Exhaust manifold set for Mercruiser 7.4L and 8.2L engines from approx 1981-1987 with 3\" exit on the risers.
This set has 3 inch diameter exit on the riser/elbow. 4 inch exit is more common, please check before ordering. See my store for 4 inch exit.
Manifold Replaces Mercuiser 807078T10, 807078T09, 807078A6, 807078A4, 807078A2, 866632-c and 89011A8
Cross Reference Guide for Manifold:BARR:MC-1-89011Osco:9011, style=\"box-sizing: border-box; font-family: Roboto, sans-serif; font-size: 14px; font-variant-ligatures: none; outline: none !important;\">Riser Replaces:
Sierra 18-1970-1
Osco 8503A
Mallory 9-40557
Barr MC-20-98504
GLM 51110
Mercruiser 95755A2
Mercruiser 98503A2
Mercruiser 98504A3