Manifold 

Key Features:

• Will fit either Port or Starboard
• Ideally suited for freshwater applications

Use With:

• 18-0418: Exhaust Manifold Mounting Gasket
• 18-8532: Exhaust Manifold Mounting Kit
• 18-0672: Exhaust Elbow Gasket
• 18-0897: Exhaust Elbow Gasket
• 18-1908: Manifold Riser Spacer
• 18-1970-2: Riser Elbow
• 18-1974-1: Elbow
• 18-1976-2: Manifold Elbow
• 18-1985: Manifold Spacer
• 18-2849-1: Exhaust Elbow Gasket
• 18-8554: Exhaust Elbow Mounting Kit
• 18-8555: Exhaust Elbow Mounting Kit

Interchanges/Replaces

Barr

• MC-1-89011

GLM

• 51240

HGE

• 9011

Mallory

• 9-40506

Marine Power

• 0991-1000

Mercruiser Stern Drive

• 807078Q07
• 807078T08

Osco

• 9011

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
18-0418	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	1	Exhaust Manifold Mounting Gasket		N/A
18-4224	GLM 13990 Mallory 9-41200 Mercruiser Stern Drive 22-806926A1 22-862210A01	1	Drain Elbow Assembly		N/A