0390131 Johnson 90HP Mid Section Cowling | Genuine Used Part

🔧 Product Description

Genuine Johnson / Evinrude Rear Exhaust Housing Cover - Part Number: 0390131

A genuine rear midsection cover fitted to the exhaust housing of selected Johnson and Evinrude V4 and V6 outboards.

This component is the removable rear exhaust-housing cover rather than the upper engine cowling. It closes the rear of the midsection and provides service access to the exhaust adapter, mounts and cooling components.

⚙️ Key Features

• Genuine Johnson / Evinrude rear midsection cover
• Correct part number 0390131
• Fits 20-inch exhaust-housing assemblies where specified
• Removable access cover with separate perimeter seal
• Used on V4 and V6 outboard midsections

🚤 Compatibility

Commonly used on

• Johnson and Evinrude V4 and V6 exhaust housings
• 20-inch midsection assemblies

Typically suits

• Engine models:
• Johnson / Evinrude 88HP V4
• Johnson / Evinrude 90HP V4
• Johnson / Evinrude 100HP V4
• Johnson / Evinrude 110HP V4
• Johnson / Evinrude 112HP V4
• Johnson / Evinrude 115HP V4
• Johnson / Evinrude 150HP V6
• Johnson / Evinrude 175HP V6
• 20-inch transom models using rear cover 0390131
• 1989 Evinrude 88HP E88MSLCER
• 1991 Evinrude 175HP E175STLEID
• 1998 Evinrude 90HP E90TSLECM
• HP Range: 88HP - 175HP
• Engine Type: Johnson / Evinrude V4 and V6 two-stroke outboard
• Year Range: Approximately 1985-1998

🔌 Function

The cover closes the rear opening of the exhaust housing, protecting the internal adapter, mounts and cooling components while allowing removal for midsection service.

⚠️ Common Signs of Failure

• Cover is cracked or distorted
• Mounting screws or holes are damaged
• Seal is missing or no longer seats correctly
• Cover rattles or shifts during operation
• Paint is heavily corroded, faded or damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0390131 current OEM rear-cover reference

OEM / Related Numbers

• 0390131
• 390131
• 0318258 related cover seal
• 0323800 related front exhaust-housing cover
• 0983524 25-inch rear cover and seal assembly

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated