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: 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

Use With:

• 18-1901: Manifold

Interchanges/Replaces

Barr

• OMC47315055

GLM

• 34700

OMC Stern Drive

• 315055

Use With:

• 18-1901: Manifold

Interchanges/Replaces

Barr

• OMC47311121

GLM

• 33330

OMC Stern Drive

• 311121