MerCruiser 4 Cylinder 2.5L, 3.0L MerCarb Exhaust Kit with Riser MC-20-76325 and 3 Inch Spacer 

Complete Barr Marine exhaust kit for the MerCruiser 4 Cylinder 2.5L, 3.0L MerCarb. Everything listed below is included in this kit, so the complete exhaust setup can be ordered under one part number.

Kit includes:

• (1) MC-1-99798 MerCruiser 4 Cylinder 2.5L, 3.0L MerCarb Exhaust Manifold. Direct replacement water cooled manifold (MerCarb (3 11/16" X 2") bolt pattern). 6 bolt mounting. Includes all plugs, gaskets and mounting hardware to the cylinder head. Replaces MerCruiser 99798A9/806867A8 and Osco 9798.
• (1) MC-20-76325 MerCruiser 4 Cylinder 2.5L, 3.0L Exhaust Riser. Direct replacement exhaust riser. Includes plugs, gasket and mounting hardware to mount to the manifold. Replaces MerCruiser 76325A9, Osco 6325, Mallory 9-40552 and Sierra 18-1972.
• (1) MC-20-61851A3 MerCruiser 4 and 6 Cylinder Riser Spacer Block 3 Inch. Manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug. Each spacer block kit includes the spacer block(s) and the corresponding package to mount. Replaces MerCruiser 61851A3.

Fits MerCruiser 4 cylinder 153 and 181 C.I.D., 120 H.P. (2.5L) and 140 H.P. (3.0L), Models 120R and 140R-MR/Alpha 1 (log style direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.''s are achieved after replacing an OEM manifold with Barr replacement parts.

• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Compatible parts:

• MC-1-95862 direct replacement water cooled manifold (Rochester (3 1/4" X 1 7/8") bolt pattern). 6 bolt mounting.
• MC-1-96705 direct replacement water cooled manifold (Rochester (3 1/4" X 1 7/8") bolt pattern). 6 bolt mounting.
• MC-20-12076 direct replacement exhaust riser.
• 1-60252 direct replacement exhaust manifold end cap/connector.
• 1-60252P front end plate mounting package.
• MC-1-99798P exhaust manifold to cylinder head mounting package.
• MC-29-47587 direct replacement lower thermostat housing.
• MC-29-60372 direct replacement upper thermostat housing.
• MC47-27-48043 direct replacement exhaust manifold end cap/connector gasket (will fit both ends).
• MC47-27-73814 direct replacement exhaust manifold end cap gasket. Utilized with 1-73813 rear end cap.
• MC47-27-96429 direct replacement exhaust manifold to cylinder head gasket.
• MC47-27-99777-3 direct replacement exhaust elbow to manifold gasket.
• MC-1-52390 direct replacement water cooled exhaust manifold. For serial # 3332138 and up.
• MC-1-58759 direct replacement water cooled manifold to fit the 6 cyl. GM (Model 165) engine.
• MC-20-60426 direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area).
• MC-20-76351 direct replacement exhaust elbow riser.
• 1-54870 direct replacement exhaust manifold rear end cap. Serial # 4481625 and below.
• 1-54870P rear end cap mounting package.
• MC-1-52390P exhaust manifold mounting package.
• MC-1-58759P exhaust manifold mounting package.
• MC-1-58764P manifold to carburetor adaptor mounting package.
• MC-20-55730 stainless steel fresh water cooling block off plate for use with MerCruiser riser #''s 60426, 76351 and 76771. Requires (2) gaskets part # MC47-27-52076.
• MC-20-60207 stainless steel block off plate (with vent hole) for use with MerCruiser riser #''s 60426, 76351 and 76771. Requires (2) gaskets part # MC47-2752076.
• MC-20-60426P exhaust riser elbow mounting package. For use with both MC-2060426 and MC-20-76351 risers.
• MC47-27-46401 direct replacement manifold to head gasket.
• MC47-27-52076 direct replacement exhaust elbow to exhaust manifold gasket.
• MC47-27-53354 direct replacement exhaust manifold to cylinder head gasket.
• MC47-27-53354A1 exhaust manifold gasket set.

Composite kit picture shown is for reference only. See list of included parts above in the description.