Sierra 18-1951-1 Exhaust Manifold Mercruiser GM Small Block

• Mercruiser log style exhaust manifold
• Direct replacement manifold fits Mercruiser GM V8 small block 305 and 350 cu. in. engines from 1977 to 1982 with end riser
• For Mercruiser 198; 228; 255; 260; and 898 model engines
• Starboard side
• Heavy duty cast iron
• Painted black
• Includes all gaskets; riser studs; and drain plugs
• Manifold mounting kit P/N 18-8548 – sold separately
• Replaces Mercruiser 77235A2; 77235A8
• Replaces Osco 7235B
• Replaces Sierra 18-1951

Fits most Mercruiser GM Small Blocks with End Risers

This manifold will replace most 1977 to 1982 Mercruiser (GM) 5.0L & 5.7L V8's (end rise) Starboard side only. Comes with complete gasket kit and riser mounting studs (see picture). Fits Engines: Most Mercruiser (GM) small blocks with end riser (Starboard Side) 1977-1982 OE Replacement: 77235 A2; A8 (Starboard Side) Aftermarket Replacement Use this chart to match other aftermarket part numbers to this part: Osco: 7235B Barr: MC-1-77235 Sierra: 18-1951-1 Aqua Power: 5509 GLM: 51238.

• Fits most Mercruiser GM Small Blocks with End Risers.

• Key Features:
• Starboard Side
• Supplied with Mounting Package

          Use With:

• Exhaust Manifold Gasket 18-2949
• Hardware Kit [Manifold Bolts] 18-8548
• Exhaust Manifold Gasket 18-0872
• Elbow 18-1971
• Elbow 18-1978
• Manifold End Cap Gasket 18-2832
• Manifold Cap Gasket (Priced Per Pkg of 2) 18-2832-9
• Block Off Plate 18-4008
• Manifold End Plate 18-4009
• Exhaust Manifold Mounting Kit 18-8520
• Exhaust Elbow Mounting Kit 18-8554
• Exhaust Elbow Mounting Kit 18-8556

• Applications:
• GM 228 S/N 4765100-6218461
• GM 250 S/N 4768860-4908849
• GM 255 S/N 4499061-Up
• GM 260 S/N 4908850-6218461

• Replaces:
• Mercruiser
  • 77235A8; 77235A2
• Barr
  • MC-1-77235
• GLM
  • 51238
• Mallory
  • 9-40504
• Osco
  • 7235B
• Pro Marine
  • 51238

• Use with:
• Port Exhaust Manifold 18-1950-1.
• Exhaust Manifold Gasket 18-2949.
• Mounting Kit 18-8548.