Mercury Outboard Power Trim Tilt Switch Harness 18286A43
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Mercury Quicksilver 18286A43 is a genuine OEM switch/harness assembly used for power trim and tilt control in Mercury outboard remote-control applications. Current Mercury dealer references list it as SWITCH/HARNESS, and current outboard-focused cross-reference listings describe it as a power trim switch for Mercury / Mariner remote controls, including 4000-series controls (1994 and newer).
Key Features
- Genuine Mercury Marine OEM part number 18286A43.
- Current Mercury references identify it as a switch/harness assembly.
- Used as a power trim / tilt switch in compatible outboard remote-control applications.
- Current dealer listing shows GTIN / UPC 745061123373.
- Current dealer shipping specs are approximately 0.11 lb, 8.00 in. x 8.50 in. x 1.00 in.
Engine Compatibility
This is not an engine-specific part. The strongest supportable fitment for 18286A43 is Mercury / Mariner outboard remote-control box trim/tilt service, especially the remote-control applications described by current sources as 4000-series (1994+) style controls. The key match is the control box / switch application, not engine displacement alone.
Serial Number Fitment Notice
Verify fitment by exact remote control box style, outboard serial number, and the correct control-handle / trim-switch parts diagram before ordering. With 18286A43, the safest match is the installed switch-and-harness layout in the control assembly, because trim/tilt switch families can vary by control generation.
When This Part Needs Replacement
Replace this switch harness when the trim/tilt function becomes intermittent, stops responding, or when the switch body, wiring, or connector section is damaged. Since current sources identify 18286A43 as the trim/tilt switch-and-harness assembly, it is the correct type of part when the remote-control trim switch itself has failed.
Installation Notes
Install 18286A43 only after confirming the correct Mercury remote-control application for the outboard being serviced. Because this is a switch-and-harness assembly, it should be matched to the exact control-box configuration and wiring path rather than ordered by appearance alone.
Alternate/Superseded Part Numbers
Current sources connect earlier Mercury OEM numbers 18286A26, 18286A2, and 16991A1 with 18286A43. One current cross-reference source also associates this switch family with 859032T02, but the clearest common OEM reference in the sources reviewed remains 18286A43.
Parts Desk Insight
With trim switch parts like this, the important match is the control box family, not just the engine brand. Confirming the exact remote-control setup first usually avoids ordering the wrong switch harness for an otherwise similar Mercury outboard system.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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