Description
⚙️ Mercury 8M0116808 is an OEM steering actuator assembly with a 4-foot harness, used in Mercury Marine joystick-piloting steering systems. Parts catalogs identify it as a steering actuator and harness assembly for Mercury joystick-piloting applications.
The actuator is designed to provide the mechanical steering actuation required by the compatible joystick-piloting system. It is suitable for replacement and service applications where the original 8M0116808 assembly is installed. Mercury parts information indicates that 8M0116808 has been superseded by 8M0116809, which is listed as a functional replacement and may have a different appearance.

📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | Mercury Marine |
| Model | 8M0116808 |
| Product Name | Steering Actuator Kit |
| Part Type | Steering Actuator with 4-Foot Harness |
| Application | Joystick Piloting / Marine Steering |
| System | Mercury Marine Outboard Joystick Piloting |
| Original Part Number | 8M0116808 |
| Superseding Part | 8M0116809 |
| Harness | 4 ft |
| Condition | New – Open Box |
| Dimensions | Not specified in available manufacturer data |
| Weight | Shipping reference approximately 20.06 lb; product weight not separately specified |
| Country of Origin | Not specified in available manufacturer documentation |
🔧 Key Features
- ⚓ OEM Mercury Marine steering actuator assembly
- 🔌 Integrated 4-foot harness
- 🎮 Designed for compatible Mercury joystick-piloting steering systems
- 🔄 Used for steering actuation in marine outboard applications
- 🛠️ Suitable for maintenance and replacement applications
- 📦 Original part number 8M0116808
- 🔁 Superseded by Mercury 8M0116809
- 🔧 Replacement part may have a different physical appearance while serving as a functional replacement
🔗 System Integration
The 8M0116808 steering actuator forms part of the steering hardware used by Mercury Marine joystick-piloting systems. Parts diagrams identify it as the steering actuator/4-foot harness assembly and show associated retainers, washers, screws, seals, and gaskets used within the actuator installation.
For replacement applications, verify the boat, engine, joystick-piloting generation, mounting arrangement, harness length, and existing part number before installation. Because Mercury has superseded 8M0116808 with 8M0116809, buyers replacing an original unit should also verify compatibility with the current replacement part.
❓ FAQ
Q1: What is Mercury 8M0116808?
A: It is a Mercury Marine steering actuator assembly with a 4-foot harness for compatible joystick-piloting applications.
Q2: What system is it used with?
A: It is associated with Mercury Marine joystick-piloting systems for outboard applications.
Q3: Has 8M0116808 been replaced?
A: Yes. Mercury parts information identifies 8M0116809 as the superseding part number and describes it as a functional replacement.
Q4: Is 8M0116808 the same as 8M0116809?
A: They are not the same part number. 8M0116809 supersedes 8M0116808 and may look different while serving as a functional replacement.
Q5: What should be checked before ordering?
A: Confirm the original part number, joystick-piloting system, engine/boat application, actuator mounting arrangement, and harness configuration.
🔑 Product Keywords
Mercury 8M0116808, 8M0116808, Mercury Steering Actuator, Mercury Steering Actuator Kit, Mercury 4 Foot Harness, Mercury Joystick Piloting, Mercury Marine Actuator, Mercury Outboard Steering, Mercury JPO Actuator, 8M0116809 Replacement, Marine Steering Actuator
For additional marine automation, control, and industrial automation products: New PLC DCS
🔟 Other Mercury Marine Models / Related Parts
- Mercury 8M0116809 – Steering Actuator & 4-Foot Harness
- Mercury 8M0109149 – Steering Actuator & 4-Foot Harness
- Mercury 8M0157207 – Quad Tie Bar Steering Actuator Kit
- Mercury 8M0157208 – Quad Tie Bar Steering Actuator Kit
- Mercury 87-8M0150039 – APS / Combiner Kit
- Mercury 8M0150037 – Hot Stud Kit
- Mercury 8M0086774 – Trailering Bracket
- Mercury 98-8M0073161 – Link Rod Kit
- Mercury 8M0150463 – 20-Foot Harness
- Mercury 8M0115125 – Sensor Diagnostic Kit
For replacement applications, match the complete part number and marine system configuration before installation, especially when substituting the superseding 8M0116809.
