Key Features:

• For: 140 HP & 3.0L (1973-88)

Interchanges/Replaces

GLM

• 39820

Mallory

• 9-61100

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2946	Chris-Craft 16.50-00204 GLM 36150 Mallory 9-63700 Mercruiser Stern Drive 27-52364 27-810841 FI5000204 OMC Stern Drive 0914812 3853336 908611 913274 Volvo Penta 3853336 908611	1	Head Gasket		N/A
18-0347	GLM 32210 Mallory 9-61317 Mercruiser Stern Drive 27-34041 27-52145 27-806452 27-851040 OMC Stern Drive 3852693 912981 913277 Volvo Penta 3852693	1	Valve Cover Gasket		N/A
18-2875-1	Barr OMC47908013 GLM 33770 Mallory 9-65100 OMC Stern Drive 3850495 908013 Osco 0188-G Volvo Penta 3850495	1	Exhaust Elbow Gasket		N/A
18-0889	Chris-Craft 16.50-00074 GLM 31360 Mallory 9-61041 Mercruiser Stern Drive 27-34213 27-56883 FI5000074 OMC Stern Drive 311064 3852095 Pleasurecraft 3705042 Volvo Penta 3852095 Yamaha Sterndrive YSG-10114-14-1G	1	Fuel Pump Gasket		N/A
18-2861-1	Barr OMC47311121 GLM 33330 OMC Stern Drive 311121	3	Manifold End Cap Gasket
18-0327	GLM 31350 Mallory 9-60067 Mercruiser Stern Drive 27-33956 27-810848 27-879150138 FI5000200 FI5000219 OMC Stern Drive 311851 3853342 914819 Volvo Penta 3853342	1	Water Pump Gasket		N/A
18-0164	GLM 31340 Mallory 9-60074 Mercruiser Stern Drive 27-8146801 OMC Stern Drive 311069 3789161 3852096 Volvo Penta 3852096 Yamaha Sterndrive GM 3789161 YSC-13080-00-0C	1	Thermostat Housing Gasket		N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-0114-1	Barr OMC47907761 GLM 32580 OMC Stern Drive 907761	1	Manifold End Gasket		N/A
18-2912-1	Barr MC47-27-53354 OMC47-908079 GLM 31570 Mallory 9-61417 Mercruiser Stern Drive 27-53354 OMC Stern Drive 908079	1	Exhaust Manifold Gasket		N/A
18-0937	Barr OMC47315055 GLM 34700 OMC Stern Drive 315055	1	Carburetor Mounting Gasket		N/A
18-2858	Barr OMC47314809 GLM 33440 Mallory 9-60016 OMC Stern Drive 314809 3852127 Volvo Penta 3852127	1	Thermostat Gasket		N/A
18-0887	GLM 30360 Mallory 9-61602 Mercruiser Stern Drive 27-34216 27-49953 FI5000201 OMC Stern Drive 3852691 912988 913275 Volvo Penta 3852691 Yamaha Sterndrive YSG-14096-15-6G	1	Timing Cover Gasket		N/A
NSS	OMC Stern Drive 913278	1	Gasket, Oil Pan	No Image	N/A
NSS	OMC Stern Drive 912958 3852658	1	Gasket, Pump Cover	No Image	N/A

Additional Details:

• For: GM 153 (2.5L) CID Eng; s/n 2324347 & Up

Use With:

