# 881352T Mercury Relay | Genuine Used Part

🔧 Product Description

  

Genuine Mercury Relay - Part Number: 881352T

  

A genuine Mercury relay used on selected Mercury EFI four-stroke outboards. This relay supersedes to 8M0098898 and is used in engine electrical systems where the OEM serial-numbered diagram specifies 881352T.

  

⚙️ Key Features

  

• Genuine Mercury relay

• Correct OEM part number 881352T

• Supersedes to 8M0098898

• Used on Mercury EFI four-stroke engine electrical systems

• Must be matched by serial range and relay position

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 881352T to 8M0098898

  

OEM / Related Numbers:

  

• 881352T

• 8M0098898

• 881352-T

• Mercury relay

• UPC: 745061050440

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury EFI four-stroke outboard relay circuits

• Selected 75HP to 225HP EFI four-stroke electrical assemblies

  

Typically suits:

  

• Mercury 75 EFI 4-Stroke - serial 1B172291 to 1B366822

• Mercury 80 EFI 4-Stroke - serial 1B227000 to 1B366822

• Mercury 90 EFI 4-Stroke - serial 1B172291 to 1B366822

• Mercury 100 EFI 4-Stroke - serial 1B227000 to 1B366822

• Mercury 115 EFI 4-Stroke - serial 0T178500 to 0T800999

• Mercury 115 EFI 4-Stroke - serial 0T801000 to 1B226999

• Mercury 115 EFI 4-Stroke - serial 1B227000 to 1B366822

• Mercury 225 EFI 4-Stroke - serial 0T653945 and up

• HP Range: 75HP / 80HP / 90HP / 100HP / 115HP / 225HP

• Engine Type: Mercury EFI four-stroke outboard

• Year Range: Serial-number controlled

• Serial Note: Confirm engine serial number and relay position before installation.

  

🔌 Function

  

The relay switches power to its assigned engine electrical circuit, allowing the ECU or control circuit to operate higher-current components safely.

  

Common signs of failure:

  

• No-start condition

• Relay clicks but circuit does not power up

• Intermittent EFI or fuel-pump operation

• Trim or auxiliary circuit intermittently dead where applicable

• Burnt relay terminals

• Corroded relay socket

• Fault changes when relay is tapped or moved

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 10.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Electronic Components | ECU CDI & Electrical Parts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.00 AUD | In stock |

## Images

- 881352T Mercury Relay | Genuine Used Part
- 881352T Mercury Relay | Genuine Used Part
- 881352T Mercury Relay | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/881352t-mercury-relay-genuine-used-part)
> Updated: 2026-06-29