Trim & Tilt Switch – Fits Mercury Marine Outboard Remote Control Box (Replaces 87-18286A43, 87-16991A1, 87-18286A2, 87-18286A26)
This trim and tilt switch is designed for various Mercury, Mariner, Mercruiser, and Quicksilver outboard remote control boxes. It provides reliable, direct-fit functionality for controlling your engine's tilt and trim.
This part is a direct replacement for Mercury OEM part numbers 87-18286A43, 87-16991A1, 87-18286A2, and 87-18286A26. It also replaces aftermarket parts from SouthMarine (87-18286A43) and Chazcool (87-18286A43).
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Installation: Plug-in mount with a 54 cm (21.3 in) cable and Molex connector.
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Operation: Features an ON-OFF-ON operation mode for precise tilt and trim control.
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Package Includes: 1 × Tilt Trim Switch (87-18286A43).
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Mercury |
87-18286A43 |
| Mercury |
87-16991A1 |
| Mercury |
87-18286A2 |
| Mercury |
87-18286A26 |
| SouthMarine |
87-18286A43 |
| Chazcool |
87-18286A43 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
| Brand |
Control Box |
OEM Part No. |
Notes |
| Mercury |
Commander 3000 Remote Control Box |
87-18286A43 |
Fits remote control box |
| Mercury |
881170A1 Control |
87-18286A43 |
Confirmed control box compatibility |
| Mercury |
881170A2 Control |
87-18286A43 |
Confirmed control box compatibility |
| Mercury |
881170A15 Control |
87-18286A43 |
Confirmed control box compatibility |
| Mercury |
881170A20 Control |
87-18286A43 |
Confirmed control box compatibility |
Technical Specifications
| Specification |
Value |
| Product Type |
Tilt/Trim Switch |
| Installation |
Plug-in mount |
| Housing Material |
Plastic, Metal |
| Housing Color |
Black |
| Dimensions |
3.2 × 1.9 × 3.0 cm (1.3 × 0.7 × 1.2 in) |
| Connection |
Molex connector |
| Cable Length |
54 cm (21.3 in) |
| Operation Mode |
ON-OFF-ON |
| Contact Type |
Normally Closed |
| Circuit Type |
1-way |
| Actuator Type |
Push Button |
| Contact Material |
Aluminum |
| Number of Positions |
2 |
| Controller Type |
Remote Control |
| Warranty |
30-day return/replacement |
Package Contents
- 1 × Tilt Trim Switch (87-18286A43)
Installation Guide
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Safety First: Disconnect the battery before beginning any electrical work to prevent short circuits or injury.
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Locate the Old Switch: Find the existing tilt/trim switch on your remote control box handle.
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Access the Wiring: Open the remote control box housing to access the switch's wiring and connector.
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Disconnect the Old Switch: Carefully unplug the Molex connector of the old switch from the wiring harness.
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Remove the Old Switch: Unclip or unscrew the old switch from its mounting position in the control box handle.
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Install the New Switch: Position the new switch into the mounting slot until it clicks securely into place.
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Connect Wiring: Plug the Molex connector from the new switch into the corresponding socket in the control box. Ensure a firm connection.
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Reassemble the Control Box: Close the remote control box housing, making sure no wires are pinched.
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Restore Power: Reconnect the battery.
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Test Operation: Test the new switch to ensure the trim and tilt functions operate correctly in both up and down directions.
Troubleshooting & FAQ
Q: How do I confirm this switch fits my control box?
A: Check your control box model against the compatibility list provided. This switch is a direct replacement for OEM part numbers like 87-18286A43. Visually comparing your old switch and its connector to our product images is also highly recommended.
Q: What are the signs that my tilt/trim switch is failing?
A: Common signs include intermittent operation, the trim/tilt only working in one direction, or a complete failure to respond when the button is pressed. This can be caused by internal corrosion or contact failure from wear and tear.
Q: Is this a plug-and-play installation?
A: Yes, this switch is designed for a plug-in mount. It comes with a 21.3-inch cable and a Molex connector that matches the factory harness, requiring no wire splicing for compatible models.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.