Accessories - Riser Gaskets

Riser gasket for raw water cooled manifolds (installed between adaptor plate and riser).

Fits Chrysler V8 273, 318, 340 and 360 C.I.D., all models 1986 and up (center riser direct replacement).

Compatible parts:

• CM-1-4417063 water cooled center discharge exhaust manifold to fit the small block Chrysler (1/2" N.P.T. cooling hose connections). Used during years 1986 and later.
• 534005 generic riser designed to be mounted to the original Chrysler center riser exhaust manifold (for use with 3" I.D. exhaust hose/3/4" N.P.T. cooling hose connection).

Manufactured by Barr Marine. Part number CM47-4417127.

Gasket needed to mount Chrysler exhaust riser spacer. Installed between exhaust manifold CM-1-4417063 and adapater plate #534002. Gasket for attaching riser to the plate is part #CM47-4417232.

Manufactured by Barr Marine. Part number CM47-534004.

Gasket used with Crusader water inlet elbow.

Manufactured by Barr Marine. Part number CR47-C-96216.

Direct replacement manifold to riser gasket.

Replaces Crusader 98127.

Fits these applications:

• Crusader V8 283, 305, 307, 327 and 350 C.I.D. (center riser direct replacement).
• Crusader V8 454 and 502 C.I.D., all models (center rise direct replacement).

Compatible parts:

• CR-1-98125 direct replacement center rise exhaust manifold.
• CR-1-98243 direct replacement water cooled exhaust manifold.
• CR-20-29015 direct replacement exhaust riser (high profile).
• CR-20-98126 direct replacement exhaust riser (low profile), Replaces Crusader part # 98126.
• CR-20-98128 manifold to riser 3" spacer block (single).

Manufactured by Barr Marine. Part number CR47-C-98127.

Replacement exhaust elbow gasket (1 hole).

Replaces Crusader 96562, Osco 6562 and Mallory 9-65401.

Fits these applications:

• Crusader V8 283, 302, 305, 307, 327 and 350 C.I.D., all models (direct replacement).
• Crusader V8 454 and 502 C.I.D., all models (direct replacement).

Compatible parts:

• CR-1-97752 direct replacement starboard side manifold.
• CR-1-97753 direct replacement port side manifold.
• CR-1-97992 direct replacement starboard side manifold.
• CR-1-97993 direct replacement port side manifold.
• CR-20-96560 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose.
• CR-20-97386 90 degree swivel elbow.
• CR-20-97387 elbow, lower swivel with 3" outlet.
• CR-20-97624 elbow, lower swivel with 4" outlet.
• CR-20-97924 direct replacement exhaust elbow assembly, 4" I.D. exhaust hose.
• CR-20-98068 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose. For use without Crusader spacer part # 97295.
• CR-20-97169 6" riser extension.
• CR-20-97772 4" riser l extension.

Manufactured by Barr Marine. Part number CR47-C-96562.

Replacement exhaust elbow gasket (3 hole).

Replaces Crusader 96108, Osco 6108 and Mallory 9-65400.

Fits these applications:

• Crusader V8 283, 302, 305, 307, 327 and 350 C.I.D., all models (direct replacement).
• Crusader V8 454 and 502 C.I.D., all models (direct replacement).

Compatible parts:

• CR-1-97752 direct replacement starboard side manifold.
• CR-1-97753 direct replacement port side manifold.
• CR-1-97992 direct replacement starboard side manifold.
• CR-1-97993 direct replacement port side manifold.
• CR-20-96560 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose.
• CR-20-97386 90 degree swivel elbow.
• CR-20-97387 elbow, lower swivel with 3" outlet.
• CR-20-97624 elbow, lower swivel with 4" outlet.
• CR-20-97924 direct replacement exhaust elbow assembly, 4" I.D. exhaust hose.
• CR-20-98068 direct replacement exhaust elbow assembly, 3" I.D. exhaust hose. For use without Crusader spacer part # 97295.
• CR-20-97169 6" riser extension.
• CR-20-97772 4" riser l extension.

Manufactured by Barr Marine. Part number CR47-C-96108.

Gasket for mounting exhaust riser with Barr Marine style exhaust manifolds.

• Gasket contained in the 20-0002P package.

Manufactured by Barr Marine. Part number 20-0001.

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 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 restrictor gasket. To be used with MC-20-87918 ((2) required per plate used).

Replaces Osco 8503-GB, Mallory 9-61422, HGE 41811, Sierra 18-0672 and GLM 30220.

Fits these applications:

• MerCruiser V6 229 and 262 C.I.D., Models 185R, 185MR, 205R and 205MR (center riser direct replacement).
• MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).
• MerCruiser V8 Models 330, 340 and 454 Magnum, inboard and stern drive units (center riser direct replacement).

