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Add to CartThis sierra exhaust manifold features a one piece design and is for use with MerCruiser 2.5L/3.0L engines.
Used With:
Interchangeable With:
Supersedes 18-1956-1 & 18-1956-2
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
MerCruiser 4Cyl Exhaust Manifold Gasket Set by Sierra For GM 153 & 181 (2.5 & 3.0L) CID Engines; 120 & 140 HP - S/N 6229718 & UP (With Siamese Port Cylinder Heads) Interchangeable...
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Sierra 18-7370N MerCruiser 2.5L/3.0L Carburetor Flow tested throughout the entire throttle range Fuel mixture and idle settings are preset, only minor idle and choke adjustments are...
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Sierra 18-1975-1 MerCruiser 2.5L/3.0L 1982 & Newer Exhaust Elbow w/Tube Replaces 12076A2 This Sierra aftermarket exhaust elbow is for MerCruiser 2.5L/3.0L engines 1982 and newer. Fits: MCM 2...
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Quicksilver OEM MerCruiser 2.5L/3.0L Exhaust Manifold 860235A04 This Quicksilver OEM MerCruiser part features a one piece design and is for use with MerCruiser 2.5L/3.0L engines Special Order...
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