Manifolds

OEM MerCruiser 454 / 502 / 7.4 Manifold 807078T08 OEM MerCruiser E-Coated Exhaust Manifold Fits 1981 and up GM 454 and 502 Port or Starboard Side Replaces # 807078T10(Ceramic coating) and 89011

Sierra Replacement Manifold Kit for MerCruiser Big Block V8 454 / 502 Engines 18-1957-2 Comparable Part Numbers: • Osco: 9011A • GLM: 51240 • MerCruiser: 89011A8 , 807078T08 , 807078T10 ,...

OEM MerCruiser 454 or 502 Ceramic Coated Manifold 807078T10 89011 Fits 1981 and up GM 454 d 502 Port or Starboard Side. Replaces part numbers 89011A8, 807078A2, 807078A4, 807078A6, 807078T09 Includes manifold to head gasket and 90 water connection...