• Replacement exhaust elbow with 4" outside diameter and 14 degree down angle
• Hot dipped and powder coated to prevent corrosion.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust elbow 864591T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust manifold (model year 2004 and newer, serial number 0W310000 and up). It also fits GM made, V-8 MerCruiser inboard engines (model year 2002 and newer, serial number 0M317000 and up). It has a 4" outside diameter and a 14 degree down angle outlet. For corrosion protection it is hot dipped and powder coated.

• For select MerCruiser stern drive and inboard engines.
• E-coated for corrosion protection on internal coolant passages and exterior finish. For use in freshwater installations.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 807078T08 is for use on the port or starboard (left or right) side of V-8 MerCruiser engines made by General Motors. It fits 454 or 502 cid engines (model year 1981 thru 2002) . Gasket included with the manifold. For freshwater installations.

• For select MerCruiser stern drive and inboard engines.
• Hot dipped and coated for corrosion protection on internal coolant passages and exterior finish. Can be used in freshwater or saltwater installations.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 807078T10 is for use on the port or starboard (left or right) side of V-8 MerCruiser engines made by General Motors. It fits 454 or 502 cid engines (model year 1981 thru 2002) . Gasket included with the manifold. Can be used for freshwater or saltwater installations.

• For select MerCruiser stern drive and inboard engines.
• Hot dipped and coated for corrosion protection on internal coolant passages and exterior finish. Can be used in freshwater or saltwater installations.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 860246A15 is for use on the port or starboard (left or right) side of V-8 MerCruiser stern drive and inboard engines made by General Motors. It fits 305, 350 and 377 cid engines (model year 1983 through 2002) . Gasket included with the manifold. Gasket included with the manifold. Can be used for freshwater or saltwater installations.

• For select MerCruiser stern drive and inboard engines.
• E-coated for corrosion protection on internal coolant passages and exterior finish. For freshwater installations.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 860246Q11 is for use on the port or starboard (left or right) side of V-8 MerCruiser stern drive and inboard engines made by General Motors. It fits 305, 350 and 377 cid engines (model year 1983 through 2002) . Gasket included with the manifold. Gasket included with the manifold. For freshwater installations.

• For select MerCruiser stern drive and inboard engines.
• Features three catalyst exhaust design.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 8M0099070 is for use on MerCruiser 496 Magnum, 8.1S EC stern drive and inboard engines, 8.2L Magnum EC and 8.2L EC inboard engines (serial number 1A350340 through 2A051742). Features the three catalyst design. Gasket included with the manifold.

• Starboard side exhaust manifold featuring single catalyst design.
• For select MerCruiser stern drive and inboard engines.
• Coated for corrosion protection on internal coolant passages and exterior finish.
• Gasket is included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust manifold 8M0103773 is for the starboard side only on V-8 MerCruiser stern drive and inboard engines (3.5, 350 and 377 cid, model year 2008 and newer).

• Converts exhaust manifolds with water rails to the newer style, cast iron manifolds without water rails.
• For select MerCruiser stern drive and inboard engines.
• Coated for corrosion protection on internal coolant passages and exterior finish.
• Gasket, drain plug, o-ring and drain elbow are included with the manifold.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust conversion kit 866178A02 converts exhaust manifolds with water rails to the newer style, cast iron manifolds without water rails. For use on 496 Magnum and 8.1S MerCruiser stern drive and inboard engines.

• Replacement exhaust elbow with 4" outside diameter and seven degree down angle
• Hot dipped and top coated to prevent corrosion. Recommended for use in freshwater or saltwater installations.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

• Replacement exhaust elbow with 4" outside diameter and seven degree down angle
• E-coated to prevent corrosion. Recommended for use in freshwater installations.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

Exhaust elbow 807988Q03 is for use on V-6 and V-8 MerCruiser stern drive or inboard engines made by General Motors having a center rise outlet exhaust manifold (model year 2002 and older). It has a 4" outside diameter and a seven degree down angle outlet. For corrosion protection it is E-coated black for freshwater only installations.

• Manifolds are powder-coated for corrosion protection
• Optional "Ocean Series" Extreme Corrosion Treatment available for additional interior corrosion protection 
• Perfect for use on OEM engines 4.8 to 6.2L up to 500HP (Camshaft duration not to exceed 234 degrees @.050 Duration) 
• Polished Stainless steel tailpipe is manufactured from premium 316L Stainless steel, 4" OD 
• 356T Cast Aluminum Heat treated tubular tuned runner header style internal manifold core for header like performance 
• Drawformed Non-porous manifold shells are powder-coated for corrosion protection
• Silent choice, captains call, and select sound exhaust diverter system compatible
• High Performance Risers include O2 Sensor bungs and plugs.
• Kit includes all bolts and gaskets needed for installation