Sierra 18-1953-2 Exhaust Manifold for MerCruiser V8 5.0L 5.7L Engines

The Sierra 18-1953-2 is a premium cast iron exhaust manifold designed as a direct replacement for MerCruiser GM small block V8 engines with center rise configuration. This heavy-duty manifold fits 5.0L (305 cu. in.), 5.7L (350 cu. in.), 377, and 383 cubic inch engines manufactured from 1983 through 2002, and some 2003 models.

Key Features:

• Center rise style design fits both port and starboard sides of engine
• Cast iron construction with protective primer and paint coating for durability
• Accepts all original mounting brackets and hardware
• Riser mating bolt pattern: 3-7/16" x 3-1/16" (center-to-center)
• Includes gaskets, lower water fitting, mounting bolts, and all necessary plugs
• Ready to install right out of the box
• Recommended for freshwater applications

This manifold replaces MerCruiser part numbers 87714A8, 87114A19, 87114A30, 860246A3, 860246A7, 860246A9, 860246A10, 860246A15, 860246Q11, 860336A2, and 860337A2. Compatible with MerCruiser models 200, 228R, 230, 260, 260R, 300, 320, and 898. Does not replace newer dry-joint style manifolds or older log style manifolds. Use with Sierra Mounting Kit 18-8520 (sold separately). Each purchase is for one manifold.