Sierra Mercruiser Manifold Elbow • 18-1976-2

Fits most Mercruiser V6 and V8 applications, 7 degree (4" O.D. Riser).  Unlike automotive engines, all marine inboards have exhaust risers that feature a water induction elbow. Located behind the engine’s coolant reservoir, the manifold elbow is a critical component to prevent water from entering the engine. It is also a target for corrosion and must be examined frequently and replaced as needed. Sierra, a leading aftermarket manufacturer offers the 18-1976-2 MerCruiser Manifold Elbow which is compatible with most MerCruiser V6 and V8 applications, 7 degree (4" O.D. Riser). This component is recommended for saltwater applications.

Includes:

• Sierra 18-4203
• Sierra 18-0897 Exhaust Elbow Gasket
• Sierra 18-4258 Pipe Plug

Replaces:

• Barr
• MC-20-44354
• GLM
• 51140
• Mallory
• 9-40559
• Mercruiser
• 44354A3
• 807914A1
• 44354A9
• 44354A10
• 44354A13
• 807988A2
• 807988A03
• Osco
• 4354

For use with:

• Manifolds
• 18-1952-1
• 18-1953-2
• 18-1957-1
• Exhaust Elbow Gaskets
• 18-0672
• 18-0897
• 18-2849-1
• 18-2849-9-1