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90-421-B25F - SE421 Lower Unit Yamaha 76 Degree V6, 1.81 to 1, 4 Stroke, 25 Inch

SEI Marine 90-421-B25F - SE421 Lower Unit Yamaha 76 Degree V6, 1.81 to 1, 4 Stroke, 25 Inch
SEI Marine 90-421-B25F - SE421 Lower Unit Yamaha 76 Degree V6, 1.81 to 1, 4 Stroke, 25 InchSEI Marine 90-421-B25F - SE421 Lower Unit Yamaha 76 Degree V6, 1.81 to 1, 4 Stroke, 25 Inch

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$1,195.00

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SECURE CHECKOUT
SPEEDY DELIVERY
30-DAY RETURN
FULL WARRANTY

Part Number
90-421-B25F

Manufacturer
SEI Marine

See Recommended Installation Components below.

90-421-B25F - SE421 Lower Unit Yamaha 76 Degree V6, 1.81 to 1, 4 Stroke, 25 Inch

Replaces most Yamaha 76 Degree V6

  • Part Number : 90-421-B25F
  • Engine Type : Yamaha 4 Stroke V6 200-225hp
  • Gear Ratio : 2:1
  • Prop Rotation : RH
  • Shaft Length : 25”

Not designed for Yamaha F250 four stroke 250 HP motors

Year Model Number Shaft Gear Ratio
2019 F200XA 25 2:01
2018 F200XA 25 2:01
2018 F225XA 25 2:01
2017 F200XA 25 2:01
2017 F225XA 25 2:01
2016 F200XA 25 2:01
2016 F225XA 25 2:01
2015 F200XA 25 2:01
2015 F225XA 25 2:01
2014 F200XA 25 2:01
2014 F225XA 25 2:01
2013 F200XA 25 2:01
2013 F225XA 25 2:01
2012 F200XA 25 2:01
2012 F225XA 25 2:01
2011 F200XA 25 2:01
2011 F225XA 25 2:01
2010 F200TXR 25 2:01
2010 F225TXR 25 2:01
2009 F200TXR 25 2:01
2009 F225TXR 25 2:01
2008 F200TXR 25 2:01
2008 F225TXR 25 2:01
2007 F200TXR 25 2:01
2007 F225TXR 25 2:01
2006 F200TXR 25 2:01
2006 F225TXR 25 2:01
2005 F200TXRD 25 2:01
2005 F225TXRD 25 2:01
2004 F200TXRC 25 2:01
2004 F225TXRC 25 2:01
2003 F200TXRB 25 2:01
2003 F225TXRB 25 2:01
2002 F200TXRA 25 2:01
2002 F225TXRA 25 2:01


Warranty (PDF)
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SEI Marine 90-421-b25f - Se421 Lower Unit Yamaha 76 Degree V6, 1.81 To 1, 4 Stroke, 25 Inch is equivalent to parts:

  • 6FJ-45300-03-8D Yamaha Marine
  • 69J-45300-25-8D Yamaha Marine
  • 69J-45300-24-8D Yamaha Marine
  • 69J-45300-23-8D Yamaha Marine
SEI Gearcases & Complete Outdrives
SEI Complete Trim & Tilt Units
SEI is the largest manufacturer of aftermarket sterndrives and outboard lower units in the world. Every SEI complete gearcase and outdrive carries a 3-Year No-Fault Warranty. SEI also manufactures complete tilt and trim uints as well as shafting and other individual parts. Their subsidiary company API Marine manfuactures a quality line of aftermarket outboard starter and trim motors.

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