Remote Control Tilt Trim Switch – Fits Mercury Mariner Outboard Controls (Replaces 87-18286A43, 87-16991A1, 87-18286A2)
Remote Control Tilt Trim Switch – Fits Mercury Mariner Outboard Controls (Replaces 87-18286A43, 87-16991A1, 87-18286A2) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Remote Control Tilt Trim Switch – Fits Mercury Mariner Outboard Con...
Remote Control Tilt Trim Switch – Fits Mercury Mariner Outboard Controls (Replaces 87-18286A43, 87-16991A1, 87-18286A2) is backordered and will ship as soon as it is back in stock.
Product Details
This rocker-style Remote Control Tilt Trim Switch is designed for Mercury and Mariner outboard remote control boxes. It offers broad compatibility with most Mercury outboard engines from 25HP to 400HP manufactured from 1999 and up, ensuring a precise fit and reliable performance.
This part is a direct interchange for Mercury part numbers 87-18286A43, 87-16991A1, 87-18286A2, and 87-18286A26.
- Engineered for direct plug-and-play installation in the control box.
- Constructed from high-quality, durable ABS plastic.
- Features an OEM-specification electrical connector for secure hookup.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 87-18286A43 |
| Mercury | 87-16991A1 |
| Mercury | 87-18286A2 |
| Mercury | 87-18286A26 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Control Box Model | OEM Part No. | Notes |
|---|---|---|
| Mercury 881170A1 | 87-18286A43 | Compatible control box |
| Mercury 881170A2 | 87-18286A43 | Compatible control box |
| Mercury 881170A15 | 87-18286A43 | Compatible control box |
| Mercury 881170A20 | 87-18286A43 | Compatible control box |
| Brand | Models | HP Range | Years | Notes |
|---|---|---|---|---|
| Mercury | Various | 25–400 HP | 1999 and up | Fits most Mercury outboard engines with compatible remote controls |
Technical Specs
- Product Type
- Remote Control Tilt Trim Switch
- Installation
- Direct plug-and-play for control box installation
- Connection
- OEM specification electrical connector
- Material
- ABS plastic
- Color
- Black
- Wire Type
- AWG 20 standard harness wire
- Switch Style
- Rocker switch with long-lasting spring
- Operating Voltage
- 12V DC
What’s in the Box
- 1 x Remote Control Tilt Trim Switch (87-18286A43/87-16991A1/87-18286A2/87-18286A26)
Installation Notes
- Ensure the engine is off and disconnect the battery as a safety precaution.
- Open the remote control box housing to access the internal components.
- Carefully locate and unplug the old trim switch’s electrical connector.
- Remove any fasteners or clips holding the old switch in the handle and remove it.
- Insert the new tilt trim switch into the slot, making sure it is securely seated.
- Connect the new switch's plug to the corresponding harness connector.
- Reassemble the remote control box housing.
- Reconnect the battery and thoroughly test the new switch for proper up-and-down trim operation.
Troubleshooting & FAQ
How do I confirm this switch fits my specific Mercury remote control?
This switch is a direct replacement for OEM part numbers 87-18286A43, 87-16991A1, 87-18286A2, and 87-18286A26. It is designed for popular Mercury remote control boxes, including the 881170 series. The best way to ensure compatibility is to verify the part number on your original switch before ordering.
What are the signs that my current trim switch is failing?
Common symptoms of a failing trim switch include intermittent operation, the trim only working in one direction (up or down), or having to press the button multiple times to activate the trim motor. Over time, internal contacts can wear out or corrode.
Is installation a DIY job?
For individuals with basic mechanical and electrical knowledge, installation is straightforward. It involves opening the remote control housing, unplugging the old switch, and plugging in the new one. However, if you are not comfortable with this process, we recommend professional installation.
My trim works in one direction but not the other. Is the switch bad?
A failure in one direction is a strong indicator of a faulty switch, as the internal contacts for up and down are separate. However, it's also wise to check the boat's trim/tilt relays and wiring to rule out other potential issues before replacing the switch.
How does this aftermarket switch differ from a genuine OEM part?
Our aftermarket switch is manufactured to meet or exceed OEM specifications for fit, function, and durability. It is made from similar high-grade materials (like ABS plastic) and undergoes quality control to ensure reliable performance, offering a cost-effective solution without compromising quality.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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