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Mercruiser exhaust manifolds and gaskets *Chevy *Ford

GLM aftermarket gaskets for GM marine 2.5, 3.0, 4.1, 4.3, 5.0, 5.7, 7.4 and 8.2 liter engines Ford marine engines 303 / 351 (5.0 and 5.8 liter) Gasket for 224 cubic inch (3.7 liter Mercruiser marine engine) OEM number and GLM marine order numbers listings Mercruiser tech support drawings Search by part number or description here GLM aftermarket exhaust manifolds please click here

Manifolds for 4 Cylinder 2.3 and 3 liter engines
51210 Mercruiser manifold	P/N 51210 Exhaust manifold OEM number 806867A8 $399.99 4 Cylinder models: 153 and 181 GM marine engines years 1982 to 1995. 120 and 140 horsepower GM motors The tuned design will reduce turbulence and enhance flow for higher and maximum marine engine power. Includes the following: P/N 30920 Gasket end cap P/N 33570 Gasket OEM # 27-96429 P/N 13980 Straight fitting water drain OEM number 22-862557 P/N 13984 Straight fitting 3/4-14 X 1 (BRASS) OEM number 22-807155 P/N 31520 Gasket to elbow or adaptor (2 units) OEM number 27- 99777- 2 P/N 21887 Plug OEM # 22-36382 P/N 51030 End cap OEM # 73813A1 P/N 51020 End cap OEM number 805629A1   Item number 51210 Unit 806867A8 GM 120 / 140 hp. 4 Cylinder manifold 153 / 181 CID years 1982 - 1995 GLM Marine aftermarket parts if required: P/N 51210 Exhaust manifold 806867A8 P/N 33570 Gasket 27-96429 P/N 30920 Gasket-End cap (5) 27- 807218 P/N 31520 Gasket-elbow or adaptor P/N 51020 End cap 805629A1 P/N 51030 End cap 73813A1 P/N 13980 Straight fitting water drain contents P/N 13992 Drain plug kit (5) 22-806608A1 P/N 80140 O-ring (5) 25-45253 P/N 22443 Screw-end cap (8) 21-824941 P/N 32180 Gasket-carburetor base 27-807982 P/N 22444 Screw 10-807212 P/N 22445 Screw (2) 10-66863-1 P/N 22484 Stud (2) 16-56826 P/N 21892 Plug-exhaust elbow 22-41622 P/N 21248 Flange serrated nut (5) 11-46335 P/N 22482 Stud-Carburetor (2) 16-70236 P/N 21664 Washer- carburetor (5) 12-20084 P/N 19354 Lock nut carburetor (5) 11-25594 P/N 51160 Exhaust elbow assembly 12076A2 P/N 89120 Bellow 4" 32-44348T P/N 01100 Clamp bellow 4" 54-815504372 P/N Exhaust elbow assembly 76325A2 P/N 22446 Screw-(2) 10-72094 P/N 22447 Screw-(2) 10-34354 P/N 21893 Plug 22-32802-2 P/N 21887 Plug 22-36382 P/N 13984 Straight fitting 3/4-14 X1 22-807155
51210 exhaust manifold 51210 120-140 hp GM 153 181 4 cylinder years 1982-1995
51214 Mercruiser aftermarket manifold 1982-1995	P/N 51214 Exhaust manifold assembly OEM 806867A12 $333.95 Use with model 181 CID 4 cylinder GM marine engines years 1990 and after. 