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250 HP - 4 Stroke Yamaha Counter Rotation lower unit 90-429 SE429
250 HP – 4 Stroke Yamaha Counter Rotation
March 21, 2018
COUPLER / Remaining Charge
August 23, 2020
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250 HP – Yamaha 4 Stroke

$1,295.00

Yamaha 250 Lower Unit which is an aftermarket Gearbox and comes with 3-year warranty. Available in two different gear ratio / shaft variations.

$
SKU: 90-422 Category:
Description

Yamaha 250 Lower Unit

Yamaha 250 HP 4 Stroke lower unit

Yamaha 250 Lower Unit which is an aftermarket Gearbox and comes with 3-year warranty. Available in two different gear ratio / shaft variations.

Please make sure to choose correct gear ratio / shaft length before ordering it online.

With 3 year fault free warranty you have peace of mind to replace your faulty lower unit and make your Yamaha outboard engine upgraded with SEI Yamaha 250 Lower Unit. The lower unit is also known as the outboard gearbox in case you are not a mechanic or mechanic asked you to buy one yourself. This high-quality aftermarket solution brings reliability and peace of mind to boat owners, repair shops, and marine enthusiasts across the United States and beyond.

Highlights:

  • Aftermarket Yamaha outboard lower unit which is designed for Yamaha 250 horsepower engines.
  • Comes with 3-year warranty for added confidence.
  • It’s not a China product and this aftermarket alternative stands due to it’s pricing and warranty.
  • Ideal for boat owners, repair shops, and marine enthusiasts seeking reliable performance.

This Yamaha 250 Lower Unit from SEI is obviously a good replacement unit specially when you are looking for the mix of quality and budget. It delivers the performance you expect from an OEM unit with the added benefit of a 3-year warranty. Rest assured that your investment is protected, and you can rely on this gearbox.

Fault Free Warranty: One of the standout features of this aftermarket lower unit is its impressive 3-year warranty. Unlike OEM units that typically offers 1-year warranty, the SEI Yamaha 250 Lower Unit is backed by an extended warranty, giving you peace of mind while you are in the water.

Not a China Product: Test for Quality, and the SEI brand takes pride in offering an alternative that’s not sourced from China.

Order Yours Now: Whether you’re a boat owner, a marine enthusiast, or a professional repair shop, the SEI Yamaha 250 Lower Unit is the solution for your outboard engine.

A reliable aftermarket gearbox designed for Yamaha 250 engines, and enjoy the benefits of an extended 3-year warranty. This exceptional product is not only ideal for the United States but also in demand in countries such as Canada, Australia, and the United Kingdom.

While the primary focus is on the United States, this SEI Yamaha 250 Lower Unit is sought after in some other countries including Canada, Australia, and the United Kingdom. If you are abroad, you might have international engine model number on your outboard engine If the outboard is not a US model.

 

Technical table for part number 90-422-B20F (2:1 gear ratio and 20″ drive shaft)

YEAR ENGINE MODEL NUMBER
2009 F225TLR
2008 F225TLR
2007 F225TLR

 

 

 

 

Technical table for part number 90-422-B25F (2:1 gear ratio and 25″ drive shaft)

YEAR MODEL NUMBER
2018 F250XA
2017 F250XA / F250XCA
2016 F250XA
2015 F250XA
2014 F250XA
2013 F250XA
2012 F250XA
2011 F250TXR
2010 F250TXR
2009 F250BTXR
2009 F250TXR
2008 F250BTXR
2008 F250TXR
2007 F250TXR
2006 F250TXR
2005 F250TXRD

Technical table for part number 90-422-B30F (2:1 gear ratio and 30″ drive shaft)

YEAR MODEL NUMBER
2013 F250UA
2012 F250UA
2011 F250TUR
2010 F250TUR
2009 F250BTUR
2009 F250TUR
2008 F250BTUR
2008 F250TUR
2007 F250TUR
2006 F250TUR
2005 F250TURD
Additional information
Motor/Shaft Size

F250/20" shaft, F250/25" shaft, F250/30" shaft

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