Mercury Side Mount Remote Control | OEM 8M0178521 | 8-Pin with 15-Foot Harness & Power Trim | New in Box

Product Overview

Upgrade or replace your outboard controls with this genuine OEM Mercury Side Mount Remote Control, designed for Mercury outboards using the 8-pin side mount control system. This brand-new OEM control box includes an integrated power trim switch and a 15-foot wiring harness, making it an ideal replacement for worn or damaged remote controls. Manufactured by Mercury Marine, this side mount remote control features an 8-pin connector and replaces multiple earlier part numbers, ensuring broad compatibility across many Mercury outboard applications. Supplied new in the original box and never installed, it offers factory fit, smooth operation, and dependable performance. Whether you're replacing an existing control or installing a new OEM system, this Mercury side mount remote control provides the quality and reliability expected from genuine Mercury Marine parts.

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Key Features

• Genuine OEM Mercury Side Mount Remote Control
• Brand new, never installed
• Integrated power trim switch
• 8-pin connector
• Includes 15-foot wiring harness
• Genuine Mercury OEM replacement
• Factory fit and finish
• Ready to install
• 1-year working warranty

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Technical Specifications

Specification	Details
Brand	Mercury
Product Type	Side Mount Remote Control
Condition	New in Box
OEM Part Number	8M0178521
Box Part Number	881170A15
Connector Type	8-Pin
Harness Length	15 Feet
Harness Part Number	84-17179
Trim Switch	Integrated Power Trim

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OEM Part Numbers

Current Part Number

• 8M0178521

Also Replaces

• 881170A15
• 881170A1
• 16900A15

Harness Included

• 84-17179 (15-Foot Wiring Harness)

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Compatible Applications

Designed for select Mercury outboards equipped with the 8-pin side mount remote control system. This control replaces the complete Mercury supersession chain including:

• 8M0178521
• 881170A15
• 881170A1
• 16900A15

Important: Always verify compatibility using your engine's model, serial number, and OEM part number before purchasing. If you need assistance confirming fitment, contact EZ Boats Marine and we'll be happy to help.

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Condition

This Mercury Side Mount Remote Control is brand new. Inspection highlights include:

• New in original box
• Never installed
• Genuine Mercury OEM component
• Includes integrated power trim switch
• Includes 15-foot wiring harness
• Ready for installation

Please review all product photos carefully before purchasing.

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What's Included

Your purchase includes:

• OEM Mercury Side Mount Remote Control (8M0178521)
• OEM 15-Foot Wiring Harness (84-17179)

Only the components shown in the product photos are included.

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Shipping Information

Your remote control assembly will be securely packaged to help prevent shipping damage during transit. We offer fast shipping throughout the United States, with international shipping available upon request. For an accurate shipping quote, please provide:

• Country
• ZIP or Postal Code
• Residential or Commercial Address
• Whether liftgate service is required

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Why Buy from EZ Boats Marine?

• Genuine OEM Mercury Marine Parts
• Brand-New Factory Components
• Factory Fit and Finish
• Honest Product Descriptions
• Fast Nationwide & International Shipping
• Secure Packaging
• Experienced Marine Parts Specialists
• Dedicated Customer Support

EZ Boats Marine is committed to supplying quality OEM marine parts backed by expert service and dependable support.

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Frequently Asked Questions

Is this a genuine Mercury part?

Yes. This is an original OEM Mercury Side Mount Remote Control manufactured by Mercury Marine.

Is it new?

Yes. This control assembly is brand new, never installed, and supplied in the original box.

What is included?

The package includes the OEM side mount remote control with integrated power trim switch and the 15-foot OEM wiring harness (84-17179).

Which engines does it fit?

This control is designed for Mercury outboards equipped with the 8-pin side mount remote control system. Always verify compatibility using your engine's serial number and OEM part number before ordering.

Is it ready to install?

Yes. The control assembly is complete, includes the wiring harness, and is ready for installation.

What warranty is included?

This remote control includes a 1-year working warranty. If it fails during normal use, EZ Boats Marine will repair, replace, or refund the item if a replacement is unavailable.

Can EZ Boats Marine verify fitment?

Absolutely. Simply send us your Mercury engine's model and serial number, and we'll confirm whether this OEM 8M0178521 Side Mount Remote Control is the correct fit before you purchase.