Customer Service

+1 888 812 6287

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 0

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 1

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 2

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 3

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 0

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 1

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 2

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 3

New Aftermarket Yamaha F250 4-Stroke Outboard Lower Unit 90-422

Upgrade your Yamaha 250HP outboard with this SEI 90-422 Aftermarket Lower Unit, engineered as a direct-fit replacement for Yamaha F250 4-Stroke engines (2005–2018).This high-quality gearcase delivers OEM-level performance and reliability at a fraction of the cost — no modifications required. Built for durability and long service life, the unit features...

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

MPN: 90-422

SKU: SE90-422-B20F

Availability: In stock

Product type: Lower Unit

Product variants

Please hurry! Only 100 left in stock

Quantity:

Subtotal: $1,399.00

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 0

New Aftermarket Yamaha F250 4-Stroke Outboard Lower Unit 90-422

~~$1,550.00~~ $1,399.00

Choose options

Quantity:

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 0

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 1

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 2

New Yamaha 250HP 4-Stroke (2005–2018) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty image 3

New Aftermarket Yamaha F250 4-Stroke Outboard Lower Unit 90-422

~~$1,550.00~~ $1,399.00

Ratio/Shaft: F250 / 20" Shaft / 2.00 F250 / 20" Shaft / 2.00 F250 / 25" Shaft / 2.00 F250 / 30" Shaft / 2.00

Product variants

No content available.

No content available.

No content available.

No content available.

Related Products

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

Example product title

$1,399.00; ~~$1,550.00~~; $1,399.00; (-10%)
Unit price: per

1. Terms of Use By accessing or using this website, you agree to comply with and be bound by these Website Terms and Conditions of Use, all applicable laws, and regulations, and acknowledge that you are responsible for ensuring compliance with any applicable local laws. If you do not agree with any of these terms, you are prohibited from using or accessing this site. The materials on this website are protected by copyright and trademark law, and all rights are reserved. 2. Use License Mariners Warehouse grants you permission to temporarily download one copy of the materials (information or software) on its website for personal, non-commercial, transitory viewing only. This is the grant of a license, not a transfer of ownership, and under this license, you may not: Modify or copy the materials; Use the materials for any commercial purpose or public display (commercial or non-commercial); Attempt to decompile or reverse-engineer any software contained on Mariners Warehouse website; Remove any copyright or proprietary notations from the materials; or Transfer the materials to another person or “mirror” them on any other server. This license shall automatically terminate if you violate any of these restrictions and may be terminated by Mariners Warehouse at any time. Upon termination of your viewing of these materials or upon termination of this license, you must destroy any downloaded materials in your possession, whether in electronic or printed format. 3. Disclaimer The materials on Mariners Warehouse’s website are provided “as is.” Mariners Warehouse makes no warranties, either expressed or implied, and hereby disclaims and negates all other warranties, including, but not limited to, implied warranties or conditions of merchantability, fitness for a particular purpose, or non-infringement of intellectual property or other violations of rights. Furthermore, Mariners Warehouse does not warrant or make any representations concerning the accuracy, likely results, or reliability of the use of the materials on its website, or otherwise relating to such materials, or on any sites linked to this site. 4. Limitations of Liability In no event shall Mariners Warehouse or its suppliers be liable for any damages, including but not limited to, damages for loss of data or profits, or due to business interruption, arising out of the use or inability to use the materials on Mariners Warehouse website, even if Mariners Warehouse or an authorized representative has been notified orally or in writing of the possibility of such damage. Because some jurisdictions do not allow limitations on implied warranties, or limitations of liability for consequential or incidental damages, these limitations may not apply to you. 5. Revisions and Errata The materials appearing on Mariners Warehouse website could include technical, typographical, or photographic errors. Mariners Warehouse does not warrant that any of the materials on its website are accurate, complete, or current. Mariners Warehouse may make changes to the materials contained on its website at any time without notice. However, Mariners Warehouse makes no commitment to update the materials on its website. 6. Links to Third-Party Sites Mariners Warehouse has not reviewed all of the sites linked to its website and is not responsible for the contents of any such linked sites. The inclusion of any link does not imply endorsement by Mariners Warehouse of the site. Use of any linked website is at the user’s own risk. 7. Modifications to Site Terms of Use Mariners Warehouse may revise these Terms of Use for its website at any time without notice. By using this website, you agree to be bound by the then-current version of these Terms and Conditions of Use. 8. Governing Law Any claim relating to Mariners Warehouse website shall be governed by the laws of the State of Florida, without regard to its conflict of law provisions.