Gaskets and Seals - MerCruiser

Direct replacement exhaust manifold end cap/connector gasket (will fit both ends).

Replaces Mallory 9-61424, HGE 48043, Sierra 18-2832 and GLM 31490.

Fits these applications:

• MerCruiser 4 cylinder 181 C.I.D. 140 H.P., Model 140 engine (log style direct replacement).
• 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).
• MerCruiser straight 6 cylinder Model 165 (log style direct replacement).
• MerCruiser V8 198, 228, 255, 260 and 898, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 225, 250, 255, 270 and 280, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 325, 330, 350, 370 and 400, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 (Ford) 302 and 351 C.I.D., Models 188, 215, 225, 233, 255 and 888 inboard and I/O units (log style direct replacement).

Compatible parts:

• MC-1-47735 direct replacement water cooled exhaust manifold (port side).
• MC-1-47736 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-47737 direct replacement water cooled exhaust manifold (port side).
• MC-1-47738 direct replacement water cooled exhaust manifold (starboard side).
• 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-1-65603 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-65604 direct replacement water cooled exhaust manifold (port side).
• MC-1-77234 direct replacement water cooled exhaust manifold (port side).
• MC-1-77235 direct replacement water cooled exhaust manifold (starboard side).
• 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-1-99798 direct replacement water cooled manifold (MerCarb (3 11/16" X 2") bolt pattern). 6 bolt mounting.
• MC-20-12076 direct replacement exhaust riser.
• MC-20-60426 direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area).
• MC-20-72963 direct replacement exhaust elbow riser.
• MC-20-76325 direct replacement exhaust riser.
• MC-20-76351 direct replacement exhaust elbow riser.
• MC-20-76668 direct replacement exhaust elbow riser.
• MC-20-76771 direct replacement exhaust elbow riser.
• MC-20-61811A4 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
• MC-20-61851A2 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-48043.

Direct replacement exhaust manifold end cap gasket.

Replaces Mallory 9-61409 and Sierra 18-1210.

Fits MerCruiser 4 cylinder 153 C.I.D. 120 H.P., Model 120 engine (log style direct replacement).

Compatible parts:

• MC-1-63122 direct replacement water cooled exhaust manifold.
• MC-20-55538 direct replacement exhaust elbow/ riser.

Manufactured by Barr Marine. Part number MC47-27-39923.

Exhaust manifold gasket set.

Replaces Mallory 9-61403 and Sierra 18-4395.

Fits MerCruiser 4 cylinder 153 C.I.D. 120 H.P., Model 120 engine (log style direct replacement).

Compatible parts:

• MC-1-63122 direct replacement water cooled exhaust manifold.
• MC-20-55538 direct replacement exhaust elbow/ riser.

Manufactured by Barr Marine. Part number MC47-27-35898A4.

Direct replacement exhaust manifold to exhaust elbow gasket.

Replaces Mallory 9-61423 and Sierra 18-2819.

Fits MerCruiser 4 cylinder 153 C.I.D. 120 H.P., Model 120 engine (log style direct replacement).

Compatible parts:

• MC-1-63122 direct replacement water cooled exhaust manifold.
• MC-20-55538 direct replacement exhaust elbow/ riser.

Manufactured by Barr Marine. Part number MC47-27-39915.

Direct replacement intake manifold gasket.

Replaces Sierra 18-0332.

Fits MerCruiser 4 cylinder 153 C.I.D. 120 H.P., Model 120 engine (log style direct replacement).

Compatible parts:

• MC-1-63122 direct replacement water cooled exhaust manifold.
• MC-20-55538 direct replacement exhaust elbow/ riser.

Manufactured by Barr Marine. Part number MC47-27-35898.

Exhaust manifold gasket set.

Replaces Sierra 18-4398.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P., Model 140 engine (log style direct replacement).

Compatible parts:

• MC-1-52390 direct replacement water cooled exhaust manifold. For serial # 3332138 and up.
• 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.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-53354A1.

Direct replacement exhaust manifold to cylinder head gasket.

Replaces Sierra 18-1203 and GLM 31570.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P., Model 140 engine (log style direct replacement).