• 18-3880: Head Gasket

Interchanges/Replaces

GLM

• 39050

Mallory

• 9-61103

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3880	GLM 36130 Mallory 9-63704 Mercruiser Stern Drive 27-34273 27-342731 OMC Stern Drive 311210	1	Head Gasket		N/A
18-0347	GLM 32210 Mallory 9-61317 Mercruiser Stern Drive 27-34041 27-52145 27-806452 27-851040 OMC Stern Drive 3852693 912981 913277 Volvo Penta 3852693	1	Valve Cover Gasket		N/A
18-0327	GLM 31350 Mallory 9-60067 Mercruiser Stern Drive 27-33956 27-810848 27-879150138 FI5000200 FI5000219 OMC Stern Drive 311851 3853342 914819 Volvo Penta 3853342	1	Water Pump Gasket		N/A
18-0328	GLM 30100 Mercruiser Stern Drive 27-34208	1	Push Rod / Lifter Cover Gasket		N/A
18-0887	GLM 30360 Mallory 9-61602 Mercruiser Stern Drive 27-34216 27-49953 FI5000201 OMC Stern Drive 3852691 912988 913275 Volvo Penta 3852691 Yamaha Sterndrive YSG-14096-15-6G	1	Timing Cover Gasket		N/A
18-0466	GLM 39470 Mallory 9-61509 Mercruiser Stern Drive 27-14901 27-14901A1 27-52144 OMC Stern Drive 3923440	1	Oil Pan Gasket Set		N/A
18-0356	GLM 31660 Mallory 9-61007 Mercruiser Stern Drive 27-32910 27-64692	1	Carburetor Mounting Gasket		N/A
18-0994	Barr MC472770143 GLM 32180 Mallory 9-61011 Mercruiser Stern Drive 27-70143 27-701431 27-70143B1 27-807982 27-8079821 27-807982B	1	Carburetor Mounting Gasket		N/A
18-0889	Chris-Craft 16.50-00074 GLM 31360 Mallory 9-61041 Mercruiser Stern Drive 27-34213 27-56883 FI5000074 OMC Stern Drive 311064 3852095 Pleasurecraft 3705042 Volvo Penta 3852095 Yamaha Sterndrive YSG-10114-14-1G	1	Fuel Pump Gasket		N/A
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	1	Manifold End Cap Gasket		N/A
18-0928-1	Barr MC472773814 GLM 30920 Mercruiser Stern Drive 27-73814 27-738141 27-807218	1	Gasket, Manifold End Cap		N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-2833	Barr MC472799777 GLM 31520 Mallory 9-61407 Mercruiser Stern Drive 27-52076 27-99777 27-997771 27-997772 27-99777B2 Osco 52076	1	Exhaust Elbow Gasket		N/A
18-0164	GLM 31340 Mallory 9-60074 Mercruiser Stern Drive 27-8146801 OMC Stern Drive 311069 3789161 3852096 Volvo Penta 3852096 Yamaha Sterndrive GM 3789161 YSC-13080-00-0C	1	Thermostat Housing Gasket		N/A
18-2831	Barr MC472747590 GLM 31430 Mallory 9-60012 Mercruiser Stern Drive 27-47590 27-475901 27-47590B1	1	Thermostat Cover Gasket		N/A
18-2896-1	Barr MC472752546 GLM 31550 Mallory 9-61426 Mercruiser Stern Drive 27-32816 27-52546 OMC Stern Drive 311068 Osco CY4-GH	1	Exhaust Manifold Gasket		N/A
18-2819-1	Barr MC472739915 GLM 31410 Mallory 9-61423 Mercruiser Stern Drive 27-39915 Osco 5538-G	1	Exhaust Elbow Gasket		N/A
9-61408	Mercruiser Stern Drive 27-39917	1	GASKET,END CAP TO MANIFOLD		N/A
18-1210-1	Barr MC472739923 GLM 31420 Mallory 9-61409 Mercruiser Stern Drive 27-39923 Osco 52076	1	End Cap to Manifold Gasket		N/A
NSS	Mercruiser Stern Drive 12-73812	1	Gasket, End Cap	No Image	N/A
NSS	Mercruiser Stern Drive 27-35898 27-35898T	1	Gasket, Intake Manifold	No Image	N/A
NSS	Mercruiser Stern Drive 27-34460	1	Gasket, Oil Pump Cover	No Image	N/A
NSS	Mercruiser Stern Drive 27-32815	1	Gasket, Choke Oven Cover	No Image	N/A

Key Features:

• For: 110, 120 HP & 2.5L (1965-86)

Interchanges/Replaces

GLM

• 39810

Mallory

• 9-61105

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3880	GLM 36130 Mallory 9-63704 Mercruiser Stern Drive 27-34273 27-342731 OMC Stern Drive 311210	1	Head Gasket		N/A
18-2858	Barr OMC47314809 GLM 33440 Mallory 9-60016 OMC Stern Drive 314809 3852127 Volvo Penta 3852127	1	Thermostat Gasket		N/A
18-0164	GLM 31340 Mallory 9-60074 Mercruiser Stern Drive 27-8146801 OMC Stern Drive 311069 3789161 3852096 Volvo Penta 3852096 Yamaha Sterndrive GM 3789161 YSC-13080-00-0C	1	Thermostat Housing Gasket		N/A
18-0104	GLM 33930 OMC Stern Drive 907764	1	Exhaust Elbow Gasket		N/A
18-2861-1	Barr OMC47311121 GLM 33330 OMC Stern Drive 311121	3	Manifold End Cap Gasket
18-0114-1	Barr OMC47907761 GLM 32580 OMC Stern Drive 907761	1	Manifold End Gasket		N/A
18-0466	GLM 39470 Mallory 9-61509 Mercruiser Stern Drive 27-14901 27-14901A1 27-52144 OMC Stern Drive 3923440	1	Oil Pan Gasket Set		N/A
18-0889	Chris-Craft 16.50-00074 GLM 31360 Mallory 9-61041 Mercruiser Stern Drive 27-34213 27-56883 FI5000074 OMC Stern Drive 311064 3852095 Pleasurecraft 3705042 Volvo Penta 3852095 Yamaha Sterndrive YSG-10114-14-1G	1	Fuel Pump Gasket		N/A
18-2896-1	Barr MC472752546 GLM 31550 Mallory 9-61426 Mercruiser Stern Drive 27-32816 27-52546 OMC Stern Drive 311068 Osco CY4-GH	1	Exhaust Manifold Gasket		N/A
18-0937	Barr OMC47315055 GLM 34700 OMC Stern Drive 315055	1	Carburetor Mounting Gasket		N/A
NSS	OMC Stern Drive 3923472	1	Gasket, Front Crankcase Cover	No Image	N/A
NSS	OMC Stern Drive 3923469	1	Gasket, Push Rod Cover	No Image	N/A
NSS	OMC Stern Drive 3789970	1	Gasket, Pump Cover	No Image	N/A
NSS	OMC Stern Drive 3788478	1	Gasket, Water Pump	No Image	N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-2875-1	Barr OMC47908013 GLM 33770 Mallory 9-65100 OMC Stern Drive 3850495 908013 Osco 0188-G Volvo Penta 3850495	1	Exhaust Elbow Gasket		N/A
NSS	OMC Stern Drive 311552	1	Gasket	No Image	N/A

