87-18211 Aftermarket Mercruiser Relay V200 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercury / Mariner Power-Trim Relay - Part Number: 87-18211

Sealed high-current relay used in the UP/DOWN power-trim circuit on selected Mercury and Mariner outboards, including documented V-200 and three-cylinder applications.

⚙️ Key Features

• 12 V marine trim relay

• Switches motor current under command from the trim switch

• Direct replacement for Mercury 87-18211

• Used as one relay within a reversible two-relay circuit

• Connector and mounting arrangement must match the original

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 87-18211 → Original Mercury relay reference

• Later relay conversion is model- and harness-dependent

OEM / Related Numbers:

• 87-18211

• 18211

• REC87-18211

Aftermarket / Verified Equivalents:

• Recmar: REC87-18211

• Aftermarket Mercury plug-matched 18211 relay assemblies

🚤 Compatibility

Commonly used on:

• Mercury/Mariner outboard power-trim electrical systems

Typically suits:

• Engine / drive models:

• V-200 serial 0D082000-0G303045

• Magnum III and related 2.5 L V6 applications in the same electrical family

• Selected 40 HP two-stroke models from serial 0C159200 and Belgium serial 9570790 where 87-18211 is listed

• Only engines using the matching relay connector and bracket

• HP Range: Principally 40-200 HP on documented applications

• Engine / Drive Type: 12 V two-relay reversible trim-motor circuit

• Year Range: Approximately late-1980s-mid-1990s

• Serial / Identification Range: Confirm engine serial and relay connector. Relays that appear identical can have different pin layouts or mounting tabs.

🔌 Function

Applies battery power to the trim motor in one direction; the paired relay reverses polarity for the opposite direction.

Common signs of failure or replacement requirement:

• Trim works in only one direction

• Relay clicks but motor receives insufficient voltage

• Intermittent operation when the relay is moved

• Burnt terminals or melted connector

• No response despite a functioning trim switch and motor

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging