Power Trim Tilt Relay – Fits Mercury 20-300 HP & Johnson Evinrude OMC Sterndrive (Replaces 882751A1, 882751A2)
Power Trim Tilt Relay – Fits Mercury 20-300 HP & Johnson Evinrude OMC Sterndrive (Replaces 882751A1, 882751A2) 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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Power Trim Tilt Relay – Fits Mercury 20-300 HP & Johnson Evinru...
Power Trim Tilt Relay – Fits Mercury 20-300 HP & Johnson Evinrude OMC Sterndrive (Replaces 882751A1, 882751A2) is backordered and will ship as soon as it is back in stock.
Product Details
This is a replacement Power Trim Tilt Relay for a wide range of Mercury and Mariner outboards from 20 to 300 HP, including select Force models. It is also compatible with Johnson/Evinrude engines using OMC Sterndrive 5.0 and 5.8 models, ensuring reliable operation of your boat's trim and tilt system.
It serves as a direct replacement for multiple OEM and aftermarket part numbers, including Mercury 882751A1, 882751A2, Sierra 18-5849, and Johnson/Evinrude OMC 0987625, among others.
- Installs as a direct replacement using standard electrical terminals.
- Features a durable black plastic housing to protect internal components.
- Operates on a 12V system with a 40A rating (SPDT).
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 882751A1 |
| Mercury | 882751A2 |
| Mercury | 828151A1 |
| Mercury | 828151 |
| Johnson/Evinrude OMC | 0987625 |
| Johnson/Evinrude OMC | 3854138 |
| Sierra | 18-5849 |
| GLM | 73040 |
| Red Rhino | ME-777 |
| Tyco | 8-1393305-6 |
| Bosch | 0332204174 |
| HELLA | 87414BP |
| Generic | AZ973-1C-12DC4 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Fits a wide array of Mercury, Mariner, and Force outboard engines from 20 HP to 300 HP.
| Brand | Model | Rated HP | OEM Part No. |
|---|---|---|---|
| Mercury | Various | 20 | 882751A1 |
| Mercury | Various | 30 | 882751A1 |
| Mercury | Various | 40 | 882751A1 |
| Mercury | Various | 50 | 882751A1 |
| Mercury | Various | 55 | 882751A1 |
| Mercury | Various | 60 | 882751A1 |
| Mercury | Various | 75 | 882751A1 |
| Mercury | Various | 90 | 882751A1 |
| Mercury | Various | 100 | 882751A1 |
| Mercury | Various | 115 | 882751A1 |
| Mercury | Various | 125 | 882751A1 |
| Mercury | Various | 135 | 882751A1 |
| Mercury | Various | 150 | 882751A1 |
| Mercury | Various | 175 | 882751A1 |
| Mercury | Various | 200 | 882751A1 |
| Mercury | Various | 225 | 882751A1 |
| Mercury | Various | 250 | 882751A1 |
| Mercury | Various | 300 | 882751A1 |
| Force | Various | 75 | |
| Force | Various | 90 | |
| Force | Various | 120 |
Also compatible with select Johnson/Evinrude OMC Sterndrive models.
| Brand | Model | OEM Part No. |
|---|---|---|
| Johnson/Evinrude | OMC Sterndrive 5.0 | 0987625, 3854138 |
| Johnson/Evinrude | OMC Sterndrive 5.8 | 0987625, 3854138 |
Technical Specs
- Product Type
- Power Trim Tilt Relay
- Installation
- Direct replacement
- Connection
- Electrical terminals
- Housing Material
- Plastic housing with metal terminals
- Housing Color
- Black
- Weight
- 100g (as packaged)
- Fitting Type
- Standard electrical terminals
- Electrical Rating
- 12V, 40A, Single Pole Double Throw (SPDT)
What’s in the Box
- 1 x Power Trim Tilt Relay
Installation Notes
- Disconnect the boat's battery to prevent electrical shorts.
- Locate the existing power trim tilt relay. It is typically found near the engine or trim pump.
- Carefully note the wiring configuration before disconnecting the terminals from the old relay.
- Remove any mounting hardware and detach the old relay.
- Mount the new relay in the same position as the original.
- Connect the electrical terminals to the new relay, ensuring they match the original configuration.
- Reconnect the battery.
- Test the power trim and tilt functions to confirm proper operation.
Troubleshooting & FAQ
How do I know if my trim relay is failing?
Common signs of a faulty relay include the trim/tilt system working in only one direction (up or down), a clicking sound from the relay with no motor action, or the system not working at all. Always check fuses and battery voltage first.
Will this fit my specific engine model year?
This relay is designed for a broad range of Mercury and Johnson/Evinrude engines. Please use the part number matrix and compatibility tables to cross-reference your existing part number. Verifying the part number is the most reliable way to ensure a match.
What is a Single Pole Double Throw (SPDT) relay?
An SPDT relay is an electromagnetic switch that uses a single input to control two separate outputs. In a trim/tilt system, it allows the motor to be driven in two directions (up and down) by reversing the polarity of the electrical current.
Is any special tool required for installation?
No special tools are required beyond basic hand tools like a socket wrench or screwdriver to access and remove the old relay, and possibly pliers for disconnecting tight electrical terminals.
Can this relay be used for other applications?
While designed for marine trim/tilt systems, this 12V 40A SPDT relay is a standard component that could theoretically be used in other automotive or marine applications requiring a high-current polarity-reversing switch, but we only guarantee fitment for the models listed.
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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