Power Trim Tilt Relay for Mercury/Mariner Outboards – 1992 and Later 25–40 HP, Replaces 882751A1
Power Trim Tilt Relay for Mercury/Mariner Outboards – 1992 and Later 25–40 HP, Replaces 882751A1 is backordered and will ship as soon as it is back in stock.
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Power Trim Tilt Relay for Mercury/Mariner Outboards – 1992 and Late...
Power Trim Tilt Relay for Mercury/Mariner Outboards – 1992 and Later 25–40 HP, Replaces 882751A1 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Power Trim Tilt Relay is a direct replacement for selected Mercury and Mariner outboard applications. According to the catalog fitment, it is intended for 1992 and later Mercury/Mariner engines, including 2-cylinder 25–30 HP models, 3-cylinder 40 HP and above models, and 4-cylinder 30 HP models. Always compare the original relay, terminals, engine configuration, and serial-number range before ordering.
The relay is listed as a replacement for Mercury manufacturer part numbers 882751A1, 828151A1, 828151, 882751A2, and 8M0207773. Related aftermarket references include Sierra 18-5849, GLM 73040, and Mallory 9-15210.
- Single power trim and tilt relay for applicable Mercury/Mariner systems.
- Direct replacement design for compatible original relays.
- Uses the existing wiring and mounting arrangement when the replacement matches the original part.
- Supplied as one relay; this listing is not a two-relay kit.
Part Number Matrix
These numbers are listed as replacement or aftermarket references for this relay. Part-number matching alone does not replace verification of the engine configuration and serial-number range.
| Brand or Reference | Part Number | Reference Type |
|---|---|---|
| Mercury | 882751A1 | Manufacturer replacement reference |
| Mercury | 828151A1 | Manufacturer replacement reference |
| Mercury | 828151 | Manufacturer replacement reference |
| Mercury | 882751A2 | Manufacturer replacement reference |
| Mercury | 8M0207773 | Manufacturer replacement reference |
| Sierra | 18-5849 | Aftermarket reference |
| GLM | 73040 | Aftermarket reference |
| Mallory | 9-15210 | Aftermarket reference |
Engine Compatibility
The company fitment description identifies the following application scope. The engine family, cylinder configuration, model year, and serial-number range must be checked together.
| Brand | Year | Engine Configuration | Rated Horsepower | Stroke | Notes |
|---|---|---|---|---|---|
| Mercury/Mariner | 1992 and later | 2-cylinder outboard | 25–30 HP | Not specified | Verify the original relay and serial-number range. |
| Mercury/Mariner | 1992 and later | 3-cylinder outboard | 40 HP and above | Not specified | Verify the original relay and serial-number range. |
| Mercury/Mariner | 1992 and later | 4-cylinder outboard | 30 HP | Not specified | Verify the original relay and serial-number range. |
Technical Specs
- Product Type
- Power trim and tilt relay
- Application
- Selected Mercury/Mariner outboard engines
- Installation
- Direct replacement when the relay, terminals, and application match
- Connection
- Use the existing electrical connections and compare them with the original relay before installation
- Quantity
- One relay
- Brand Status
- Aftermarket replacement; not a genuine Mercury-branded component
What's in the Box
- 1 x Power Trim Tilt Relay
Installation Notes
- Disconnect the boat battery before beginning electrical work.
- Locate the existing trim relay and compare its shape, terminals, markings, and mounting arrangement with the replacement.
- Photograph or label the wire positions before disconnecting the original relay.
- Disconnect the electrical terminals from the old relay.
- Remove any fasteners or brackets securing the old relay.
- Install the replacement relay in the same position, provided the terminal layout and mounting arrangement match.
- Reconnect each wire to the corresponding terminal. Do not force a connection or alter the wiring to make an incompatible relay fit.
- Reconnect the battery and test trim operation in both directions.
- If the system does not operate correctly, disconnect the battery and verify the wiring, fuse or circuit protection, switch, motor, and relay application.
Troubleshooting & FAQ
What are common symptoms of a failed trim relay?
Possible symptoms include a clicking relay with no motor movement, trim operation in only one direction, intermittent operation, or a trim motor that continues running after the switch is released. These symptoms can also be caused by wiring, switches, fuses, connectors, or the trim motor, so test the complete circuit.
Does one relay operate both trim directions?
The relay arrangement varies by engine and trim system. Some systems use one relay and others use a pair of relays. This listing includes one relay only. Check the existing setup and the applicable service information before ordering a quantity.
Does this fit every Mercury or Mariner engine from 20 to 300 HP?
No. The applicable company fitment is narrower than a general 20–300 HP description. It covers selected 1992 and later Mercury/Mariner configurations: 2-cylinder 25–30 HP, 3-cylinder 40 HP and above, and 4-cylinder 30 HP applications. Confirm the exact engine configuration and serial-number range.
Is this an OEM relay?
No. This is an aftermarket replacement. The manufacturer part numbers shown in this listing are compatibility references only and do not indicate that the relay is manufactured or branded by Mercury.
Which part numbers does this relay replace?
Reference numbers listed for this relay include Mercury 882751A1, 828151A1, 828151, 882751A2, and 8M0207773, plus aftermarket references Sierra 18-5849, GLM 73040, and Mallory 9-15210. Confirm the application before purchase.
How should I verify compatibility?
Compare the original relay's part number, terminal arrangement, physical design, engine brand, cylinder configuration, horsepower, model year, and serial-number range. If any of these details do not match, consult the engine service information or a qualified marine technician.
Safety & Important Information
- Disconnect the battery before removing or installing an electrical relay.
- Verify the original part number and terminal layout before installation.
- Do not assume compatibility from horsepower alone; keep model, year, cylinder configuration, stroke, and serial-number conditions together.
- This is an aftermarket replacement, not a genuine Mercury component.
- Professional installation is recommended if you are unfamiliar with marine electrical systems.
About Sea Sierra
- Marine Replacement Parts — We provide replacement components for maintenance and repair applications.
- Application-Focused Listings — Product information is organized around part-number and fitment verification.
- Support for Installation Decisions — Compare the original component and engine details before ordering or installing.
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