0320838 0327796 Johnson 90HP Inner Lower Exhaust Housing | Genuine Used Part

🔧 Product Description

Genuine Johnson / Evinrude Inner Lower Exhaust Housing - Part Numbers: 0320838 / 0327796

A genuine used inner lower exhaust housing for selected Johnson and Evinrude V4 and V6 two-stroke outboards with a standard 20-inch midsection.

The housing fits inside the outer exhaust housing and directs exhaust gases from the powerhead toward the propeller-hub outlet. OEM service sources use both 0320838 and 0327796 for this housing, with the two numbers treated as replacement or interchangeable references in different catalogues.

⚙️ Key Features

• Genuine Johnson / Evinrude inner lower exhaust housing

• OEM references 0320838 and 0327796

• Standard 20-inch transom configuration

• Used on V4 and V6 two-stroke midsections

• Directs and contains exhaust flow within the outer housing

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 0320838 and 0327796 are interchangeable service references in available OMC catalogues

• Both numbers are obsolete from current production

OEM / Related Numbers:

• 0320838

• 320838

• 0327796

• 327796

• 0338597 related upper inner exhaust housing

• 0340824 related 20-inch outer exhaust housing

• 0434632 related lower rubber mount

• 0911042 related housing-to-crankcase screw

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Johnson and Evinrude standard-length V4 midsections

• Johnson and Evinrude standard-length V6 midsections

• 20-inch exhaust-housing assemblies

Typically suits:

• Engine families:

• Johnson / Evinrude 85HP

• Johnson / Evinrude 88HP

• Johnson / Evinrude 90HP

• Johnson / Evinrude 100HP

• Johnson / Evinrude 110HP and 112HP

• Johnson / Evinrude 115HP and 120HP

• Johnson / Evinrude 125HP, 135HP and 140HP

• Johnson / Evinrude 150HP and 155HP

• Johnson / Evinrude 175HP and 185HP

• Johnson / Evinrude 200HP, 225HP and 235HP

• Standard 20-inch models where 0320838 or 0327796 is shown in the exhaust-housing diagram

• HP Range: Approximately 85HP - 235HP

• Engine Type: Johnson / Evinrude V4 and V6 two-stroke outboard

• Shaft Length: Standard / 20-inch

• Year Range: Approximately 1976 - 1998, with later service use on selected engines

🔌 Function

The housing channels exhaust gases through the midsection while separating the exhaust stream from the surrounding cooling-water and mounting components.

Common signs of failure:

• Excessive exhaust noise

• Corrosion or erosion inside the housing

• Cracks caused by heat or impact

• Exhaust leakage within the midsection

• Damaged mounting or sealing surfaces

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated