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Mercury Outboard Parts
Shop OEM and aftermarket Mercury outboard parts for maintenance, repair, troubleshooting, and complete engine rebuild projects. Browse Mercury marine parts by system, including cooling, fuel delivery, electrical and ignition, internal engine components, lower unit parts, steering, trim, and routine service items.
Pro Marine USA carries Mercury outboard engine parts for a wide range of 2-stroke, FourStroke, EFI, Optimax, Pro XS, SeaPro, and Verado applications. Use your engine horsepower, model, serial number, or OEM part number whenever possible to confirm fitment before ordering.
Shop Mercury Outboard Parts by System
- Complete Powerheads
- Control Cables & Boxes
- Cooling System
- Cowlings & Components
- Electrical System
- Engine Oil
- Engine Rebuild Kits
- Fuel & Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Service & Oil Change Kits
- Service Manuals
- Steering Systems
- Throttle Components
- Transom & Midsection
- Trim System
- Wizard Performance Parts
Find the Correct Mercury Outboard Part
Mercury outboard parts can vary by horsepower, engine family, model year, and serial number range. If you are unsure which component fits your engine, use the OEM parts lookup to locate the original Mercury part number from an engine diagram.
Once you have the OEM part number, search Pro Marine to find available genuine Mercury and aftermarket replacement options.
Use Our OEM Parts Lookup »Common Mercury Outboard Engine Families
Pro Marine supports many Mercury outboard applications across a wide horsepower range. Always confirm the engine serial number and model information before ordering parts.
- Portable and Midrange: Mercury 2.5HP through 60HP 2-stroke and FourStroke applications
- FourStroke and EFI: common 75HP through 300HP Mercury EFI and FourStroke platforms
- Pro XS: performance-oriented Mercury Pro XS outboards across multiple engine families
- Optimax: direct-injected 2-stroke Mercury Optimax engines, commonly 75HP through 250HP
- Verado: supercharged and naturally aspirated Mercury Verado applications from 135HP through current high-horsepower platforms
- SeaPro: commercial-duty Mercury SeaPro outboards used in professional and high-hour applications
Common Mercury Outboard Repair Areas
- Overheating: inspect the water pump, impeller, thermostat, poppet valve, cooling passages, and related cooling components.
- Hard starting or rough running: inspect fuel pumps, filters, injectors or carburetors, spark plugs, coils, sensors, and intake components.
- No spark or intermittent ignition: check ignition coils, stators, switch boxes, trigger assemblies, sensors, grounds, and wiring.
- Low compression or power loss: inspect pistons, rings, cylinders, bearings, gaskets, reeds, and internal engine components.
- Lower unit noise or water intrusion: inspect seals, bearings, gears, shafts, bearing carriers, and gear lube condition.
- Trim or steering problems: inspect trim motors, pumps, hydraulic components, steering cylinders, hoses, and related rigging parts.
Why Buy Mercury Outboard Parts from Pro Marine USA?
- OEM Mercury and aftermarket replacement options for many common applications.
- Parts for maintenance, repair, engine rebuilding, lower units, electrical systems, fuel systems, steering, trim, and rigging.
- OEM diagram and part-number lookup tools to help identify the correct part before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large inventory of Mercury service parts and hard-to-find marine engine components.
- Fast weekday shipping on qualifying in-stock orders.
Frequently Asked Questions
How do I find the correct Mercury outboard part?
Use the engine horsepower, model, serial number, and year whenever available. Mercury frequently uses serial-number ranges to identify engine families, so the serial number is often the most reliable way to confirm fitment.
Can I search Mercury parts by OEM part number?
Yes. Enter the Mercury OEM part number into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.
Do Mercury outboard parts vary by serial number?
Yes. Many Mercury components change by serial-number range even within the same horsepower or model family. Always compare the serial range listed for the part with your engine before ordering.
Do you carry parts for Mercury Optimax and Verado engines?
Yes. Pro Marine carries parts for many Mercury Optimax, Verado, Pro XS, EFI, FourStroke, and SeaPro applications, including maintenance, fuel, electrical, cooling, internal engine, lower unit, steering, and rigging components.
Do you carry both OEM and aftermarket Mercury parts?
Yes. Pro Marine offers genuine Mercury parts along with aftermarket replacement parts for many common Mercury outboard maintenance, repair, and rebuild applications.
What Mercury outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump kits, impellers, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Mercury outboard parts often vary by serial-number range. Confirm your engine serial number and OEM part number whenever possible before ordering.
11380
18-2299
445-224
52833
79447
9-72641
17460
18-2398
18323
320311
445-204
777613
9-72640
18-2376
73020A20
775497
818763A10
818763A11
818763A4
818763T11
9-72602
835290A1
835290Q1
850515
0350038
18-2343
32800
346546
350038
9-78108
92721
9-33603
858077KC1
858077K01
18-8003
8M0154777
8692305
509435
53079
53079
53079A1
53079A1
Mercury OEM 881170A15 8-Pin Side Mount Remote Control
The Mercury 881170A15 Side Mount Control is a genuine Mercury OEM remote-control assembly for compatible mechanical rigging systems using an 8-pin electrical connection.
This side-mount control is configured for Gen 1-style mechanical throttle and shift cables, includes a 15-foot harness, and provides power trim and tilt control on the compatible installation.
Product Information
- Part Number: 881170A15
- Brand: Genuine Mercury OEM
- Part Type: Side Mount Remote Control
- Electrical Connection: Mercury 8-Pin
- Control Cable Type: Gen 1 Style
- Harness Length: 15 Feet
- Trim Function: Power Trim and Tilt Control
- Mounting Style: Side Mount
- Aftermarket Alternative: Pro Marine 881170A15P
Important Fitment Note
Do not choose this control by engine horsepower alone. Compatibility depends on the boat's complete Mercury rigging configuration.
This OEM control is for compatible applications requiring a Mercury 8-pin electrical connection, Gen 1-style mechanical control cables, and a 15-foot harness.
Similar Mercury side-mount controls may use a 14-pin connection, different cable generation, different harness length, or another control configuration. Verify the original control and rigging before ordering.
OEM and Cross Reference Numbers
Mercury 881170A15 is associated with the following remote-control references for compatible applications.
| Part Number | Relationship |
|---|---|
| 881170A15 | Genuine Mercury OEM |
| 16900A15 | Mercury Cross Reference |
| 16900A20 | Mercury Cross Reference |
| 8M0178521 | Newer Mercury Replacement Reference |
| 8M0178524 | Mercury Cross Reference |
| 881170A1 | Earlier Mercury Reference |
| 881170A2 | Earlier Mercury Reference |
| 881170A20 | Mercury Cross Reference |
| 88170A15 | Cross Reference |
| 881170A15P | Pro Marine Aftermarket Alternative |
What This Control is Used For
This Mercury side-mount remote control provides helm operation of the mechanical throttle and shift system on compatible Mercury installations.
The control mounts on the side of the helm or console rather than on top of the console, and it connects to the engine rigging using the required Mercury 8-pin electrical harness and Gen 1-style control cables.
The compatible installation also provides power trim and tilt operation from the remote-control handle.
Mercury Rigging Fitment
This control is best identified by its rigging configuration rather than by engine horsepower or a broad model-year range.
| Fitment Requirement | Required Configuration |
|---|---|
| Rigging Brand | Compatible Mercury Mechanical-Control System |
| Mounting Style | Side Mount |
| Electrical Connection | Mercury 8-Pin |
| Control Cable Type | Gen 1-Style Mechanical Control Cables |
| Harness Length | 15 Feet |
| Trim Configuration | Power Trim and Tilt |
| Control Operation | Mechanical Throttle and Shift |
8-Pin vs. 14-Pin Mercury Side Mount Controls
Mercury used several electrical configurations in its mechanical remote controls. The 881170A15 is an 8-pin control.
Do not confuse it with 14-pin Mercury side-mount controls. Even when the outside appearance is similar, the electrical harness may be different. Always inspect the existing connector before ordering.
Gen 1 Control Cable Application
This remote control is intended for compatible Gen 1-style Mercury mechanical control cables.
Gen 1 and Gen 2 control cables use different control-end attachment configurations. A Gen 2 cable application should not be assumed to work with this control.
Pro Marine 881170A15P Side Mount Control
Looking for an aftermarket alternative? Pro Marine USA also stocks 881170A15P for the compatible 8-pin, Gen 1 cable, 15-foot harness application.
Common Replacement Reasons
- Original side-mount control is worn or physically damaged.
- Throttle or shift lever operation has become loose or unreliable.
- Power trim switch in the original control no longer functions correctly.
- Control housing, wiring, or internal mechanism has been damaged.
- An older matching Mercury control is being replaced during a rigging restoration.
- Existing control has been identified as one of the matching cross-reference numbers.
Hard shifting or throttle movement may also be caused by worn, corroded, binding, or incorrectly adjusted control cables. The complete control and cable system should be inspected during diagnosis.
Installation Tips
- Disconnect battery power before servicing the control or engine electrical system.
- Verify the original control uses the required Mercury 8-pin electrical connection.
- Confirm both throttle and shift cables use Gen 1-style connections.
- Inspect existing control cables for corrosion, stiffness, kinks, or excessive wear.
- Verify the 15-foot harness is appropriate for the existing routing.
- Route wiring and cables without excessive tension, sharp bends, or chafing.
- After installation, verify neutral, shift direction, throttle travel, trim operation, and overall control function.
Remote-control installation directly affects throttle and shift operation. Installation and adjustment should be performed by a qualified marine technician when the installer is not familiar with Mercury mechanical rigging.
Key Features and Benefits
- Genuine Mercury OEM: Factory Mercury remote-control assembly.
- 8-Pin Configuration: For compatible Mercury 8-pin electrical systems.
- Side Mount Design: Designed for compatible side-mounted helm installations.
- Gen 1 Cable Fitment: Uses compatible Gen 1-style mechanical control cables.
- 15-Foot Harness: Configured with the specified harness length.
- Power Trim and Tilt: Provides trim control on compatible Mercury applications.
- Aftermarket Alternative: Pro Marine 881170A15P is also available.
Frequently Asked Questions
What is Mercury 881170A15?
It is a genuine Mercury OEM side-mount remote control for compatible mechanical rigging systems using an 8-pin electrical connection, Gen 1-style control cables, and a 15-foot harness.
Does Mercury 881170A15 use an 8-pin connector?
Yes. This control is listed for the Mercury 8-pin electrical configuration.
What type of control cables does it use?
It is intended for compatible Gen 1-style mechanical throttle and shift cables.
How long is the harness?
The harness is 15 feet long.
Does this control include trim operation?
Yes. This configuration provides power trim and tilt control on the compatible Mercury installation.
What supersedes Mercury 881170A15?
Mercury parts information identifies 8M0178521 as a newer replacement reference for 881170A15.
Is Pro Marine 881170A15P an aftermarket alternative?
Yes. Pro Marine USA also stocks the Pro Marine 881170A15P side-mount control .
Is this the same as a 14-pin Mercury control?
No. This is the 8-pin version. A 14-pin control uses a different electrical configuration.
Can I use this with Gen 2 control cables?
Do not assume compatibility. This control is specifically identified for Gen 1-style cables.
Will this fit every Mercury outboard?
No. Fitment depends on the complete rigging setup, including connector style, cable generation, mounting configuration, and harness requirements.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
881170A15, 16900A15, 16900A20, 8M0178521, 8M0178524, 881170A1, 881170A2, 881170A20, 88170A15, 881170A15P
Searchable Terms
Mercury OEM side mount control, Mercury 8 pin side mount control, Mercury 8-pin remote control, Mercury Gen 1 control, Mercury Gen 1 cable control, Mercury 15 foot harness control, Mercury trim and tilt control, Mercury mechanical remote control, Mercury throttle and shift control, Mercury control box, Mercury side mount remote, 881170A15, 8M0178521 replacement, 16900A15 replacement
16900A20
8M0178521
8M0178524
881170A1
881170A15
881170A2
881170A20
88170A15