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This Johnson 0.0279.300 stainless end cover screw replaces Johnson 05-04-642 screws. The Allen CH/Head screw is suitable for Johnson engine cooling pumps: F4B-8 pumps (10-24074-1, 10-24074-13, 10-24074-14, 10-24570-01, 10-24570-13, 10-24570-53 & 10-24570-54), F4B-89 pumps (10-24074-2, 10-24570-02 & 10-24570-14), F4B-802 pumps