Use With:

• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1958-1: Manifold
• 18-1960-1: Manifold
• 18-1962-1: Manifold
• 18-8512: Exhaust Manifold Mounting Kit
• 18-1954-1: Manifold
• 18-1955-1: Manifold
• 18-1956-3: Manifold
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• 160252

GLM

• 51010

Mallory

• 9-40541

Mercruiser Stern Drive

• 52999
• 60252
• 60252A2

Osco

• 60252

Key Features:

• Supplied with mounting package
• Port Side

Additional Details:

• Fits: MCM/MIE Ford V-8 engines (1977 & older)

Use With:

• 18-1906: Manifold Spacer
• 18-1971: Elbow
• 18-1978: Elbow
• 18-4008: Block Off Plate
• 18-4009: Manifold End Plate
• 18-0897: Exhaust Elbow Gasket
• 18-2849-1: Exhaust Elbow Gasket
• 18-0183-1: Exhaust Manifold Gasket
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• MC-1-65604

GLM

• 51250

Mallory

• 9-40502

Mercruiser Stern Drive

• 54100A1
• 54100A5
• 65604A12
• 65604A4

Osco

• 5604

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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
18-0183-1	Barr FM 47 0000 MC47-27-73866 GLM 33790 Mallory 9-61420 Mercruiser Stern Drive 27-54566 27-73866 OMC Stern Drive 3852455 3853742 908717 916262 Osco FL-GH Pleasurecraft RM0007 Volvo Penta 3852455 3853742	1	Exhaust Manifold Gasket		N/A
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	2	Manifold End Cap 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

Additional Details:

• For: Mercruiser GM 4 cyl. 181 cu. in. (models 120, 140, 2.5L & 3.0L)
• For: GM Inline 6 cyl.250-292 cu. in. (models 165 & 200)
• For: Ford Small Block V-8302-350 cu. in. (models 215, 225, 233 255 & 888)
• For: GM Small Block V-8 305, 350 cu. in. (models 198, 228 & 898)

Use With:

• 18-4009: Manifold End Plate

Interchanges/Replaces

Mallory

• 9-40570

Osco

• 60252-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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

Key Features:

• Supplied with Mounting Package

Additional Details:

• Fits: Most Mercruiser (GM) in-line 6 cyl. engines

Use With:

• 18-8531: Exhaust Manifold Mounting Kit
• 18-0353: Carburetor Mounting Gasket
• 18-1971: Elbow
• 18-1972: Elbow
• 18-1978: Elbow
• 18-4009: Manifold End Plate
• 18-2830-1: Exhaust Manifold Gasket
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• MC 1 58759

GLM

• 51224

HGE

• 8759

Mallory

• 9-40500

Mercruiser Stern Drive

• 52073A1
• 52969A1
• 58759A1
• 58759A10
• 58759A13
• 58759A14

Osco

• 8759

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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
18-4256	Mallory 9-40545	1	Pipe Plug		N/A
18-2830-1	Barr MC47-27-46401 GLM 31440 Mallory 9-61416 Mercruiser Stern Drive 27-33121 27-46401 27-52584 879036 OMC Stern Drive 907932 Osco CY6-GH	1	Exhaust Manifold 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
18-0928-1	Barr MC472773814 GLM 30920 Mercruiser Stern Drive 27-73814 27-738141 27-807218	1	Gasket, Manifold End Cap		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

Additional Details:

• Fits: MCM 120, 140, 165 (in-line 6 cyl.)& Ford & GM V-8 engines

Use With:

• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1954-1: Manifold
• 18-1955-1: Manifold
• 18-1958-1: Manifold
• 18-1960-1: Manifold
• 18-1962-1: Manifold
• 18-4009: Manifold End Plate
• 18-1956-3: Manifold

Interchanges/Replaces

Barr

• MC47-27-48043

GLM

• 31490

Mallory

• 9-61424

Mercruiser Stern Drive

• 27-48043
• 27-480431

Osco

• 48043

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