Key Features:

• Starboard Side
• Supplied with Mounting Package

Additional Details:

• Fits: MCM/MIE GM V-8 (305 & 350 cid) engines (1977-1982)

Use With:

• 18-2949: Exhaust Manifold Gasket
• 18-8548: Hardware Kit [Manifold Bolts]
• 18-1971: Elbow
• 18-1978: Elbow
• 18-4008: Block Off Plate
• 18-4009: Manifold End Plate
• 18-8520: Exhaust Manifold Mounting Kit
• 18-8554: Exhaust Elbow Mounting Kit
• 18-8556: Exhaust Elbow Mounting Kit
• 18-2832-1: Manifold End Cap Gasket
• 18-2832-1-9: Manifold End Cap Gasket (Priced Per Pkg of 2)

Interchanges/Replaces

Barr

• MC-1-77235

GLM

• 51238

HGE

• 7235

Mallory

• 9-40504

Mercruiser Stern Drive

• 77235A2
• 77235A8

Osco

• 7235B

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2949	Barr CHV-47-000 MC 47 27 33395 Crusader 96306 GLM 31100 Mercruiser Stern Drive 27-33395 27-33395B Osco CV-GH Volvo Penta 835966 856034	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
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

Additional Details:

• Fits: MCM 898, 228, 250, 260 & Ford V-8 engines

Use With:

• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1958-1: Manifold
• 18-1962-1: Manifold
• 18-1971: Elbow
• 18-1978: Elbow

Interchanges/Replaces

Barr

• MC-20-60207

GLM

• 50006

Mallory

• 9-40540

Mercruiser Stern Drive

• 60207

Osco

• 60207

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

Additional Details:

• Application: V-8 inboard applications only

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
• 18-2833: Exhaust Elbow Gasket
• 18-4362: Exhaust Elbow Mounting Package
• 18-1906: Manifold Spacer
• 18-4008: Block Off Plate
• 18-8514: Exhaust Elbow Mounting Kit
• 18-8554: Exhaust Elbow Mounting Kit
• 18-1956-3: Manifold

Interchanges/Replaces

Barr

• MC-20-76771

GLM

• 51190

Mallory

• 9-40556

Mercruiser Stern Drive

• 53779A1
• 53779A2
• 60427A2
• 76771A2
• 76771A3

Osco

• 6771

Additional Details:

• Fits: MCM 140 (1966-1982), 470 (1976-1977), 165 & 200 in-line 6 cyl.
• Fits: MCM Ford V-8 engines & MCM GM V-8 (305 & 350 cid) engines (1982 & older)

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
• 18-2833: Exhaust Elbow Gasket
• 18-4362: Exhaust Elbow Mounting Package
• 18-4364: Exhaust Elbow Mounting Package (Open)
• 18-1906: Manifold Spacer
• 18-4008: Block Off Plate
• 18-8514: Exhaust Elbow Mounting Kit
• 18-8554: Exhaust Elbow Mounting Kit
• 18-1956-3: Manifold

Interchanges/Replaces

Barr

• MC 20 76351
• MC-20-60426

GLM

• 51120

HGE

• 6351

Mallory

• 9-40558

Marine Power

• 0993-001

Mercruiser Stern Drive

• 49964A1
• 49964A2
• 60426A1
• 76351A04
• 76351A1
• 76351A2

Osco

• 6351

Additional Details:

• For: Mercruiser GM Small Block V-8 305-350 cu. in. (models 198, 200, 228, 230, 260 & 898)

Use With:

• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1953-2: Manifold

Interchanges/Replaces

Mallory

• 9-40573

Osco

• 7214-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2949	Barr CHV-47-000 MC 47 27 33395 Crusader 96306 GLM 31100 Mercruiser Stern Drive 27-33395 27-33395B Osco CV-GH Volvo Penta 835966 856034	1	Exhaust Manifold Gasket		N/A
NSS	Mercruiser Stern Drive 10-52143	4	Screw	No Image	N/A

Additional Details:

• For: 229 & 262 ci V-6, 305 & 350 SB V-8, 454 Big Block V-8

Use With:

• 18-1906: Manifold Spacer
• 18-1908: Manifold Riser Spacer
• 18-1908K: Manifold Riser Spacer Kit
• 18-1951-1: Manifold
• 18-1952-1: Manifold
• 18-1953-2: Manifold
• 18-1971: Elbow
• 18-1978: Elbow
• 18-2849-1: Exhaust Elbow Gasket
• 18-1970-2: Riser Elbow
• 18-1957-2: Manifold

Interchanges/Replaces

GLM

• 53330

Mallory

• 9-40582

Osco

• 3320-MK
• 6371-MK-SP

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0897	Barr MC 20 99208 MC47-27-41813 GLM 30240 Mallory 9-61413 Mercruiser Stern Drive 27-41813 27-860233 27-863724 Osco 8503-GR	1	Exhaust Elbow Gasket		N/A
18-2849-1	Barr MC 47 27 87105 GLM 32080 Mallory 9-61414 Mercruiser Stern Drive 27-818832 27-860232 27-863726 27-87105 27-871051 Osco 8503-GO	1	Exhaust Elbow Gasket		N/A

Additional Details:

• Fits: MCM/MIE GM V-8 (283, 305, 350 & 377 cid) engines

Use With:

• 18-1902: Manifold
• 18-1903: Manifold
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1931-1: Manifold
• 18-1951-1: Manifold
• 18-1986-1: Manifold
• 18-1997-1: Manifold
• 18-1950-1: Manifold
• 18-1953-2: Manifold
• 18-8502: Exhaust Manifold Mounting Kit

Interchanges/Replaces

Barr

• CHV-47-000
• MC 47 27 33395

Crusader

• 96306

GLM

• 31100

Mercruiser Stern Drive

• 27-33395
• 27-33395B

Osco

• CV-GH

Volvo Penta

• 835966
• 856034

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