Mercury 20" Driveshaft Housing Midsection Assembly | OEM 8M0063489 | Fits 2011 & Up Mercury 150HP 4-Stroke Outboards

Product Overview

Replace your damaged or worn midsection with this genuine OEM Mercury 20" Driveshaft Housing Midsection Assembly, designed for 2011 and newer Mercury 150HP 4-Stroke outboard engines. This complete midsection assembly includes the driveshaft housing, swivel bracket, adapter plate, exhaust components, steering hardware, mounts, and transom brackets, making it an excellent replacement for damaged or corroded assemblies. Removed from a freshwater engine, this assembly has been professionally inspected and is ready for installation. It shows only normal cosmetic wear, including some peeling paint and minor scuffs consistent with previous use, without affecting functionality.

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Key Features

• Genuine OEM Mercury 20" Midsection Assembly
• Complete driveshaft housing with swivel bracket
• Freshwater component
• Professionally inspected
• Includes steering tube, adapter plate, exhaust pipe, mounts, and transom brackets
• Minor cosmetic wear only
• Ready to install
• Ideal replacement for damaged or corroded midsections

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Technical Specifications

Specification	Details
Brand	Mercury
Product Type	Driveshaft Housing / Midsection Assembly
Shaft Length	20"
Engine Type	4-Stroke
Horsepower	150 HP
Model Years	2011 & Up
Condition	Used – Good Condition

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OEM Part Numbers

Included Components

• Driveshaft Housing: 8M0063489
• Adapter Plate: 8M0057701
• Exhaust Pipe: 8M0057718
• Swivel Bracket: 8M0057751
• Steering Tube: 8M0133457
• Steering Tube Assembly: 8M0057743
• Yoke: 8M0057726
• Lower Mount: 8M0057725
• Upper Mount: 8M0143228
• Port Transom Bracket: 8M0057721
• Starboard Transom Bracket: 8M0061365

Supersedes

• 8M0095760
• 8M0058189
• 8M0057723

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Compatible Applications

Designed for select Mercury outboards including: Model Years

• 2011 & Up

Horsepower

• 150 HP

Engine Type

• Mercury 4-Stroke

Shaft Length

• 20"

Important: Mercury updated many part numbers on newer engines, and fitment may vary by serial number. Always verify compatibility using your engine serial number before purchasing. If you need assistance, contact EZ Boats Marine and we'll gladly confirm fitment.

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Condition

This Mercury midsection assembly has been professionally inspected and is in good used condition. Inspection highlights include:

• Removed from a freshwater engine
• Complete assembly with swivel bracket
• Some peeling paint from normal use
• Minor cosmetic scuffs and scratches
• No major structural damage observed
• Ready for installation

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What's Included

Your purchase includes:

• Driveshaft Housing
• Adapter Plate
• Exhaust Pipe
• Swivel Bracket
• Steering Tube
• Steering Tube Assembly
• Yoke
• Upper and Lower Mounts
• Port & Starboard Transom Brackets

Only the components shown in the product photos are included.

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Shipping Information

Your midsection assembly will be professionally 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
• Freshwater Components
• Professionally Inspected
• Complete Midsection Assembly
• 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 knowledgeable service and dependable support.

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Frequently Asked Questions

Is this a genuine Mercury midsection assembly?

Yes. This is a genuine OEM Mercury driveshaft housing and midsection assembly.

What is included?

The assembly includes the driveshaft housing, swivel bracket, adapter plate, exhaust pipe, steering tube assembly, mounts, yoke, and both transom brackets as listed above.

What condition is it in?

This assembly was removed from a freshwater engine and has been professionally inspected. It has some peeling paint and minor cosmetic wear but is ready to install.

Which engines does it fit?

It fits select 2011 and newer Mercury 150HP 4-Stroke outboards with a 20-inch shaft. Because Mercury uses serial number-specific components on newer engines, fitment should always be verified before ordering.

Can EZ Boats Marine verify compatibility?

Yes. Simply send us your Mercury engine's model and serial number, and we'll confirm whether this midsection assembly is the correct fit before you purchase.