Description

GM 7.4L Cylinder Head Gasket | Sierra 18-3877

Marine grade cylinder head gasket fits GM Mark IV 454 cu. in. marine engines.

• For GM 7.4L 454 CID Mark 4 (IV) big block marine engines from 1991 and older
• Sold individually – 2 required per engine
• Replaces Mercury 27-13218, 27-13687, 27-19315, 27-49104, 27-61224, 27-97529, 27-8M0049045
• Replaces Crusader 30266, RM0196
• Replaces Pleasurecraft Marine RM0196
• Replaces OMC 914849
• Replaces Mallory 9-63701