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SEI 90-422 - 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20", 25", 30" Shafts –
SEI 90-422 - 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20", 25", 30" Shafts – - Image 2
SEI 90-422 - 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20", 25", 30" Shafts – - Image 3
SEI 90-422 - 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20", 25", 30" Shafts – - Image 4
SEI 90-422 - 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20", 25", 30" Shafts – - Image 5

SEI 90-422 – 4 Stroke Aftermarket Lower Unit – Replacement for Yamaha Outboard 250HP – Fits 20″, 25″, 30″ Shafts –

Original price was: $1,416.45.Current price is: $1,349.00.

“Yamaha 250 HP 4 Stroke ST90-422 outboard lower unit replacement with dual w

90-422-B20F (F250 / 20″ Shaft / 2.00 Ratio) Replaces F225 lowers with a 20″ driveshaft.

  • F225TLR Series: 2009-2007

90-422-B25F (F250 / 25″ Shaft / 2.00 Ratio) Replaces F250 lowers with a 25″ driveshaft.

  • F250XA Series: 2018-2012
  • F250TXR/BTXR Series:
    • 2011-2010: F250TXR
    • 2009-2008: F250BTXR, F250TXR
    • 2007-2006: F250TXR
    • 2005: F250TXRD

90-422-B30F (F250 / 30″ Shaft / 2.00 Ratio) Replaces F250 lowers with a 30″ driveshaft.

  • F250UA Series: 2013-2012
  • F250TUR/BTUR Series:
    • 2011-2010: F250TUR
    • 2009-2008: F250BTUR, F250TUR
    • 2007-2006: F250TUR
    • 2005: F250TURD

      90-422-B20F (F250 / 20″ Shaft / 2.00 Ratio) Replaces F225 lowers with a 20″ driveshaft.

      • F225TLR Series: 2009-2007

      90-422-B25F (F250 / 25″ Shaft / 2.00 Ratio) Replaces F250 lowers with a 25″ driveshaft.

      • F250XA Series: 2018-2012
      • F250TXR/BTXR Series:
        • 2011-2010: F250TXR
        • 2009-2008: F250BTXR, F250TXR
        • 2007-2006: F250TXR
        • 2005: F250TXRD

      90-422-B30F (F250 / 30″ Shaft / 2.00 Ratio) Replaces F250 lowers with a 30″ driveshaft.

      • F250UA Series: 2013-2012
      • F250TUR/BTUR Series:
        • 2011-2010: F250TUR
        • 2009-2008: F250BTUR, F250TUR
        • 2007-2006: F250TUR
        • 2005: F250TURD

ater intakes and water-cooled bearing carrier for superior performance and cooling. 100% genuine and authentic product.”

Search your model no. for perfect fit

✔️
Manufacturer Warranty: 3-Year

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Return Policy: 60-day, hassle-free returns

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Trusted by 6,000+ boaters across the USA

SKU: ST-90-422 Categories: , , ,

Description

Replaces F250 lower units with dual water intakes.

Also replaces early F250 lower units with side water intakes.
This unit has the watercooled bearing carrier.

It is painted black but you can paint it to match your engine.

90-422-B20F (F250 / 20″ Shaft / 2.00 Ratio)

Replaces F225 lowers with a 20″ driveshaft.

  • F225TLR Series: 2009-2007

90-422-B25F (F250 / 25″ Shaft / 2.00 Ratio)

Replaces F250 lowers with a 25″ driveshaft.

  • F250XA Series: 2018-2012
  • F250TXR/BTXR Series:
    • 2011-2010: F250TXR
    • 2009-2008: F250BTXR, F250TXR
    • 2007-2006: F250TXR
    • 2005: F250TXRD

90-422-B30F (F250 / 30″ Shaft / 2.00 Ratio)

Replaces F250 lowers with a 30″ driveshaft.

  • F250UA Series: 2013-2012
  • F250TUR/BTUR Series:
    • 2011-2010: F250TUR
    • 2009-2008: F250BTUR, F250TUR
    • 2007-2006: F250TUR
    • 2005: F250TURD

Additional information

Weight 72 lbs
Dimensions 60 × 37 × 10 in
Ratio/Shaft

F250 / 20" Shaft / 2.00, F250 / 25" Shaft / 2.00, F250 / 30" Shaft / 2.00

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