Yamaha 115HP 4-Stroke Left Hand (Counter Rotating) Lower Unit – 25” Shaft (2000–2014)

Reliable Power and Smooth Performance for Your Yamaha Outboard

The Yamaha 115HP 4-Stroke Left Hand Lower Unit is a premium, counter-rotating replacement lower unit designed for Yamaha F115 outboard engines (2000–2014 models). Built for dependability, this lower unit provides excellent torque, smooth gear shifting, and superior performance for port-side applications. Whether you’re replacing a damaged unit or upgrading for better reliability, this lower unit delivers the factory-grade performance Yamaha owners trust.

Product Overview

This used Yamaha 115HP 4-Stroke Counter Rotating Lower Unit is in excellent condition, fully inspected, and serviced by marine professionals. With a 25-inch (X) shaft length, it’s ready to bolt on and perform flawlessly. It’s ideal for boats using twin-engine setups, where counter-rotation is essential for balanced handling and smooth navigation.

Specifications:

• Horsepower: 115HP

• Engine Type: Yamaha 4-Stroke Outboard

• Shaft Length: 25” (X-Length)

• Rotation: Counter Rotating (Left Hand)

• Model Compatibility: Yamaha F115 4-Stroke models (2000–2014)

• Condition: Excellent – Fully serviced and tested

Key Features

✅ Counter Rotating Design – Perfect for twin-engine setups, reduces steering torque and enhances control.
✅ Fully Serviced – Professionally inspected, rebuilt, and tested for reliable performance.
✅ Plug-and-Play Installation – Simply unbolt your old unit and install this one — no modifications required.
✅ Includes New Components – Comes with a new water pump kit and fresh gear lube pre-installed.
✅ OEM Compatibility – Designed to fit perfectly on all Yamaha F115 4-Stroke outboards (2000–2014).

Installation

Installation is simple and straightforward:

1. Remove your existing lower unit.

2. Align and bolt this remanufactured unit in place.

3. Fill with gear oil (already pre-filled in most cases).

4. Test your outboard — you’re ready to hit the water!

Tip: Always confirm shaft length and rotation direction before purchasing to ensure compatibility with your setup.

Condition and Service

This unit has been professionally serviced, inspected, and reconditioned to meet OEM standards.
Included services and parts:

• New water pump kit

• Fresh marine gear lube

• Pressure-tested housing

• Smooth-shifting gears and bearings

Warranty and Support

We stand behind the quality of our marine parts.
This Yamaha 115HP Left Hand Lower Unit includes a 2-year limited warranty for your peace of mind.
Our team provides dedicated after-sale support to help with installation and compatibility questions.

Why Choose This Yamaha 115HP Counter Rotating Lower Unit

• Genuine Yamaha OEM quality

• Perfect for port-side twin-engine configurations

• Excellent durability and corrosion resistance

• Affordable alternative to buying new

• Backed by a service warranty

Frequently Asked Questions (FAQs)

1. What does counter-rotating mean?

Counter-rotating (left-hand) lower units spin the propeller in the opposite direction of standard right-hand models, providing improved control and balance in twin-engine setups.

2. How can I confirm if this fits my Yamaha outboard?

This unit fits all Yamaha F115 4-Stroke models from 2000 to 2014 with a 25-inch shaft length. Check your serial plate or owner’s manual to confirm compatibility.

3. Is this lower unit new or used?

It’s a used and fully serviced OEM Yamaha unit in excellent condition — professionally reconditioned and tested.

4. What’s included with this purchase?

You’ll receive a complete lower unit with a new water pump kit and fresh gear lube already installed — ready to bolt on.

5. What warranty is offered?

This product comes with a 2-year limited warranty, covering materials and workmanship.

Conclusion

The Yamaha 115HP 4-Stroke Left Hand (Counter Rotating) Lower Unit is the perfect replacement for your Yamaha outboard, delivering OEM-grade performance, durability, and smooth operation. With a 25” shaft, new pump kit, and gear lube included, this unit offers maximum value and reliability — ready to install and hit the water with confidence.