Sierra / Mallory

Key Features:

• Volvo GM Small Block V8 305-350 cu.in.

Additional Details:

• Models: AQ & BB200, 205, 211, 231, 225, 260, 271, 290, 311, 500, 501, 570, 571 & 572

Use With:

• 18-1935-1: Riser

Interchanges/Replaces

Mallory

• 9-40972

Osco

• 56879-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
NSS	Volvo Penta 959796	2	Bolt, Zinc 5/16-18 x 5 1/2 Grade	No Image	N/A
18-4236	GLM 21725 Volvo Penta 941907	4	Washer
18-2971-1	Barr VO47-835908 GLM 35080 Mallory 9-65800 Osco 35908 Volvo Penta 835908 856039 857618	1	Exhaust Manifold Gasket		N/A

Use With:

• 18-1971: Elbow
• 18-1978: Elbow

Interchanges/Replaces

Barr

• MC20-60426P

GLM

• 53100

Mallory

• 9-40170
• 9-40586

Osco

• 6371-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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
NSS	Mercruiser Stern Drive 11-49838	4	Nut	No Image	N/A
NSS	Mercruiser Stern Drive 13-35048	4	Lockwasher	No Image	N/A
NSS	Mercruiser Stern Drive 16-49545	4	Stud	No Image	N/A

Additional Details:

• Description: Open

Use With:

• 18-1907: Riser
• 18-1939: Riser
• 18-1999: Manifold Elbow
• 18-1971: Elbow

Interchanges/Replaces

Barr

• 20-0082-P

Mallory

• 9-40171

Osco

• 992-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2854-1	Barr 01-0107 GLM 36830 Mallory 9-65501 Osco 992-G	1	Exhaust Elbow Gasket		N/A
18-4258	Crusader 113186 GLM 21892 Mallory 9-41205 Mercruiser Stern Drive 22-33198 22-33198A1 22-41622 22-46754 Osco 1016012	1	Pipe Plug		N/A

Additional Details:

• I.D.: 95mm
• Length: 160mm

Interchanges/Replaces

Mallory

• 9-42700

Volvo Penta

• 834751

Additional Details:

• I.D.: 4"

Interchanges/Replaces

GLM

• 89222

Mallory

• 9-72800
• 9-72814

OMC Stern Drive

• 3852741
• 911741
• 913591

Volvo Penta

• 3852741
• 3863450

Additional Details:

• I.D.: 4"

Interchanges/Replaces

GLM

• 89230

Mallory

• 9-72801

OMC Stern Drive

• 3852742
• 912376
• 913592

Volvo Penta

• 3852742

Additional Details:

• I.D.: 4"

Interchanges/Replaces

GLM

• 89224

Mallory

• 9-72802

OMC Stern Drive

• 3852696
• 913405

Volvo Penta

• 3852696

Interchanges/Replaces

GLM

• 33080

Johnson/Evinrude Outboard

• 325721

Additional Details:

• For: 5, 5.5, 6 HP

Interchanges/Replaces

GLM

• 33170

Johnson/Evinrude Outboard

• 306205
• 313065

Interchanges/Replaces

Johnson/Evinrude Outboard

• 304314

Interchanges/Replaces

GLM

• 85630

Mercury Marine

• 37721
• 37721001

Interchanges/Replaces

GLM

• 85830

Johnson/Evinrude Outboard

• 320936

Interchanges/Replaces

GLM

• 86210

Johnson/Evinrude Outboard

• 324937

Key Features:

• Dry Joint Style

Additional Details:

• Fits: MCM/MIE GM V-8 (305, 350 & 377 cid) engines with dry joint exhaust (2002 & newer)

Use With:

• 18-1845: Exhaust Elbow
• 18-0720: Riser Gasket (Closed)
• 18-0721: Riser Gasket (Open)
• 18-0722: Riser Gasket (Restricted)
• 18-2949: Exhaust Manifold Gasket

Interchanges/Replaces

Mercruiser Stern Drive

• 864308T01
• 865049T01
• 865735A02

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
18-4224	GLM 13990 Mallory 9-41200 Mercruiser Stern Drive 22-806926A1 22-862210A01	1	Drain Elbow Assembly		N/A
NSS	Mercruiser Stern Drive 10-52143	4	Bolt	No Image	N/A

Interchanges/Replaces

GLM

• 33680

Johnson/Evinrude Outboard

• 323469

Additional Details:

• Fits: MCM 3.0L (1998 & Newer) & MCM 3.0LX (1990-1997)

Interchanges/Replaces

GLM

• 33580

Mallory

• 9-61428

Mercruiser Stern Drive

• 27-815528

OMC Stern Drive

• 3853256
• 914518

Volvo Penta

• 3853256

Additional Details:

• Fits: MCM 140 (1968-1982)

Interchanges/Replaces

Barr

• MC47-27-53354
• OMC47-908079

GLM

• 31570

Mallory

• 9-61417

Mercruiser Stern Drive

• 27-53354

OMC Stern Drive

• 908079

Additional Details:

• Fits: Ford 460 CID
• Fits: MCM 3.7L engines

Interchanges/Replaces

Chrysler Inboard

• 118-614

GLM

• 33800

Mallory

• 9-61418

Mercruiser Stern Drive

• 27-68715

OMC Stern Drive

• 912405

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:

• For: Mercury 15-25 Hp 2 cyl.

Interchanges/Replaces

Mercury Marine

• 27-41475
• 27-41475-8
• 27-414751
• 27-414752
• 27-414753
• 27-414754
• 27-414755
• 27-414756
• 27-414757
• 27-892158
• 27-92331