the cylinder head is removed for any service, or when the engine has experienced a severe overheating episode, as extreme thermal cycling irreversibly deforms and damages the sealing material. Replacing it as a preventive measure during a thorough overhaul prevents costly breakdowns—such as cylinder head warping or block erosion—that could leave the vessel inoperable on the open sea.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| E60 | E60ELCCR 1988, E60ELCDS 1986, E60ELCUC 1987, E60TLCCR 1988, E60TLCDS 1986, E60TLCUC 1987, E60TTLCCR 1988 |
| E65 | E65RWLCDR 1986, E65RWLCOC 1985, E65RWLCRS 1984, E65TELCDR 1986, E65TELCOC 1985, E65TELCRS 1984, E65WMLCDR 1986, E65WMLCOC 1985, E65WTLCOC 1985, E65WTLCRS 1984 |
| E70 | E70ELCIH 1981, E70ELCIM 1981, E70ELCNB 1982, E70ELCOS 1985, E70ELCRD 1984, E70ELCSA 1980, E70ELCTE 1983, E70TLCIM 1981, E70TLCNB 1982, E70TLCOS 1985, E70TLCRD 1984, E70TLCTE 1983 |
| E75 | E75ECCA 1988, E75ECDC 1986, E75ECOS 1985, E75ECRD 1984, E75ECUR 1987, E75ELCRD 1984, E75ERCIH 1981, E75ERCIM 1981, E75ERCNB 1982, E75ERCSA 1980, E75ERCTE 1983, E75ERLCIH 1981, E75ERLCIM 1981, E75ERLCNB 1982, E75ERLCSA 1980, E75ERLCTE 1983, E75TLCRD 1984, E75TRLCIH 1981, E75TRLCIM 1981, E75TRLCNB 1982, E75TRLCSA 1980, E75TRLCTE 1983 |
| J60 | J60ELCCR 1988, J60ELCDS 1986, J60ELCUC 1987, J60TLCCR 1988, J60TLCDS 1986, J60TLCUC 1987, J60TTLCCR 1988 |
| J65 | J65RWLCDR 1986, J65RWLCOC 1985, J65RWLCRS 1984, J65TELCDR 1986, J65TELCOC 1985, J65TELCRS 1984, J65WMLCDR 1986, J65WMLCOC 1985, J65WTLCOC 1985, J65WTLCRS 1984 |
| J70 | J70ELCIH 1981, J70ELCIM 1981, J70ELCNB 1982, J70ELCOS 1985, J70ELCRD 1984, J70ELCSA 1980, J70ELCTE 1983, J70TLCIM 1981, J70TLCNB 1982, J70TLCOS 1985, J70TLCRD 1984, J70TLCTE 1983 |
| J75 | J75ECCA 1988, J75ECDC 1986, J75ECNB 1982, J75ECOS 1985, J75ECRD 1984, J75ECTE 1983, J75ECUR 1987, J75ELCNB 1982, J75ELCRD 1984, J75ELCTE 1983, J75ERCIH 1981, J75ERCIM 1981, J75ERCSA 1980, J75ERLCIH 1981, J75ERLCIM 1981, J75ERLCSA 1980, J75TELCIM 1981, J75TLCNB 1982, J75TLCRD 1984, J75TLCTE 1983, J75TRLCIH 1981, J75TRLCSA 1980 |
| Otros | 55872A 1968, 55872R 1968, 55872S 1968, 55873A 1968, 55873R 1968, 55873S 1968, 55972A 1969, 55972C 1969, 55973A 1969, 55973C 1969, 55ES69A 1969, 55ES69C 1969, 55ESL69A 1969, 55ESL69C 1969, 60072B 1970, 60072D 1970, 60073B 1970, 60073D 1970, 60172C 1971, 60172E 1971, 60173C 1971, 60173E 1971, 60ES70B 1970, 60ES70D 1970, 60ES71C 1971, 60ES71E 1971, 60ESL70B 1970, 60ESL70D 1970, 60ESL71C 1971, 60ESL71E 1971, 65272S 1972, 65273S 1972, 65372R 1973, 65373R 1973, 65ES72S 1972, 65ES73R 1973, 65ESL72S 1972, 65ESL73R 1973, 70442M 1974, 70443M 1974, 70472M 1974, 70473M 1974, 70572B 1975, 70572E 1975, 70573B 1975, 70573E 1975, 70673D 1976, 70773S 1977, 70873C 1978, 70973R 1979, 70EL76D 1976, 70EL77S 1977, 70EL78C 1978, 70EL79R 1979, 70ES74M 1974, 70ES75B 1975, 70ES75E 1975, 70ESL74M 1974, 70ESL75B 1975, 70ESL75E 1975, 70ESLR74M 1974, 75542B 1975, 75543B 1975, 75642D 1976, 75643D 1976, 75742S 1977, 75743S 1977, 75842C 1978, 75843C 1978, 75942R 1979, 75943R 1979, 75ELR76D 1976, 75ELR77S 1977, 75ELR78C 1978, 75ELR79R 1979, 75ER76D 1976, 75ER77S 1977, 75ER78C 1978, 75ER79R 1979, 75ESLR75B 1975, 75ESR75B 1975, MISCELLANEOUS 1975, MISCELLANEOUS 1976, MISCELLANEOUS 1977, MISCELLANEOUS 1978, MISCELLANEOUS 1979, MISCELLANEOUS 1980, MISCELLANEOUS 1981, MISCELLANEOUS 1982, MISCELLANEOUS 1983, MISCELLANEOUS 1984, MISCELLANEOUS 1985, MISCELLANEOUS 1986, MISCELLANEOUS 1987, MISCELLANEOUS 1988, TR-10R 1968, TR-10S 1968, TRL-10R 1968, TRL-10S 1968 |
Equivalent Manufacturer Part Numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury/Mariner/Mercruiser | 802249, 878846 |
| OMC | 0313413, 313413 |
Related Johnson/Evinrude Spare Parts
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