Power Trim Tilt Relay – Mercury/Mariner Outboards and MerCruiser, OMC Cobra & Volvo Penta Sterndrives – Replaces 882751A1, 828151A1, 828151, 882751A2
Power Trim Tilt Relay – Mercury/Mariner Outboards and MerCruiser, OMC Cobra & Volvo Penta Sterndrives – Replaces 882751A1, 828151A1, 828151, 882751A2 is backordered and will ship as soon as it is back in stock.
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Power Trim Tilt Relay – Mercury/Mariner Outboards and MerCruiser, O...
Power Trim Tilt Relay – Mercury/Mariner Outboards and MerCruiser, OMC Cobra & Volvo Penta Sterndrives – Replaces 882751A1, 828151A1, 828151, 882751A2 is backordered and will ship as soon as it is back in stock.
Product Details
This is an aftermarket tilt trim relay for selected Mercury and Mariner outboard engines manufactured in 1992 and later. Company fitment information covers Mercury/Mariner 2-cylinder engines rated 25–30 HP, 3-cylinder engines rated 40 HP and up, and 4-cylinder 30 HP outboard models.
The relay is also listed for selected MerCruiser stern/out-drive applications, including OMC Cobra and Volvo Penta relay boxes for 5.7, 4.3, and 3.0 engines from 1994–1996.
Use the reference numbers below to compare the relay with the component currently installed on your engine or relay box before ordering.
- Replacement tilt trim relay for the applications listed on this page.
- Single relay supplied; this listing is not a two-relay kit.
- Confirm the original relay number, terminal arrangement, engine configuration, and serial-number range where applicable before installation.
Part Number Matrix
The following manufacturer and aftermarket references are associated with this relay. Cross-reference the number on your existing part before purchase.
| Brand | Part Number |
|---|---|
| Mercury | 882751A1 |
| Mercury | 828151A1 |
| Mercury | 828151 |
| Mercury | 882751A2 |
| Mercury | 8M0207773 |
| Sierra | 18-5849 |
| GLM | 73040 |
| Mallory | 9-15210 |
| OMC / Volvo Penta | 3854138 |
| OMC / Volvo Penta | 03854138 |
Engine & Model Compatibility
Company fitment is summarized below. Horsepower, cylinder configuration, model year, and sterndrive application should be considered together; a general horsepower match alone does not confirm compatibility.
| Brand | Engine Configuration | Rated Horsepower | Year Condition | Reference Numbers |
|---|---|---|---|---|
| Mercury / Mariner | 2-cylinder outboard | 25–30 HP | 1992 and later | 882751A1, 828151A1, 828151, 882751A2, 8M0207773 |
| Mercury / Mariner | 3-cylinder outboard | 40 HP and up | 1992 and later | 882751A1, 828151A1, 828151, 882751A2, 8M0207773 |
| Mercury / Mariner | 4-cylinder outboard | 30 HP | 1992 and later | 882751A1, 828151A1, 828151, 882751A2, 8M0207773 |
Stern / Out-Drive Applications
| Brand or Drive System | Relay Box Application | Model Years | Reference Numbers |
|---|---|---|---|
| OMC Cobra / Volvo Penta | 5.7, 4.3, and 3.0 relay box | 1994–1996 | 3854138, 03854138 |
Technical Specs
- Product Type
- Tilt trim relay
- Product Format
- Single replacement relay
- Primary Applications
- Selected Mercury/Mariner outboards and MerCruiser, OMC Cobra, and Volvo Penta stern/out-drive relay-box applications
- Outboard Fitment
- 1992 and later Mercury/Mariner configurations listed above
- Stern / Out-Drive Fitment
- 5.7, 4.3, and 3.0 relay boxes from 1994–1996
- Installation
- Replacement installation; verify the original terminal layout and mounting arrangement before fitting
What’s in the Box
- 1 x Tilt trim relay
Installation Notes
- Switch off the engine and disconnect the battery or appropriate power source before servicing the relay circuit.
- Locate the existing tilt trim relay on the outboard or within the stern-drive relay box.
- Record or photograph the original wire and terminal positions before disconnecting anything.
- Compare the replacement relay with the original part, including the part number, terminal arrangement, housing, and mounting features.
- Remove the old relay and install the replacement in the same position.
- Reconnect each wire to the matching terminal. Do not force terminals or alter the wiring layout.
- Reconnect the battery or power source and test the trim function in both directions.
- If the system does not operate correctly, disconnect power and check the fuse, battery voltage, wiring, ground connections, and terminal condition before replacing additional components.
Troubleshooting & FAQ
Which engines are covered by the listed outboard fitment?
The company fitment listing covers 1992 and later Mercury/Mariner 2-cylinder 25–30 HP outboards, 3-cylinder 40 HP-and-up outboards, and 4-cylinder 30 HP outboards. Verify your exact configuration and existing relay number before ordering.
Does this relay fit stern-drive applications?
It is also listed for selected MerCruiser stern/out-drive applications, including OMC Cobra and Volvo Penta relay boxes used with 5.7, 4.3, and 3.0 engines from 1994–1996. Confirm the relay-box application and reference number before installation.
Are the outboard and stern-drive references interchangeable in every application?
No. The reference numbers and fitment conditions must be matched to the specific engine or relay box. Do not rely on a number alone when the cylinder configuration, model year, or drive system differs.
What symptoms can indicate a faulty tilt trim relay?
Possible symptoms include trim operation in only one direction, a clicking relay with no motor response, intermittent operation, or no trim response. Check the battery, fuse, wiring, and connections before replacing the relay.
Is this an OEM relay?
No. This listing is for an aftermarket replacement relay. The manufacturer and aftermarket reference numbers shown are provided for cross-referencing fitment.
Is this a two-relay kit?
No. This product contains one relay. A separate two-relay product may use a different package configuration and should not be confused with this listing.
Safety & Important Information
- Disconnect the battery before working on the trim or relay circuit.
- Verify the existing part number, terminal arrangement, engine configuration, model year, and relay-box application before purchase.
- Do not modify wiring or force terminals to make an incompatible relay fit.
- Professional installation is recommended if the wiring, relay box, or trim system is damaged or difficult to identify.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for selected outboard and stern-drive applications.
- Application-Focused Information — Fitment details and cross-reference numbers are provided to help you compare the replacement with your original part.
- Installation Confidence — Verify the complete application and terminal layout before installation for the best result.
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