• Replaces MerCruiser part # 27-41811.

Compatible parts:

• MC-1-87114 direct replacement water cooled exhaust manifold.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• 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 MC47-27-41811.

Direct replacement restrictor gasket.

Replaces Osco 8503-GR, Mallory 9-61413, HGE 41813, Sierra 18-0897 and GLM 30240.

Fits these applications:

• MerCruiser V6 229 and 262 C.I.D., Models 185R, 185MR, 205R and 205MR (center riser direct replacement).
• MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).
• MerCruiser V8 Models 330, 340 and 454 Magnum, inboard and stern drive units (center riser direct replacement).

• Replaces MerCruiser part # 41813.

Compatible parts:

• MC-1-87114 direct replacement water cooled exhaust manifold.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• 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 MC47-27-41813.

Direct replacement exhaust elbow gasket.

Replaces Osco 8503-G, Mallory 9-61414, Sierra 18-2849 and GLM 32080.

Fits these applications:

• MerCruiser V6 229 and 262 C.I.D., Models 185R, 185MR, 205R and 205MR (center riser direct replacement).
• MerCruiser V8 Models 898R, 228R and 260R (center riser direct replacement).
• MerCruiser V8 Models 330, 340 and 454 Magnum, inboard and stern drive units (center riser direct replacement).

• Replaces MerCruiser part # 27-87105.

Compatible parts:

• MC-1-87114 direct replacement water cooled exhaust manifold.
• MC-1-89011 direct replacement water cooled exhaust manifold.
• MC-1-99746 direct replacement water cooled exhaust manifold.
• MC-20-44354 direct replacement water cooled center discharge riser. Accepts 4" I.D. exhaust hose (8 degree angle).
• MC-20-98502 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (0 degree angle).
• MC-20-98504 direct replacement water cooled center discharge riser. Accepts 3" I.D. exhaust hose (15 degree angle).
• 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 MC47-27-87105.

Direct replacement exhaust elbow to manifold gasket.

Replaces Sierra 18-0885.

Fits these applications:

• 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).

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-20-72963 direct replacement exhaust elbow riser.
• MC-20-76668 direct replacement exhaust elbow riser.
• MC-20-61811A4 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.

Manufactured by Barr Marine. Part number MC47-27-48042.

Exhaust manifold to elbow and end cap gasket.

Replaces Sierra 18-2861 and GLM 33330.

Fits these applications:

• OMC 4 cylinder 153 C.I.D. 120 H.P. 2.5 liter, Model 120 engine (log style direct replacement).
• OMC 4 cylinder 181 C.I.D. 140 H.P. 3.0 liter, Model 140 engine (log style direct replacement).

Compatible parts:

• OMC-1-981462 direct replacement water cooled exhaust manifold.
• OMC-1-982657 direct replacement water cooled exhaust manifold. Manifold has the heat source in the exhaust port for automatic choke.
• OMC-1-984054 direct replacement exhaust manifold.
• OMC-20-908014 exhaust manifold to riser adaptor for use with OMC riser part #'s 980188 and 910380.
• OMC-20-910380 direct repalcement exhaust elbow.
• OMC-20-980536 direct replacement exhaust riser.

Manufactured by Barr Marine. Part number OMC47-311121.

Adaptor plate (OMC-20-908014) to riser (OMC-20-910380) gasket.

Replaces Mallory 9-65100, Sierra 18-2875 and GLM 33770.

Fits these applications:

• OMC 4 cylinder 153 C.I.D. 120 H.P. 2.5 liter, Model 120 engine (log style direct replacement).
• OMC 4 cylinder 181 C.I.D. 140 H.P. 3.0 liter, Model 140 engine (log style direct replacement).
• OMC (Volvo) 4 cylinder 181 C.I.D. 140 H.P. 3.0 liter, all carbureted models with Vortec style head (log style direct replacement).

• The stainless steel restrictor plate is only used in some applications. If you are not sure if the plate is used, please consult your OEM. Two gaskets are required when using the plate (one on each side of the plate).

Compatible parts:

• OMC-1-3858850 direct replacement exhaust manifold.
• OMC-1-981462 direct replacement water cooled exhaust manifold.
• OMC-1-982657 direct replacement water cooled exhaust manifold. Manifold has the heat source in the exhaust port for automatic choke.
• OMC-1-984054 direct replacement exhaust manifold.
• OMC-20-3862603 direct repalcement exhaust manifold.
• OMC-20-908014 exhaust manifold to riser adaptor for use with OMC riser part #'s 980188 and 910380.
• OMC-20-910380 direct repalcement exhaust elbow.
• OMC-20-980536 direct replacement exhaust riser.

Manufactured by Barr Marine. Part number OMC47-908013.