3.0 liter LX / 3.0 Liter OEM number 806867A12 120 and 140 horsepower GM motors Come with the following: P/N 33580 gaskets OEM 27-815528 P/N 31520 Gasket to Elbow OEM 27-99777-2 GLM Marine aftermarket parts that may be required: P/N 33580 Exhaust gaskets 27-815528 P/N 30920 Exhaust Gasket-End Cap 27-807218 *5 P/N 31520 Exhaust Gasket to Elbow 27-99777-2 *2 P/N 51020 End Cap 805629A1 P/N 51030 End Cap 73813A1 P/N 13980 Straight-Water Draining Contents 22-862557 P/N 13992 Drain Plug Kit 22-806608A1 P/N 80140 O-Ring 25-45253 *5 P/N 22443 Screw-End Cap 10-824941 *8 P/N 32180 Gasket-Carburetor Base 27-807982 P/N 21745 Screw 10-53728 *2 P/N 22475 Stud 16-806300 *3 P/N 13984 Straight Fitting 3/4-14 X 1 (Brass) P/N 21248 Flange Serrated Nut 11-46335 *5 P/N 51160 Exhaust Elbow Assembly 12076A2 P/N 22482 Stud-Carburetor 16-70236 *2 P/N 21664 Washer-Carburetor 12-20084 *5 P/N 19354 Locknut-Carburetor 11-25594 *5 P/N 22445 Screw 10-66863-1 *2 P/N 89120 Exhaust Bellow-Exhaust Elbow 4" 32-44348T P/N 01100 Clamp-Bellow 4" 54-815504372 P/N 21887 Plug 22-36382
51212 Mercruiser Exhaust 96705A1	P/N 51212 4 Cylinder GM 181 CID marine engine Years 1968 to 1982 Exhaust manifold assembly Includes all gaskets, studs/bolts, end caps and nuts Does not include elbow/riser OEM number 96705A1 $569.99 P/N 51212 Manifold set OEM number 96705A1 $308.00 Model 140 - in-line 4 Years 1968 to 1982 $569.99 GLM aftermarket parts you may need: P/N 51212 Exhaust manifold OEM number 96705A1 P/N 33570 Exhaust gaskets 27- 53354 P/N 33570 gaskets 27- 53354 P/N 30920 Gasket-End cap (5) 27- 807218 P/N 31520 Exhaust Gasket-to elbow (2) P/N 31490 Gasket end cap (5) 27-48043-1 P/N 31660 Exhaust Gasket carburetor base P/N 51030 End cap-contents Ref. 3 73813A1 P/N 22448 Screw-End cap (2) 10-25299 P/N 51010 End cap 60252A2 P/N 22449 Screw-End cap (6) 10-35386 P/N 22482 Stud-Carburetor (2) 16-70236 P/N 21664 Washer-Carburetor (5) 12-20084 P/N 51120 Exhaust elbow riser assembly 3" 90 degree angle 76351A2 P/N 51190 Exhaust elbow riser assembly 3" with 0 degree angle 76771A2
Mercruiser 4 cylinder manifold 1968-1982
4 cylinder 488 485 470	GLM aftermarket Mercruiser/Alpha One manifolds for 165 / 170 / 3.7 Liter / 180 / 190 / 470 / MCM 485 / 488 in-line 224 CID 4 cylinder engines years 1980 to 1989 Exploded view manifold parts including: P/N 31710 816219A5 Gasket P/N 32460 Gasket Flange P/N 32470 Gasket Flange P/N 22397 Mercruiser stainless steel screw P/N 22479 16-78438-5 Stud (3) P/N 21495 13-35048 Mercruiser lock-washer (4) P/N 21248 Flange serrated nut *5 11-46335 90880A2 Exhaust elbow and reservoir assembly P/N 51180 Exhaust elbow and reservoir assembly P/N 21748 10-78259 screw (4) P/N 30820 27-71614 Edit Text Gasket filler cap (5) P/N 21897 22-13234A1 Fitting kit filler hole P/N 80290 25-45257 O-ring filler base P/N 13890 36-13130 Cap P/N 13986 22-45084 Hose fitting P/N 13940 22-76170 Elbow fitting P/N 13930 22-99498 $10.89 Edit Text P/N 32100 27-89656-1 Gasket (5) P/N 13590 89659A3 Thermostat housing P/N 13590 15995 temperature sender P/N 21496 13-39107 Lock-washer (2) P/N 23233 10-73657 Screw (2) P/N 13830 15995 temperature sender P/N 21894 22-32803 plug P/N 13040 99155A1 Thermostat P/N 89070 3.7 exhaust bellow
32460 Gasket elbow reservoir
Manifolds for 6 Cylinder engines
51220 Mercruiser V6 Exhaust manifold 1983 up	P/N 51220 Assembly (iron casting) $299.99 Use with Mercruiser Models: 175 and 205 GM engines Years 1983 and up 229 and 262 CID GM motors Tuned design will reduce turbulence and enhance flow for higher and maximum engine power 3 inch 15 degree and 4 inch 7 degree elbows P/N 51220 Exhaust manifold breakdown drawing for the Chevy 4.3L V6 marine engine Center rise - cast iron Mercruiser OEM number 99746A17   Exploded view GLM Marine aftermarket Mercruiser parts that may be required: P/N 51225 assembly Aluminum black P/N 21892 22-41622 Plug Steel P/N 21896 22- 42861- 1 Plug Brass *2 P/N 32170 27- 99757 Gasket *2 units P/N 13990 22-806926A1 Hose fitting with drain plug kit P/N 30240 27-863724 Gasket - raw water cooling *2 P/N 30220 27-860231 Gasket - fresh water cooling *2 P/N 32080 27-863726 Gasket P/N 13991 22-86221A01 90 degree hose fitting P/N 13992 22-806608A1 Drain plug kit contents P/N 80140 25-45253 O-Ring *5 P/N 51110 98504A3 Exhaust elbow Iron casting 3" P/N 51115 Exhaust elbow Aluminum casting 3" 15 degree P/N 51140 807988A2 Exhaust elbow Iron casting 4" P/N 51145 Exhaust elbow Aluminum black 4" 7 degree P/N 51146 Exhaust elbow Aluminum platinum 4" 7 degree P/N 22391 16-49545 Stud Steel *4 P/N 22462 Stud stainless steel *4 P/N 50300 8074776A3 Spacer 3" Iron casting P/N 50305 Spacer 3" Aluminum casting P/N 50600 807477A2 Spacer 6" Iron casting P/N 50605 Spacer 6" Aluminum black P/N 22481 Stud 3/8 x 5 use with 3" elbow / 3" spacer P/N 22474 Stud 3/8 x 9-1/2 use 4" elbow / 3" spacer P/N 21494 Lock-washer Stainless steel for aluminum P/N 21248 11-46335 Nut flange serrated nut *5 P/N 21246 Nut stainless steel *2 P/N 21898 22-32802-2 Plug
51220 Manifold 51140 exhaust elbow 4 inch
Manifolds for 8 Cylinder engines
51230 Mercruiser V8 exhaust manifold 1983 up	P/N 51230 GLM aftermarket parts for 305, 350, 377 V8 GM small block marine engine Years 1982 and up Mercruiser OEM number 860246A10 Exhaust manifold iron casting assembly $289.99 Includes item numbers: P/N 21892 Plug 3/4-14 steel 2 units OEM number 22-41622 P/N 21896 Plug 3/4-14 brass P/N 31100 Gasket 2 units OEM number 27-33395 P/N 13990 Hose fitting with drain plug kit OEM number 22-806926A1 See exploded view drawing for parts you may require : 8 Cylinder Mercruiser Alpha One manifold Years 1983 to present P/N 30240 27-863724 exhaust Gasket *2 Raw water cooling P/N 30220 27-860231 exhaust Gasket *2 Fresh water cooling P/N 32080 27-863726 exhaust Gasket *2 P/N 13991 22-806926 90 Degree hose fitting P/N 13992 22-806608A1 Drain plug kit *5 Contents P/N 80140 25-45253 O Ring *5 P/N 51110 98504A3 Exhaust elbow *iron casting 3" 15 Degree P/N 51140 807988A2 Exhaust elbow *iron casting 4" 7 Degree P/N 22391 16-49545 Stud *4 - steel P/N 50300 807467A3 Spacer 3" iron casting P/N 50600 807477A2 Spacer 6" iron casting P/N 22474 Stud *4 3/8 x 9 1/2 use with 4" elbow P/N 22481 Stud *4 3/8 x 5 use with 3" elbow P/N 21493 13-35048 Lock-washer *10 P/N 21248 11-46335 Flange serrated nut *4 P/N 21898 22-32802-2 Plug *2 P/N 22381 10-43749 Screw steel zinc plated P/N 22379 22-73379 Plug *5 P/N 21745 10-53728 Screw *2 P/N 21899 Plug P/N 22355 10-12244 Screw *4
Manifold drawing GM 305-350 V8 1983 present
51030 Mercruiser big block end cap 51010 Mercruiser big block end cap	P/N 51264 Exhaust manifold port side for: 427, 454 and 482 cubic inch engines Years 1968 to 1986 V8 GM large block marine engine Mercruiser OEM number 47735A17 Exhaust manifold port side V8 GM big block has an extra 30% water cooling area this will help reduce temperature in port exit area for longer gasket life. The tunes design will reduce turbulence and enhance flow for higher and maximum marine engine power.  $425.95 P/N 51266 OEM 47736A17 starboard $496.95 427, 454 and 482 cubic inch engines Years 1968 to 1986 V8 GM large block marine engine Mercruiser OEM number 47735A17 starboard side V8 GM big block has an extra 30% water cooling area this will help reduce temperature in port exit area for longer gasket life. The tunes design will reduce turbulence and enhance flow for higher and maximum marine engine power.  Models 325 / 330 / 350 and 400 for GM engines 427 / 454 / 482 cubic inch V8 years 1968 to 1986. P/N 51264 Port side and P/N 51266 starboard side. GLM Marine aftermarket parts: P/N 51264 Port side Mercruiser OEM number 47735A17 P/N 51266 Starboard side Mercruiser OEM number 47736A17 P/N 33760 27-46820 Gasket *2 P/N 31490 27-48043-1 Gasket end cap *5 P/N 31480 27-48042 Gasket exhaust elbow *2 P/N 51010 60252A2 End cap P/N 51030 73813A1 End cap P/N 22449 10-35386 Mercruiser screws 8 units P/N 51196 Exhaust elbow Not available yet P/N 51194 Exhaust elbow Not available yet P/N 22391 Mercruiser OEM number 16-49545 Stud 4 units P/N 21248 11-49838 Flange serrated nut *5
51264 port 51266 starboard
51240 Mercruiser model 330-370 manifold 1981 up	P/N 51240 OEM 807078A6 Exhaust manifold assembly (cast iron) $319.99 Mercruiser models 330-370 manifold years 1981 up 21892 Plug (steel) OEM number 22-41622 21896 Plug (brass) 22-428611 33760 Gasket exhaust manifold 27-46820 13990 Hose fitting with drain plug kit OEM number 22-806926A1 13991 90 Degree hose Fitting 22-806926 - 13992 Drain plug kit 22-806608A02 80140 0-ring 25-45253 12693 Aluminum pencil anode kit N/A 12694 Aluminum anode N/A 21895 Plug N/A P/N 51110 OEM 98504A3 Exhaust Elbow (Iron Casting) 3", 15 Degree models 330-370 manifold years 1981 up $197.99
51110 Riser 98504A3
