Cooling Systems - Riser and Elbow

Key Features:

• 3" Outlet

Additional Details:

• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1916: Riser
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1927: Riser
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8515: Exhaust Manifold Mounting Kit
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 98068

Crusader

• 98068

Mallory

• 9-40417

Osco

• 8068

Additional Details:

• Fits: Most early Model 120hp Mercruiser applications

Use With:

• 18-8508: Exhaust Manifold Mounting Kit
• 18-2819-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• MC-20-55538

Mallory

• 9-40553

Mercruiser Stern Drive

• 39920
• 39920A1
• 55538A2

Osco

• 5538

Key Features:

• Comes with 18-0897 gasket and brass plugs

Additional Details:

• Fits: V-6 & V-8 applications 0° (3" O.D. Riser)

Use With:

• 18-0672: Exhaust Elbow Gasket
• 18-0897: Exhaust Elbow Gasket
• 18-2849-1: Exhaust Elbow Gasket
• 18-8529: Exhaust Elbow Mounting Kit
• 18-1953-2: Manifold
• 18-8554: Exhaust Elbow Mounting Kit
• 18-1957-2: Manifold

Interchanges/Replaces

Barr

• MC-20-98502

GLM

• 51192

Mallory

• 9-40554

Mercruiser Stern Drive

• 98502A2

Osco

• 8502

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

Additional Details:

• Fits: Chrysler Model 273, 318, 340 & 360 CID engines (1966-1986)

Use With:

• 18-1940: Manifold
• 18-2941: End Cap Gasket (Open)
• 18-4360: Exhaust Elbow Mounting Package
• 18-4361: Exhaust Elbow Mounting Package (Open)
• 18-8506: Exhaust Elbow Mounting Kit
• 18-2941-9: End Cap Gasket (Priced Per Pkg of 2)
• 18-0472-1: Exhaust Elbow Gasket
• 18-1945: Riser

Interchanges/Replaces

Barr

• CM-20-6672

Chrysler Inboard

• 3527794

Mallory

• 9-40313

Osco

• 794

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: Most 140hp 3.0L (181 CID)

Use With:

• 18-1901: Manifold
• 18-2875-1: Exhaust Elbow Gasket

Interchanges/Replaces

GLM

• 51340

Mallory

• 9-40611

OMC Stern Drive

• 0740120
• 3850799
• 910380
• 916096
• 987784

Osco

• 188
• 9863T

Volvo Penta

• 3850799

Key Features:

• 80°

Additional Details:

• For: 3" (76.2mm) I.D. Exhaust Hose

Interchanges/Replaces

Barr

• 200087P

Mallory

• 9-40120

Key Features:

• 30°

Additional Details:

• For: 3" (76.2mm) I.D. Exhaust Hose

Use With:

• 18-1999: Manifold Elbow

Interchanges/Replaces

Barr

• 200089P

Key Features:

• Dry Joint Style

Additional Details:

• Fits: 2004 & newer MCM GM V-6 & V-8(305, 350 & 377 cid) eng. w/dry joint exh manifold (s/n 0W310000 & up)
• Fits: 2002 & newer MIE GM V-8 (350 & 377 cid) eng w/dry joint exh manifold (s/n 0M317000 & up)

Use With:

• 18-0720: Riser Gasket (Closed)
• 18-0721: Riser Gasket (Open)
• 18-0722: Riser Gasket (Restricted)
• 18-1843: Manifold
• 18-1842: V6 Dry Joint Exhaust Manifold

Interchanges/Replaces

Mercruiser Stern Drive

• 864591T02

Key Features:

• Comes with 18-0897, 18-4203 & 18-4258
• Recommended for saltwater applications

Additional Details:

• Fits: MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older)

Use With:

• 18-0672: Exhaust Elbow Gasket
• 18-0897: Exhaust Elbow Gasket
• 18-1952-1: Manifold
• 18-1953-2: Manifold
• 18-2849-1: Exhaust Elbow Gasket
• 18-1957-2: Manifold
• 18-8505: Exhaust Elbow Mounting Kit

Interchanges/Replaces

Barr

• MC-20-44354

GLM

• 51140

HGE

• 4354

Mallory

• 9-40559

Mercruiser Stern Drive

• 44354A10
• 44354A13
• 44354A3
• 44354A9
• 807914A1
• 807988A03
• 807988A2

Osco

• 4354

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
18-8410	Mercruiser Stern Drive 10-43749	4	Riser Bolt		N/A

Key Features:

• For use with 3" I.D. exhaust hose

Additional Details:

• Material: Cast Iron
• For: Ford Small Block V8 302-351 cu. in.

Use With:

• 18-1997-1: Manifold
• 18-1998-1: Manifold
• 18-4364: Exhaust Elbow Mounting Package (Open)
• 18-8535: Exhaust Elbow Mounting Kit (Blocked)
• 18-8538: Exhaust Manifold Mounting Kit
• 18-0476-1: Riser Block Off Gasket
• 18-2854-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• 20-0100
• 20-0102

GLM

• 56120

Indmar

• 53-2009
• 53-2018

Mallory

• 9-40112

Osco

• 2018

Additional Details:

• Material: CAST IRON

Use With:

• 18-1932: Manifold
• 18-2971: Exhaust Manifold Gasket
• 18-19360: Mounting Kit

Interchanges/Replaces

GLM

• 51520

HGE

• 7037

Volvo Penta

• 857037

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2971-1	Barr VO47-835908 GLM 35080 Mallory 9-65800 Osco 35908 Volvo Penta 835908 856039 857618	1	Exhaust Manifold Gasket		N/A

Key Features:

• Fits many GM & Ford center rise manifolds
• 4" outlet 7°

Additional Details:

• Material: CAST IRON

Use With:

• 18-1848: Manifold
• 18-1986-1: Manifold
• 18-8507: Exhaust Elbow Mounting Kit
• 18-0943-2: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• OMC-20-913784

GLM

• 51330

HGE

• 3784

Mallory

• 9-40911

OMC Stern Drive

• 3850456
• 3855270
• 3856444
• 3857944
• 913784

Osco

• 50456

Volvo Penta

• 3855270
• 3857944
• 3863061

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0943-2	Barr OMC 47 909786 GLM 33810 Mallory 9-61452 OMC Inboard 909786 OMC Stern Drive 351325 3850496 909786 913783 Osco 9863-G Volvo Penta 3850496 3863191	1	Exhaust Elbow Gasket		N/A

Additional Details:

• Size: 4" or 101.6mm
• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8523: Exhaust Elbow Mounting Kit
• 18-1918: Elbow
• 18-1928: Elbow w/ 4" Outlet
• 18-1934: Elbow w/ 3" Outlet
• 18-0305-1: Exhaust Elbow Gasket
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 97772

Crusader

• 97772

Mallory

• 9-40401

Osco

• 7772

Additional Details:

• Size: 8" or 203.2mm
• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8519: Exhaust Elbow Mounting Kit
• 18-1918: Elbow
• 18-1928: Elbow w/ 4" Outlet
• 18-1934: Elbow w/ 3" Outlet
• 18-0305-1: Exhaust Elbow Gasket
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 97169

Crusader

• 97169

Mallory

• 9-40410

Osco

• 7169

Additional Details:

• Fits: Late model Mercruiser 4 cylinder engines
• Fits: MCM 2.5L & 3.0L/LX (1982 & newer)

Use With:

• 18-1901: Manifold
• 18-1954-1: Manifold
• 18-1955-1: Manifold
• 18-2748: Exhaust Boot
• 18-2833: Exhaust Elbow Gasket
• 18-8551: Hardware Kit [Exhaust Elbow Bolts]
• 18-2819-1: Exhaust Elbow Gasket
• 18-1956-3: Manifold

Interchanges/Replaces

Barr

• MC-20-12076

GLM

• 51160

Mallory

• 9-40555

Marine Power

• 6000-33A

Mercruiser Stern Drive

• 12076A1
• 12076A2
• 95864A2

Osco

• 2076

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2748	GLM 89120 Mallory 9-72805 Mercruiser Stern Drive 32-44348 32-44348001 32-44348T	1	Exhaust Boot		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
18-710-72-2	Mercruiser Stern Drive 54-31765 54-815504372	4	Hose Clamp-4-1/16 TO 5		N/A
18-8551	GLM 22445 Mallory 9-40585 Osco 2076-MK	1	Hardware Kit [Exhaust Elbow Bolts]