Manifold Riser Spacer 

Additional Details:

• Size: 3"
• For: Mercruiser GM V6 229 & 262cu.in (Models 185 & 205)
• For: Mercruiser GM Small block V8 305-350cu.in. (Models 200, 228, 230, 260 & 898)
• For: Mercruiser GM Big Block V8 454cu,in (Models 330, 340 & 7.4L)

Use With:

• 18-1952-1: Manifold
• 18-1953-2: Manifold
• 18-8554: Exhaust Elbow Mounting Kit
• 18-8555: Exhaust Elbow Mounting Kit
• 18-8556: Exhaust Elbow Mounting Kit
• 18-0672: Exhaust Elbow Gasket
• 18-0897: Exhaust Elbow Gasket
• 18-2849-1: Exhaust Elbow Gasket
• 18-1957-2: Manifold
• 18-1970-2: Riser Elbow
• 18-1976-2: Manifold Elbow

Interchanges/Replaces

Barr

• MC-20-93320A3

Mallory

• 9-40530

Mercruiser Stern Drive

• 93320

Osco

• 3320