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]

Additional Details:

• Fits: All #1 units without ridge (s/n 3443920 & Below)

Interchanges/Replaces

GLM

• 89040

Mallory

• 9-72700

Mercruiser Stern Drive

• 36223
• 36223A1
• 36223A2

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-710-72-2	Mercruiser Stern Drive 54-31765 54-815504372	2	Hose Clamp-4-1/16 TO 5
9-73116	Mercruiser Stern Drive 54-86049	2	BELLOWS GROUND CLIP

Key Features:

• Includes clamp

Additional Details:

• Fits: MC-I, R, MR, Alpha One & TR/TRS drives (1972-1990)

Interchanges/Replaces

GLM

• 89050

Mallory

• 9-72701

Mercruiser Stern Drive

• 60932A1
• 60932A4

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-710-72-2	Mercruiser Stern Drive 54-31765 54-815504372	2	Hose Clamp-4-1/16 TO 5

Additional Details:

• Includes: Clamp
• For: Bravo & Blackhawk models

Interchanges/Replaces

GLM

• 89140

Mallory

• 9-72702

Mercruiser Stern Drive

• 86840A05
• 86840A3
• 8M0062406

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-710-72-2	Mercruiser Stern Drive 54-31765 54-815504372	1	Hose Clamp-4-1/16 TO 5		N/A
18-1710	Mallory 9-73118 Mercruiser Stern Drive 862209 86814	1	Bellow, Flange Ring		N/A
9-73116	Mercruiser Stern Drive 54-86049	1	BELLOWS GROUND CLIP		N/A

Additional Details:

• Fits: Alpha One Gen II (1991 & Newer) and Vazer

Interchanges/Replaces

GLM

• 89180

Mallory

• 9-72704

Mercruiser Stern Drive

• 816431A1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-1728	Mallory 9-73117 Mercruiser Stern Drive 816607	1	Bellow Flange Ring		N/A
9-73116	Mercruiser Stern Drive 54-86049	1	BELLOWS GROUND CLIP		N/A
18-710-72-2	Mercruiser Stern Drive 54-31765 54-815504372	1	Hose Clamp-4-1/16 TO 5		N/A