6587a5 Mercury Bottom Cowling | Genuine Used Part

🔧 Product Description

Genuine Mercury Bottom Cowling Assembly - Part Number: 2159-6587A5

A genuine used Mercury lower engine cowling for selected 7.5HP and 9.8HP two-stroke outboards.

The assembly forms the fixed lower pan beneath the removable top cowling. It surrounds the powerhead base, supports the cowling latches and provides mounting locations for controls, fuel connections and related lower-cowl hardware.

⚙️ Key Features

• Genuine Mercury Marine bottom cowling
• Correct assembly number 2159-6587A5
• Also catalogued as 6587A5
• Used on Mercury 7.5HP and 9.8HP two-stroke outboards
• Suitable for Merc 75 and Merc 110 engine families

🚤 Compatibility

Commonly used on

• Mercury 7.5HP two-stroke lower-cowling assemblies
• Mercury 9.8HP / Merc 110 lower-cowling assemblies
• Corresponding Mariner 7.5HP and 9.8HP platforms where the same cowling is fitted

Typically suits

• Engine models:
• Mercury 75 / 7.5HP two-cylinder two-stroke
• Mercury 110 / 9.8HP two-cylinder two-stroke
• Mercury 9.8HP - serial 7127388 and above
• Mariner 7.5HP two-stroke applications using the Mercury cowling platform
• Mariner 9.8HP two-stroke applications using the Mercury cowling platform
• HP Range: 7.5HP - 9.8HP
• Engine Type: Mercury two-cylinder carburetted two-stroke outboard
• Year Range: Approximately 1979 - 1985

🔌 Function

The bottom cowling supports the removable engine hood, encloses the base of the powerhead and provides mounting locations for the engine controls and cowling latches.

⚠️ Common Signs of Failure

• Cracked or corroded lower pan
• Broken top-cowling latch locations
• Damage around control or fuel-line openings
• Cowling no longer aligns with the upper cover
• Loose or damaged mounting points

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 2159-6587A5 established Mercury bottom-cowl assembly reference

OEM / Related Numbers

• 2159-6587A5
• 6587A5
• 21596587A5
• 2159-6589 related casting number
• 78809 related cowling latch component
• Merc 75 platform reference
• Merc 110 platform reference

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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