51245 Aluminum manifold	P/N 51245 OEM N/A Manifold assembly (aluminum - black) $370.95 Models 330-370 manifold years 1981 up 21892 Plug (steel) OEM number 22-41622 21896 Plug (brass) 22-428611 33760 Gasket exhaust manifold 27-46820 13990 Hose fitting with drain plug kit OEM number 22-806926A1 13991 90 Degree hose Fitting 22-806926 - 13992 Drain plug kit 22-806608A02 80140 0-ring 25-45253 12693 Aluminum pencil anode kit N/A 12694 Aluminum anode N/A 21895 Plug N/A P/N 51115 OEM N/A Exhaust Elbow (aluminum) 3", 15 Degree $233.15
51110 Manifold Riser Chevy V6-V8

GLM Marine aftermarket exhaust manifold mounting gasket
31570 Gasket	Exhaust Manifold Mounting Gasket P/N 31570 GM 181 3.0L CID OEM 27-53354 $7.95
31101	P/N 31101 OEM CHV-47-0000 Barr Style $8.95
31710	Mercruiser 224 cubic inch 3.7 litre engine manifold gasket for models 165, 170, 180, 190 and 470-MCM 485/488 Years 1980 to 1989 P/N 31710 OEM 27-68715 $8.95
31440	P/N 31440 OEM 27-46401 GM 250 cubic inch 4.1 Litre $10.95
32170	P/N 32170 GM 262 4.3 Liter CID (2 units) $17.99
32580	P/N 33580 OEM 27-815528 GM 181 3.0L X CID $11.95
31100 OEM 27-33395 GM 305-350 cubic inch 5.0-5.7 litre	P/N 31100 OEM 27-33395 GM 305 / 350 cubic inch 5.0 and 5.7 litre Chevy engines 2 units $27.99
33790	P/N 33790 Exhaust Manifold Mounting Gasket OEM 27-73866 Ford 302/351 5.0/5.8L CID 2 units $11.95
33760	P/N 33760 Exhaust Manifold Mounting Gasket OEM 27-46820 GM 454 / 502 7.4 and 8.2 liter CID 2 units $23.95
31550 Gasket OEM 27-52546 GM 153 CID 2.5 liter	P/N 31550 Exhaust Manifold Mounting Gasket OEM 27-52546 GM 153 CID 2.5 liter $12.95
33570 Gasket 2.5-3.0 liter 1983 to 1995	P/N 33570 Manifold Mounting Gasket (1 unit) OEM 27-96429 GM 153/181 2.5/3.0 liter CID $14.99
30240	Item 5 P/N 30240 / 27-863724 Gasket (2) - raw water cooling $11.99
32180 Mercruiser Base	P/N 32180 Gasket-Carburetor Base 27-807982 $4.89 4 Cylinder models: 153 and 181 GM marine engines years 1982 to 1995 120 and 140 horsepower GM motors
31520 Gasket	P/N 31520 Gasket to elbow or adaptor (2 units) OEM 27- 99777- 2 $4.89 4 Cylinder models: 153 and 181 GM marine engines Years 1982 to 1995 120 and 140 horsepower GM motors
30220	Item 6 P/N 30220 / 27-860231 Gasket - fresh water cooling (2) $19.95
32080	Item 7 P/N 32080 / 27-863726 Gasket (2) $11.95
Manifold or engine drain plugs
13990 Drain plug	Item 4 P/N 13990 Drain plug for V6 exhaust manifold assemblies. / 22-806926A1 Hose fitting with drain plug kit Contents-Ref. 8,9,10 $8.95
21892 Plug	Item 13 P/N 21892 Plug-Exhaust Elbow 22-41622 $4.89
21887	Item 25 P/N 21887 Plug 22-36382 $4.89
21893	Item 24 P/N 21893 Plug 22-32802-2 $4.89
89090 Lower tube	Lower engine exhaust manifold bellows 3 inch elbow to 3 inch Y-pipe Including: P/N 89090 replaces Mercruiser OEM part number 32-90949T works with model 120/140 years 1982 - 1995 Chevy 305 / 350 / 377 big block 454 / 502 and V6 229 / 262 (1981 up to serial numbers that start with 0M 3 inch diameter part installs between the riser and the Y pipe

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