319994 BRP Reed Valve Manifold | Genuine Used Part

🔧 Product Description

Genuine OMC Johnson Evinrude Intake Manifold and Reed Valve Plate - Casting Number: 319994

A genuine OMC intake-manifold and reed-plate assembly for selected Johnson and Evinrude two-cylinder and three-cylinder carburetted outboards.

The number 319994 is commonly cast or stamped into the manifold plate rather than being the complete service-assembly number. Physical reed layout, carburettor pattern and engine model should be checked before installation.

⚙️ Key Features

• Genuine OMC intake-manifold casting
• Casting or reference number 319994
• Supplied with reed valves where fitted
• Controls one-way fuel-and-air flow into the crankcase
• Suitable for selected loop-charged two-stroke outboards

🚤 Compatibility

Commonly used on

• Johnson and Evinrude loop-charged intake systems

Typically suits

• Engine models documented with the 319994 casting:
• 35HP - selected 1986-1987 models
• 40HP - selected 1986-2005 models
• 48HP - selected 1987-1996 models
• 50HP - selected 1979-2005 models
• 55HP - selected 1976-1980 models
• 60HP - selected 1982-1985 models
• HP Range: Approximately 35HP - 60HP
• Engine Type: Johnson / Evinrude carburetted two-stroke outboard
• Fitment Requirement: Confirm the casting suffix, reed count and carburettor mounting pattern

🔌 Function

The reed petals open when crankcase pressure drops, allowing the fuel-and-air mixture to enter. They close when crankcase pressure rises, preventing the mixture from being forced back through the carburettor.

⚠️ Common Signs of Failure

• Fuel mist spits back through the carburettor
• Engine is difficult to start
• Poor or unstable idle
• Weak acceleration and reduced power
• Reed petals are chipped, bent or no longer sealing flat

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 319994 / 319994-2 casting reference
• Service assembly number varies with horsepower and year

OEM / Related Numbers

• 319994
• 319994-2
• 0313420 individual reed leaf on documented applications
• Related reed stops and retaining screws
• Related intake-manifold and carburettor-base gaskets

Aftermarket / Verified Equivalents

• Rareelectrical composite reed set for matching OMC 50HP-70HP three-cylinder reed blocks
• Boyesen composite reed-petal sets for compatible OMC two- and three-cylinder engines
• Aftermarket manifold and reed-block gasket sets
• No direct aftermarket complete manifold casting

📦 Condition

• Genuine used part
• Reed condition should be checked before installation
• Removed from running engine where applicable
• In good working condition unless otherwise stated