Used Yamaha F350 V8 Lower Unit – OEM 30” Shaft | 350HP Four Stroke | Fully Serviced

High-Performance OEM Yamaha 350HP Lower Unit — V8 Four Stroke (2008–2019)

Upgrade your outboard with this Used Yamaha F350 V8 Lower Unit, designed for unbeatable performance and reliability.
This OEM 30-inch (U/XXL) Standard Rotating Right-Hand Lower Unit fits all Yamaha F350 V8 four-stroke engines (2008–2019) and is also compatible with F300 V8 models. Please note — not compatible with F300 V6 models.

Product Overview

This OEM Yamaha F350 V8 Lower Unit delivers factory-level durability, precision engineering, and long-lasting performance. It has been fully serviced, inspected, and tested to ensure smooth shifting, perfect alignment, and excellent thrust in all conditions.
Built for Yamaha’s legendary 5.3L V8 platform, this unit provides strong torque transfer and reliability for offshore powerboats.

Specifications

• Horsepower: 350HP

• Engine Type: Yamaha 5.3L V8 Four Stroke

• Shaft Length: 30” (U / XXL)

• Year Compatibility: Fits all Yamaha F350 V8 engines (2008–2019)

• Rotation: Standard (Right-Hand)

• Part Number: 6AW-45300

• Compatibility Note: Fits F300 V8 models, not F300 V6

• Shift Shaft: Short type

Key Features

✅ OEM Yamaha Quality – Genuine Yamaha lower unit built to exact factory specifications.
✅ Standard Rotation – Right-hand rotation for single or starboard-side engine setups.
✅ Fully Serviced & Tested – Professionally rebuilt, pressure-tested, and quality-checked.
✅ New Components Installed – Includes new water pump kit and fresh marine gear lube.
✅ Easy Installation – Direct bolt-on replacement for quick and hassle-free setup.
✅ Corrosion-Resistant Finish – Designed for maximum durability in saltwater and freshwater environments.

Condition and Service

This used Yamaha F350 lower unit is in excellent condition, both cosmetically and functionally. It has been inspected, serviced, and fully tested to deliver top-tier performance.

Included Items:

• New Water Pump Kit

• Fresh Marine Gear Lube

• Pressure-tested Seals and Bearings

Cosmetic Condition: Excellent
Functional Condition: Fully operational and ready to install

Installation Guide

1. Remove your existing lower unit.

2. Align driveshaft and shift shaft.

3. Bolt the new unit securely in place.

4. Fill and verify gear oil.

5. Perform an operational test to confirm proper shifting.

This unit is ready to install — no modifications required.

Why Choose This Yamaha OEM Lower Unit?

• Factory Fit: Exact OEM replacement for Yamaha F350 V8.

• Tested Reliability: Each unit is professionally serviced and pressure-tested.

• Durable Performance: Built to handle heavy loads and offshore conditions.

• Value and Quality: OEM performance without the new-part price.

• Trusted Yamaha Engineering: Precision, power, and reliability you can count on.

Important Compatibility Information

Please confirm before purchasing:

• Engine Model: F350 V8 (2008–2019)

• Shaft Length: 30” (U / XXL)

• Rotation: Standard Right-Hand

• Shift Shaft: Short style

⚠️ Note: Compatible with F300 V8, not compatible with F300 V6 engines.

Frequently Asked Questions (FAQs)

1. What engines does this lower unit fit?

This OEM lower unit fits all Yamaha F350 V8 four-stroke outboards from 2008–2019 and is also compatible with F300 V8 models.

2. Is this a new or used lower unit?

It’s a used OEM Yamaha lower unit, fully serviced and tested to perform like new.

3. Does it include a warranty?

Most reconditioned Yamaha lower units include a limited warranty — please verify details with your seller.

4. What rotation is this lower unit?

This is a standard right-hand rotation model, typically used for single-engine or starboard-side setups.

5. What’s included with the unit?

Each lower unit includes a new water pump kit, fresh gear lube, and a fully serviced assembly, ready to bolt on.

6. How do I confirm compatibility?

Check your engine model, shaft length (30”), and rotation type. For assistance, consult your Yamaha parts manual or contact a certified Yamaha dealer.

Conclusion

The Used Yamaha F350 V8 Lower Unit is a genuine OEM replacement designed for power, durability, and precision.
Fully serviced, pressure-tested, and ready to install, this unit offers the performance and reliability Yamaha owners expect. Perfect for F350 V8 and compatible F300 V8 outboards from 2008–2019.