Sierra 18-0956-1 Marine Exhaust Manifold Gasket for Ford 460 V-8 & 3.7L Engines

The Sierra 18-0956-1 is a marine exhaust manifold gasket engineered to seal the exhaust manifold to the cylinder head on Ford 460 CID V-8 and 3.7L (4-cylinder) marine engines. Designed as a direct OEM-equivalent replacement, this gasket is fully interchangeable with original equipment parts from MerCruiser, OMC, Volvo, and Chrysler Inboard applications.

Key Features:

• Seals the exhaust manifold-to-cylinder head interface on Ford 460 CID V-8 and 3.7L (4-cyl) marine engines
• Manufactured to meet or exceed OEM specifications for a reliable, leak-free fit
• Compatible with MerCruiser, OMC Stern Drive, Volvo, and Chrysler Inboard stern drive systems
• Direct drop-in replacement — no modifications required

Replaces OEM Part Numbers:

• Chrysler Inboard: 118-614
• GLM: 33800
• Mallory: 9-61418
• MerCruiser Stern Drive: 27-68715
• OMC Stern Drive: 912405

Sierra marine engine parts are trusted by boaters and marine technicians alike for their precision fit and durability. The 18-0956-1 is the correct choice when servicing or replacing an exhaust manifold on applicable Ford marine powerplants.