Compatible parts:

• MC-1-52390 direct replacement water cooled exhaust manifold. For serial # 3332138 and up.
• 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.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-53354.

Direct replacement exhaust manifold to cylinder head gasket.

Replaces Mallory 9-61419 and Sierra 18-1204.

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).

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-1-99798 direct replacement water cooled manifold (MerCarb (3 11/16" X 2") bolt pattern). 6 bolt mounting.
• MC-20-12076 direct replacement exhaust riser.
• MC-20-76325 direct replacement exhaust riser.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-96429.

Replacement carburetor to intake/ exhaust manifold gasket.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P. 3.0L and 3.0LX, all models 1990 and up with Vortec style head (log style direct replacement).

Compatible parts:

• MC-1-860235 direct replacement exhaust manifold.
• MC-20-12076 direct replacement exhaust riser.

Manufactured by Barr Marine. Part number MC47-27-807982.

Replacement cylinder head to exhaust manifold gasket.

Replaces GLM 33580.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P. 3.0L and 3.0LX, all models 1990 and up with Vortec style head (log style direct replacement).

Compatible parts:

• MC-1-860235 direct replacement exhaust manifold.
• MC-20-12076 direct replacement exhaust riser.

Manufactured by Barr Marine. Part number MC47-27-815528.

Direct replacement manifold to head gasket.

Replaces HGE 46401 and Sierra 18-2830.

Fits MerCruiser straight 6 cylinder Model 165 (log style direct replacement).

Compatible parts:

• 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.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-46401.

MerCruiser Carburetor gasket.

Manufactured by Barr Marine. Part number MC47-27-70143.

Direct replacement restrictor gasket. Direct replacement restrictor gasket.

Replaces MerCruiser 864549A02.

Fits these applications:

• MerCruiser V6 4.3L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V6 and V8 4.3L, 5.0L, 5.7L and 6.2L "dry joint", all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

• Replaces MerCruiser part # 864549A02.
• Please refer to OEM Information for proper installation procedures.
• Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances.

Compatible parts:

• MC-1-864612 direct replacement exhaust manifold.
• MC-1-865735 direct replacement exhaust manifold.
• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• MC-20-864591 direct t replacement exhaust riser/ elbow.
• MC-20-864908A1 direct replacement 6 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-864929A3 direct l replacement 3 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.

Manufactured by Barr Marine. Part number MC47-27-864549.

Direct replacement restrictor gasket.

Replaces MerCruiser 864547A02.

Fits these applications:

• MerCruiser V6 4.3L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V6 and V8 4.3L, 5.0L, 5.7L and 6.2L "dry joint", all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

• Replaces MerCruiser part # 864547A02.
• Please refer to OEM Information for proper installation procedures.
• Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances.

Compatible parts:

• MC-1-864612 direct replacement exhaust manifold.
• MC-1-865735 direct replacement exhaust manifold.
• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• MC-20-864591 direct t replacement exhaust riser/ elbow.
• MC-20-864908A1 direct replacement 6 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-864929A3 direct l replacement 3 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-865996A3 need to purchase additional block of gaskets for close cooled applications. Sold as shown.

Manufactured by Barr Marine. Part number MC47-27-864547.

Direct replacement restrictor gasket.

Replaces MerCruiser 864850A02.

Fits these applications:

• MerCruiser V6 4.3L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V6 and V8 4.3L, 5.0L, 5.7L and 6.2L "dry joint", all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).
• MerCruiser V8 5.0L, 5.7L and 6.2L "dry joint" exhaust, all carbureted, MPI, inboard, Alpha and Bravo stern drive models (center riser direct replacement).

• Replaces MerCruiser part # 864850A02.
• Please refer to OEM Information for proper installation procedures.
• Always use the correct riser gasket for your application and refer to the correct guide to install gaskets correctly. Improperly installed gaskets, leaks or damage caused by either are not covered by the Barr Marine warranty. Gaskets are not subject to exchange or refund under any circumstances.