Key Features:

• Supplied with mounting package

Additional Details:

• Fits: Most late model 2.5L 153 cid & 3.0L 181 cid w/Rochester carb 5 bolt pattern (1983-89)

Use With:

• 18-4009: Manifold End Plate
• 18-1971: Elbow
• 18-1972: Elbow
• 18-1975-1: Riser With Exhaust Tube
• 18-1978: Elbow
• 18-5021: End Plate
• 18-1204-1: Exhaust Manifold Mounting Gasket
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• MC 1 95862

GLM

• 51214

Marine Power

• 0993-000

Mercruiser Stern Drive

• 95862A5

Osco

• 5862

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-5021	Mercruiser Stern Drive 805629 Osco 5629	1	End Plate		N/A
18-4009	Barr 160252 GLM 51010 Mallory 9-40541 Mercruiser Stern Drive 52999 60252 60252A2 Osco 60252	1	Manifold End Plate		N/A
18-2833	Barr MC472799777 GLM 31520 Mallory 9-61407 Mercruiser Stern Drive 27-52076 27-99777 27-997771 27-997772 27-99777B2 Osco 52076	1	Exhaust Elbow Gasket		N/A
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	1	Manifold End Cap Gasket		N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-0928-1	Barr MC472773814 GLM 30920 Mercruiser Stern Drive 27-73814 27-738141 27-807218	1	Gasket, Manifold End Cap		N/A
18-4263	Chrysler/Force/US Marine 22-328021 22-328022 F700633 FI5810151 GLM 21893 Mercruiser Stern Drive 22-32802 22-328021 22-328022 22-841908 Mercury Marine 22-30139 22-32802 22-328021 22-328022	1	Pipe Plug		N/A
18-4257		1	Pipe Plug		N/A

Key Features:

• Supplied with mounting package

Additional Details:

• Fits: MCM 140 (1982 & older)

Use With:

• 18-4009: Manifold End Plate
• 18-8549: Hardware Kit [Manifold Bolts]
• 18-1971: Elbow
• 18-1972: Elbow
• 18-1975-1: Riser With Exhaust Tube
• 18-1978: Elbow
• 18-5021: End Plate
• 18-1204-1: Exhaust Manifold Mounting Gasket
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• MC 1 96705

GLM

• 51212

Mercruiser Stern Drive

• 52390A1
• 96705A1

Osco

• 6705

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-4009	Barr 160252 GLM 51010 Mallory 9-40541 Mercruiser Stern Drive 52999 60252 60252A2 Osco 60252	1	Manifold End Plate		N/A
18-1990	Barr 1-73813 GLM 51030 Mercruiser Stern Drive 48045 54870 73813 73813A1 73813F1	1	Manifold Block Off Plate		N/A
18-2833	Barr MC472799777 GLM 31520 Mallory 9-61407 Mercruiser Stern Drive 27-52076 27-99777 27-997771 27-997772 27-99777B2 Osco 52076	1	Exhaust Elbow Gasket		N/A
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	1	Manifold End Cap Gasket		N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-0928-1	Barr MC472773814 GLM 30920 Mercruiser Stern Drive 27-73814 27-738141 27-807218	1	Gasket, Manifold End Cap		N/A
18-4257		1	Pipe Plug		N/A
18-4263	Chrysler/Force/US Marine 22-328021 22-328022 F700633 FI5810151 GLM 21893 Mercruiser Stern Drive 22-32802 22-328021 22-328022 22-841908 Mercury Marine 22-30139 22-32802 22-328021 22-328022	1	Pipe Plug		N/A