MerCruiser 42673 GM 140hp 3.0L Water Jacket Exhaust Manifold MerCarb 860235A04 Heads NOT to be confused with

NOT to be confused with the new style that one whole side is threaded

470 (2 BBL

C9TZ-6A31-B

but it should still be completely usable

USCG approved

MerCruiser 42673 GM 140hp 3.0L Water Jacket Exhaust Manifold MerCarb 860235A04 Heads NOT to be confused withItem Details Great Shape. Not cracked, not welded or patched. Freshwater used part. The Stamped Part Number is 42673 42673C1 which is equivalent to 99798, 806867A2 & 806867A8 Major notes about these manifolds For MerCarb Carburetors (identified by single adjustment screw & 3. 69" x 2. 00" mounting stud pattern & single idle adjustment screw at the base) This style of manifold had the mounting bosses for shift component hardware found on earlier style