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Power Trim Tilt Relay – Fits Mercury/Mariner 20-300 HP & Johnson/Evinrude OMC (Replaces 882751A1, 882751A2)

Sale price $16.99 Regular price $27.00
Shipping calculated at checkout.

Power Trim Tilt Relay – Fits Mercury/Mariner 20-300 HP & Johnson/Evinrude OMC (Replaces 882751A1, 882751A2) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Power Trim Tilt Relay is a direct-fit electrical component for a wide range of outboard and sterndrive engines, including Mercury/Mariner 20–300 HP (2-Stroke & 4-Stroke), Force 75–120 HP outboards, and Johnson/Evinrude OMC Sterndrives with 5.0 and 5.8 applications. It ensures reliable operation of your power trim and tilt system.

It serves as a direct replacement for numerous OEM and aftermarket part numbers, including Mercury 882751A1/882751A2, Johnson/Evinrude OMC 0987625/3854138, Sierra 18-5849, and Bosch 0332204174.

  • Installs as a direct replacement using standard electrical terminals.
  • Engineered as a 12V, 40A, Single Pole Double Throw (SPDT) relay.
  • Packaged securely for safe transit.

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
Bosch 0332204174
Hella 87414BP
Zettler AZ973-1C-12DC4
Tyco 8-1393305-6
Red Rhino ME-777

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Mercury/Mariner engines, verify your serial number range falls within the listed compatible models. This relay fits a wide variety of 2-stroke and 4-stroke engines that are not Verado models.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury Various 30 4-Stroke EFI 0T409000-1B226999 882751A1
Mercury Various 40 4-Stroke (3 CYL.) EFI 0T409000-UP 882751A1
Mercury Various 40 4-Stroke (4 CYL.) CARB 0T228405-0T598999 882751A1
Mercury Various 40 4-Stroke (4 CYL.) EFI 0T409000-UP 882751A1
Mercury Various 45 4-Stroke BODENSEE 0G472133-0T178499 882751A1
Mercury Various 50 4-Stroke (4 CYL.) CARB 996CC 0T178500-0T598999 882751A1
Mercury Various 50 4-Stroke (4 CYL.) EFI 996CC 0T409000-UP 882751A1
Mercury Various 60 4-Stroke (4 CYL.) CARB 996CC 0T178500-0T598999 882751A1
Mercury Various 60 4-Stroke (4 CYL.) EFI 996CC 0T409000-UP 882751A1
Mercury Various 115 4-Stroke EFI W/ 2 RELAY TRIM 0T178500-0T800999 882751A1
Mercury Various 115 4-Stroke EFI 1731CC 0T809000-1B366822 882751A1

Technical Specs

Product Type
Power Trim Tilt Relay
Installation
Direct replacement with standard electrical terminals
Connection
Electrical terminals
Housing Material
Plastic housing with metal terminals
Housing Color
Black
Weight
100g (as packaged)
Fitting Type
Standard electrical terminals
Other Technical Attributes
12V, 40A, Single Pole Double Throw (SPDT)

What’s in the Box

  • 1 x Power Trim Tilt Relay (882751A1/882751A2)

Installation Notes

  1. Disconnect the boat's battery to prevent electrical shorts.
  2. Locate the existing power trim relay on your engine or boat.
  3. Carefully note the wire connections before unplugging the old relay. Taking a photo can be helpful.
  4. Disconnect the electrical connectors from the old relay.
  5. Remove any mounting screws or brackets holding the old relay and set it aside.
  6. Mount the new relay in the same position as the original.
  7. Reconnect the electrical connectors to the new relay, ensuring each wire goes to the correct terminal.
  8. Reconnect the boat's battery.
  9. Test the power trim and tilt switch to ensure the system operates correctly in both directions.

Troubleshooting & FAQ

How do I know if my trim relay is failing?

Common signs of a faulty trim relay include a clicking sound from the relay when the trim switch is pressed but the engine doesn't move, the trim working in one direction but not the other, or the trim motor running continuously. Intermittent operation is also a key symptom.

My trim motor works but only goes down, not up. Is the relay the problem?

This is a classic symptom of a failed relay. Power trim systems use one or two relays to reverse the motor's polarity. If it operates in one direction, the motor is likely fine, but the relay has failed on one side of its internal switch. Replacing the relay usually solves this.

Is this a single relay or do I need two?

This depends on your system. Some older or simpler trim systems use a single relay, while many use a pair of identical relays (one for up, one for down). Check your engine's service manual or inspect the existing setup. If you see two identical relays side-by-side, it is best to replace them as a pair.

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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