Compatible parts:

• MC-1-864612 direct replacement exhaust manifold.
• MC-1-865735 direct replacement exhaust manifold.
• MC-20-864309 direct replacement exhaust riser/elbow. Riser will replace the equivalent part number on 4.3L Models as well.
• MC-20-864591 direct t replacement exhaust riser/ elbow.
• MC-20-864908A1 direct replacement 6 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-864929A3 direct l replacement 3 inch spacer kit. Kit includes a pair of spacers, mounting hardware and gaskets for raw water cooled applications.
• MC-20-865996A3 need to purchase additional block of gaskets for close cooled applications. Sold as shown.

Manufactured by Barr Marine. Part number MC47-27-864850.

Direct replacement exhaust elbow to exhaust manifold gasket.

Replaces Osco 52076 and HGE 52076.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P., Model 140 engine (log style direct replacement).

Compatible parts:

• MC-1-52390 direct replacement water cooled exhaust manifold. For serial # 3332138 and up.
• 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.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-52076.

Direct replacement exhaust elbow to manifold gasket.

Replaces Mallory 9-61407, Sierra 18-2833 and GLM 31520.

Fits these applications:

• 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).
• MerCruiser straight 6 cylinder Model 165 (log style direct replacement).
• MerCruiser V8 198, 228, 255, 260 and 898, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 (Ford) 302 and 351 C.I.D., Models 188, 215, 225, 233, 255 and 888 inboard and I/O units (log style direct replacement).

• Supersedes MerCruiser part # 27-52076.

Compatible parts:

• MC-1-58759 direct replacement water cooled manifold to fit the 6 cyl. GM (Model 165) engine.
• MC-1-65603 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-65604 direct replacement water cooled exhaust manifold (port side).
• MC-1-77234 direct replacement water cooled exhaust manifold (port side).
• MC-1-77235 direct replacement water cooled exhaust manifold (starboard side).
• 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-1-99798 direct replacement water cooled manifold (MerCarb (3 11/16" X 2") bolt pattern). 6 bolt mounting.
• MC-20-12076 direct replacement exhaust riser.
• MC-20-60426 direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area).
• MC-20-76325 direct replacement exhaust riser.
• MC-20-76351 direct replacement exhaust elbow riser.
• MC-20-76771 direct replacement exhaust elbow riser.
• MC-20-61851A2 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
• MC-20-61851A3 manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.

Manufactured by Barr Marine. Part number MC47-27-99777-3.

Gasket used to mount the MC-20-90880 reservoir/elbow MerCruiser exhaust elbows to the manifold.

Replaces Sierra 18-0113.

Manufactured by Barr Marine. Part number MC47-27-97542.

Direct replacement exhaust manifold to head gasket.

Replaces Mallory 9-61420 and Sierra 18-0183.

Fits MerCruiser V8 (Ford) 302 and 351 C.I.D., Models 188, 215, 225, 233, 255 and 888 inboard and I/O units (log style direct replacement).

Compatible parts:

• MC-1-65603 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-65604 direct replacement water cooled exhaust manifold (port side).
• 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.
• MC-20-76771 direct replacement exhaust elbow riser.
• MC-20-61851A2 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.

Manufactured by Barr Marine. Part number MC47-27-73866.

Direct replacement manifold to head gasket.

Replaces Mallory 9-61421, HGE 99757, Sierra 18-2909 and GLM 32170.

Fits these applications:

• MerCruiser V6 229 and 262 C.I.D., Models 185R, 185MR, 205R and 205MR (center riser direct replacement).
• OMC V6 4.3L Cobra, all models (center riser direct replacement).
• Volvo V6 4.3L Cobra, all models (center riser direct replacement).

Compatible parts:

• MC-1-99746 direct replacement water cooled exhaust manifold.
• OMC-1-3857656 direct replacement exhaust manifold.
• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• OMC-20-913784 direct replacement exhaust riser/ elbow.
• VO-20-3862627 direct replacement exhaust riser/ elbow 11.3 "New style tall one piece".
• MC-20-93320A3 manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
• MC-20-93322A3 manifold to riser 6" spacer blocks (pair) with fastener and gasket package.

Manufactured by Barr Marine. Part number MC47-27-99757.