Sierra / Mallory

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

Interchanges/Replaces

Volvo Penta

• 1378913
• 461092

Interchanges/Replaces

Volvo Penta

• 824633
• 856044

Interchanges/Replaces

Volvo Penta

• 1266796
• 1378879
• 463225

Additional Details:

• For: Volvo 5.0L, GL, GXI, OSI, and 5.7L, GL, GI, GXI, GIL, GXIL, OSI, OSXI

Use With:

• 18-1997-1: Manifold
• 18-1986-1: Manifold
• 18-1902: Manifold
• 18-1903: Manifold

Interchanges/Replaces

Barr

• CHV470000
• OMC-47-909314

GLM

• 31101

OMC Inboard

• 909314

OMC Stern Drive

• 3852468
• 909314

Osco

• CV-GH

Volvo Penta

• 3852468

Key Features:

• GM V-6

Additional Details:

• Used with: 18-1952-1 manifold

Use With:

• 18-1932: Manifold
• 18-1952-1: Manifold

Interchanges/Replaces

Barr

• MC47-27-99757

Crusader

• 97498

GLM

• 32170

Mallory

• 9-61421

Mercruiser Stern Drive

• 27-99757

OMC Stern Drive

• 3853412
• 910157
• 915025

Osco

• CS-GH

Volvo Penta

• 3853412
• 856116

Yamaha Sterndrive

• YSC-12190-00-AC

Additional Details:

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

Use With:

• 18-1931-1: Manifold
• 18-1986-1: Manifold
• 18-1997-1: Manifold
• 18-1902: Manifold
• 18-1903: Manifold
• 18-1904: Manifold
• 18-1914: Manifold
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1953-2: Manifold

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

Interchanges/Replaces

GLM

• 33690

Johnson/Evinrude Outboard

• 324323

Interchanges/Replaces

Barr

• VO47855383

GLM

• 37100

Mallory

• 9-65801

Osco

• VO-GH

Volvo Penta

• 463846
• 855383
• 855967

Exhaust Manifold Gasket
Replaces: Merc 27-73866 / OMC 908717 / Volvo 3852455 & PCM
For: Ford 302/351 cid V8
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.

Additional Details:

• Fits: MCM GM V-8 (305, 327 & 350 cid) engines w/end outlet exhaust manifold

Interchanges/Replaces

Barr

• MC47-27-33395A2

GLM

• 39280

Mallory

• 9-61402

Mercruiser Stern Drive

• 27-33395A1
• 27-33395A2

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	4	Exhaust Elbow Gasket		N/A
18-0885-1	Barr MC472748042 GLM 31480 Mercruiser Stern Drive 27-48042	4	Exhaust Elbow Gasket
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	4	Manifold End Cap Gasket
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	2	Exhaust Manifold Gasket

Additional Details:

• For: 250 (4.1L) CID eng.; 165 hp s/n 2770032 & Up

Interchanges/Replaces

Barr

• MC47-27-46401A1

GLM

• 39270

Mallory

• 9-61404

Mercruiser Stern Drive

• 27-46401A1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0353	Barr MC47-27-58764 GLM 30510 Mallory 9-61005 Mercruiser Stern Drive 27-58764 Osco 58764	1	Carburetor Mounting Gasket		N/A
18-0356	GLM 31660 Mallory 9-61007 Mercruiser Stern Drive 27-32910 27-64692	1	Carburetor Mounting 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
18-2833	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	2	Manifold End Cap Gasket
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
NSS	Mercruiser Stern Drive 27-52945	1	Gasket, Carburetor Mounting	No Image	N/A

Additional Details:

• For: GM 175, 185, 205 (229 & 262 CID)

Interchanges/Replaces

GLM

• 39870

Mallory

• 9-61453

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	2	Exhaust Elbow Gasket		N/A
18-2909	Barr MC47-27-99757 Crusader 97498 GLM 32170 Mallory 9-61421 Mercruiser Stern Drive 27-99757 OMC Stern Drive 3853412 910157 915025 Osco CS-GH Volvo Penta 3853412 856116 Yamaha Sterndrive YSC-12190-00-AC	2	Exhaust Manifold Gasket		N/A

Additional Details:

• For: GM 200, 228, 230, 260, 898 (5.0 & 5.7L)

Interchanges/Replaces

GLM

• 39880

Mallory

• 9-61455

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	2	Exhaust Elbow Gasket		N/A
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	2	Exhaust Manifold Gasket

Additional Details:

• For: "CH" Model Big Block V8 Chevy 454 CID (7.4L)

Use With:

• 18-1929: Manifold
• 18-1933: Manifold

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0418	Barr CHVA470000 MC47-27-46820 Crusader 96653 GLM 33760 Mallory 9-61400 Mercruiser Stern Drive 27-46820 OMC Inboard 909613 OMC Stern Drive 3852472 909613 Osco CW-GH Volvo Penta 3852472	2	Exhaust Manifold Mounting Gasket		N/A
18-0309-1	Barr CR 47 C 96562 Crusader 96562 Mallory 9-65401 Osco 6562	2	Exhaust Elbow Gasket		N/A
18-0306-1	Crusader 96216	4	Elbow and Cup Gasket		N/A

Key Features:

• For: Ford 302/351 CID engine

Use With:

• 18-1998-1: Manifold

Interchanges/Replaces

GLM

• 39920

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	2	Exhaust Elbow Gasket		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	2	Exhaust Manifold Gasket		N/A

Key Features:

• For: GM 305/350 CID engine

Use With:

• 18-1997-1: Manifold

Interchanges/Replaces

GLM

• 39910

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	2	Exhaust Elbow Gasket		N/A
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	2	Exhaust Manifold Gasket		N/A

Additional Details:

• For: 318 CID Engines (1969-1985)

Interchanges/Replaces

Chrysler Inboard

• 3745220

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2941	Barr CM 1 6672D Chrysler Inboard 2469559 2847480 Mallory 9-65300 Osco 480	4	End Cap Gasket (Open)		N/A

Additional Details:

• For: GM 454, 525 (7.4L & 8.2L)

Interchanges/Replaces

GLM

• 39890

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0418	Barr CHVA470000 MC47-27-46820 Crusader 96653 GLM 33760 Mallory 9-61400 Mercruiser Stern Drive 27-46820 OMC Inboard 909613 OMC Stern Drive 3852472 909613 Osco CW-GH Volvo Penta 3852472	2	Exhaust Manifold Mounting Gasket		N/A
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	2	Exhaust Elbow Gasket		N/A

Additional Details:

• For: Ford 302/351 (5.0L & 5.8L) CID eng: All 888 (188 hp) & 233 hp, 255 hp s/n 3258728-4175498

Interchanges/Replaces

Barr

• MC47-27-54566A1

GLM

• 39310

Mercruiser Stern Drive

• 27-54566A1

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	4	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	4	Manifold End Cap Gasket		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	2	Exhaust Manifold Gasket		N/A