Remote Control Tilt Trim Switch – Fits Mercury Mariner 25-400 HP (Replaces 87-18286A43, 87-16991A1, 87-18286A2)
Remote Control Tilt Trim Switch – Fits Mercury Mariner 25-400 HP (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
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Remote Control Tilt Trim Switch – Fits Mercury Mariner 25-400 HP (R...
Remote Control Tilt Trim Switch – Fits Mercury Mariner 25-400 HP (Replaces 87-18286A43, 87-16991A1, 87-18286A2) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Remote Control Tilt Trim Switch is designed for Mercury and Mariner outboard engines from 25–400 HP, manufactured from 1999 and up. It provides reliable, direct-fit functionality for compatible remote control units, ensuring your power tilt and trim system operates smoothly.
It serves as a direct replacement for Mercury part numbers 87-18286A43, 87-16991A1, 87-18286A2, and 87-18286A26.
- Features a direct plug-and-play OEM specification connector for easy installation.
- Constructed from durable ABS plastic to withstand the marine environment.
- Backed by a 1-year warranty against manufacturing defects.
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 and remote control box in the tables below.
This switch fits a wide range of Mercury and Mariner outboards connected to specific remote control boxes. Please verify your control box part number for guaranteed fitment.
| Brand | Models | Rated HP | Stroke | Years | Notes |
|---|---|---|---|---|---|
| Mercury/Mariner | Various | 25-400 HP | Both 2-Stroke & 4-Stroke | 1999–and up | Fits most outboards with compatible remote controls |
| Control Box Model | OEM Part No. | Notes |
|---|---|---|
| Mercury | 881170A1 | Compatible control box |
| Mercury | 881170A2 | Compatible control box |
| Mercury | 881170A15 | Compatible control box |
| Mercury | 881170A20 | Compatible control box |
Technical Specs
- Product Type
- Remote Control Tilt Trim Switch
- Installation
- Direct plug-and-play for control box installation
- Connection
- OEM specification electrical connector
- Housing Material
- ABS plastic
- Housing Color
- Black
- Wire Type
- AWG 20 standard harness wire
- Dimensions
- Approx. 33 × 18 × 30 mm (1.3 × 0.7 × 1.2 inches)
- Cable Length
- Approx. 541 mm (21.3 inches)
- Switch Style
- Rocker switch with spring mechanism
- Operating Voltage
- 12V DC
- Warranty
- 1-year against manufacturing defects
What’s in the Box
- 1 x Remote Control Tilt Trim Switch (Replaces 87-18286A43/87-16991A1/87-18286A2/87-18286A26)
Installation Notes
- Safety First: Disconnect the battery or main power supply to the engine before beginning work.
- Access the Control Box: Open the remote control box housing. This may require removing several screws.
- Locate and Disconnect: Identify the old tilt/trim switch and carefully unplug its electrical connector.
- Remove the Old Switch: Release any clips or screws holding the switch in place and remove it from the control handle.
- Install the New Switch: Position the new switch in the control handle and secure it using the original mounting method.
- Connect and Test: Plug in the new switch's electrical connector. Reconnect the battery, turn the key to the "ON" position (without starting the engine), and test both the "UP" and "DOWN" functions of the switch.
- Reassemble: Once functionality is confirmed, securely close and fasten the remote control box housing.
Troubleshooting & FAQ
How do I know if this switch fits my remote control?
The best way to ensure compatibility is to match your existing remote control box's part number with those listed in the compatibility table (e.g., 881170A15, 881170A20). While the switch fits a wide range of 1999+ Mercury/Mariner engines, the fit is determined by the control box model.
What are the signs of a failing tilt/trim switch?
Common symptoms include intermittent operation (works sometimes but not others), the trim only working in one direction (up or down), or a complete failure to respond. Before replacing the switch, check the system's fuse and electrical connections for corrosion.
My new switch isn't working. What should I check?
First, confirm the plug is securely connected. Second, verify the battery is connected and the ignition key is in the "ON" position. If it still doesn't work, check the main trim/tilt fuse and relay. The issue could also be with the trim motor itself or other wiring in the system.
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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