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I/O exhaust manifold part numbers

I/O Exhaust

for MerCruiser Engines

Type Fits OE# Part#  
4" Exhaust Riser Elbow - 807988A 2 51140  
3" Exhaust Riser Elbow - 98504A 3 51110  
Exhaust Manifold 4.3L V6 99746A17 51220  
Exhaust Manifold 5.0L/5.7L Small Block V8 860246A10 51230  
Exhaust Manifold 7.4L/8.2 liter Big Block V8 807078A 6 51240  
Exhaust Manifold IL 4 Cylinder 806867A 8 51210  
Exhaust Elbow 4 Cylinder Late 12076A 2 18-1975  
Exhaust Elbow 4 Cylinder Early 76325A 2 51130