Yamaha Jet Drive Gearcase & Adapter Plate Lower Unit | OEM 902 | Fits 1983–1994 Yamaha 40 & 50 HP Jet Drive Outboards | Ready to Install

Product Overview

Replace your damaged jet drive lower unit with this genuine OEM Yamaha Jet Drive Gearcase & Adapter Plate Assembly, designed for 1983–1994 Yamaha 40 HP and 50 HP Jet Drive outboards. Professionally inspected and ready for installation, this complete assembly offers an excellent replacement for worn or damaged jet drive components. The gearcase is in excellent working condition, featuring no internal scoring, no visible damage, and is ready for immediate installation. The adapter plate is included as shown in the product photos. Always verify compatibility using your engine's model, serial number, and OEM part number before purchasing.

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Key Features

• Genuine OEM Yamaha Jet Drive Gearcase
• Includes adapter plate
• Professionally inspected
• No internal scoring
• No visible damage
• Ready to install
• Ideal replacement for worn or damaged jet drive assemblies
• Genuine Yamaha OEM quality

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Technical Specifications

Specification	Details
Brand	Yamaha
Product Type	Jet Drive Gearcase & Adapter Plate
Condition	Used – Professionally Inspected
OEM Part Number	902
Casting Number	C# 41566
Additional Number	3082732
Engine Type	Jet Drive
Horsepower	40 HP / 50 HP

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OEM Part Numbers

Primary Part Numbers

• 902
• Casting Number: 41566
• Reference Number: 3082732

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Compatible Applications

Designed for select Yamaha Jet Drive outboards including:

Model Years

• 1983
• 1984
• 1985
• 1986
• 1987
• 1988
• 1989
• 1990
• 1991
• 1992
• 1993
• 1994

Horsepower

• 40 HP
• 50 HP

Engine Type

• Yamaha Jet Drive Outboards

Important: Fitment may vary depending on your engine configuration. Always verify compatibility using your model, serial number, and OEM part number before ordering. If you need assistance, EZ Boats Marine is happy to confirm fitment.

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Condition

This Yamaha Jet Drive Gearcase & Adapter Plate has been professionally inspected and is in excellent used condition. Inspection highlights include:

• No internal scoring
• No visible cracks or damage
• Professionally inspected
• Ready for installation
• Clean overall condition

Please review all product photos carefully before purchasing.

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What's Included

Your purchase includes:

• OEM Yamaha Jet Drive Gearcase
• Adapter Plate

Only the components shown in the product photos are included.

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Shipping Information

Your gearcase assembly will be professionally packaged to prevent 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 Yamaha Marine Parts
• Professionally Inspected Components
• Honest Condition Descriptions
• Ready-to-Install Parts
• 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 customer support.

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Frequently Asked Questions

Is this a genuine Yamaha gearcase?

Yes. This is an original OEM Yamaha Jet Drive Gearcase and Adapter Plate assembly.

Has this gearcase been inspected?

Yes. It has been professionally inspected and found to have no internal scoring, no visible damage, and is ready for installation.

Which engines does it fit?

This assembly fits select 1983–1994 Yamaha 40 HP and 50 HP Jet Drive outboards. Always verify compatibility using your engine's model, serial number, and OEM part number before ordering.

Is the adapter plate included?

Yes. The adapter plate is included exactly as shown in the product photos.

Can this item be returned?

Please verify compatibility before purchasing. Returns are not accepted for incorrect orders or buyer's remorse. However, this part is guaranteed to be in working condition. If an issue arises upon receipt, please contact EZ Boats Marine and we'll work to resolve it.

Can EZ Boats Marine verify fitment?

Absolutely. Simply send us your Yamaha engine's model and serial number, and we'll confirm whether this genuine OEM 902 Yamaha Jet Drive Gearcase & Adapter Plate Lower Unit is the correct fit before you purchase.