Yamaha F200–F300 Lower Unit Replacement | 2010–Current

Replace your Yamaha 4-stroke lower unit with this high-performance gearcase designed to fit a wide range of F200 to F300 outboards (2010–present). Perfect for engines with a 25-inch driveshaft, this complete unit offers factory-level compatibility without the dealership cost.

• ✅ Key Features:

  • ⚙️ Fits select Yamaha F200–F300 4-stroke engines (2010–2024)

  • Supports both 25″ and 30″ shaft length models

  • Includes water pump, shift shaft, driveshaft & internal gears

  • Pre-filled with gear lube — ready for bolt-on installation

  • Built to OEM specs for smooth shifting and peak durability

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  ⚠️ Exclusions – Will Not Fit:

  • Engines equipped with a two-piece driveshaft

  • Engines using TERE (Thrust Enhancing Reverse Exhaust) technology

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  OEM Part Numbers Replaced:

  This unit replaces Yamaha part numbers:

  • 6CE-45300-00-8D

  • 6CE-45300-01-8D

  • 6CE-45300-02-8D

  • 6CE-45300-03-8D

  • 6CE-45300-04-8D

  • 6CE-45300-05-8D

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  Fitment Overview:

  This replacement lower unit fits dozens of Yamaha models, including:

  ✅ 25″ Shaft (2010–2024):

  F225XB, F250XB, F300XA, F300XCA, VF200XA, VF250XA, and more.

  ✅ 30″ Shaft (2014–2021):

  F250UCA, F300UCA, F300BETU

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  Why Choose This Lower Unit?

  • Matches factory Yamaha design for plug-and-play replacement

  • Designed for long-term durability in salt and freshwater

  • Shipped quickly and securely to minimize downtime

  • Backed by expert support for fitment and install questions

Need Help Confirming Fit?

Send us your Yamaha outboard’s model and serial number. Our experts will verify compatibility to ensure the perfect fit.

Which Yamaha outboards is this lower unit compatible with?

This lower unit fits Yamaha F200, F225, F250, F300, and VF200/VF250 4-stroke outboards with a 25-inch shaft and 1.75:1 gear ratio, manufactured between 2010 and 2024. Supported model numbers include F300XA, F250XB, F225XCA, VF250XA, and many more.

Which engines are not compatible with this lower unit?

This unit does not fit engines that have:

• A two-piece driveshaft

• The TERE (Thrust Enhancing Reverse Exhaust) feature

Always confirm your engine’s specifications before ordering.

What are the OEM part numbers this unit replaces?

This replacement unit is a direct fit for Yamaha OEM part numbers:

• 6CE-45300-00-8D

• 6CE-45300-01-8D

• 6CE-45300-02-8D

• 6CE-45300-03-8D

• 6CE-45300-04-8D

• 6CE-45300-05-8D

What years and models are supported by this unit?

This lower unit supports Yamaha outboards from 2010 through 2024, including models like:

• F300XCA, F250XB, F225XCA

• VF250XA, VF200XB, F300XA2
  Full model compatibility includes over 60 configurations. Contact us with your model number for quick confirmation.

⚙️ What gear ratio does this lower unit use?

This unit features a 1.75:1 gear ratio, which matches the factory standard for many Yamaha 4-stroke 200–300HP outboards with 25-inch shafts.

️ Is this lower unit pre-assembled and ready to install?

Yes! It comes fully assembled with the driveshaft, shift shaft, water pump, and internal gears. It’s pre-lubed and bolt-on ready — no special tools or modifications needed.

Can I reuse my old propeller with this lower unit?

Absolutely. This lower unit is compatible with most standard Yamaha-style propellers used on 1.75:1 ratio outboards in the F200–F300 range.

How can I confirm this will fit my Yamaha engine?

Just send us your engine’s model and serial number, and our team will verify the exact compatibility for you.

⚙️ Which Yamaha engines with a 30″ shaft does this lower unit fit?

This lower unit fits Yamaha F250UCA, F300UCA, and F300BETU 4-stroke outboards with a 30-inch shaft and 1.75:1 gear ratio, manufactured between 2014 and 2021.

What specific model years are compatible with this 30″ lower unit?

Supported model years include:

• 2021: F250UCA, F300UCA

• 2020: F300UCA

• 2019: F250UCA, F300UCA

• 2018: F250UCA, F300UCA

• 2017: F250UCA, F300UCA

• 2016: F250UCA, F300UCA, F300BETU

• 2015: F250UCA, F300UCA

• 2014: F250UCA, F300UCA

Does this 30″ unit fit Yamaha engines with TERE or two-piece driveshafts?

No. This lower unit is not compatible with Yamaha outboards that feature:

• TERE (Thrust Enhancing Reverse Exhaust)

• A two-piece driveshaft design

Always verify your engine specs before purchase.

Can I use this unit to replace Yamaha OEM parts?

Yes. This unit directly replaces Yamaha OEM part numbers:

• 6CE-45300-00-8D

• 6CE-45300-01-8D

• 6CE-45300-02-8D

• 6CE-45300-03-8D

• 6CE-45300-04-8D

• 6CE-45300-05-8D

Is it pre-lubed and ready to install?

Yes. This gearcase arrives fully assembled, pre-filled with gear lube, and ready for installation — no additional setup or modifications required.

4 Stroke 25″ Driveshaft – Fitment Chart

Fitment Chart: Compatible Yamaha Outboard Models

This lower unit fits a wide range of Yamaha 4-stroke outboards from 2010 to 2024 with 25-inch shaft length and a 1.75:1 gear ratio. Below is the full compatibility list:

Fitment Chart: Yamaha Outboards with 30″ Shaft (2014–2021)

This lower unit fits specific Yamaha 4-stroke outboards with a 30-inch driveshaft and 1.75:1 gear ratio, produced between 2014 and 2021.