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90-428-B25F - SE428 Lower Unit Yamaha V6, 2.0 to 1, 4 Stroke, 25 Inch, Counter Rotation

SEI Marine 90-428-B25F - SE428 Lower Unit Yamaha V6, 2.0 to 1, 4 Stroke, 25 Inch, Counter Rotation
SEI Marine 90-428-B25F - SE428 Lower Unit Yamaha V6, 2.0 to 1, 4 Stroke, 25 Inch, Counter RotationSEI Marine 90-428-B25F - SE428 Lower Unit Yamaha V6, 2.0 to 1, 4 Stroke, 25 Inch, Counter Rotation

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$1,395.00

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FULL WARRANTY

Part Number
90-428-B25F

Manufacturer
SEI Marine

See Recommended Installation Components below.

90-428-B25F - SE428 Lower Unit Yamaha V6, 2.0 to 1, 4 Stroke, 25 Inch, Counter Rotation

Replaces most 200HP/225HP and some 250HP Yamaha 76 Degree V6 Counter Rotation Motors with a 1.81 Ratio.

Replaces most 200HP/225HP Yamaha V6 4-Stroke Counter Rotation Motors with a 2.00 Ratio.

  • Part Number : 90-428-B25F
  • Engine Type : Yamaha 4 Stroke V6 200
  • Gear Ratio : 2:1
  • Prop Rotation : LH
  • Shaft Length : 25”

For Counter Rotation only, do not use for Standard Rotation.

Year Model Number Shaft Gear Ratio
2019 LF200XA 25 2:01
2018 LF200XA 25 2:01
2017 LF200XA 25 2:01
2016 LF200XA 25 2:01
2015 LF200XA 25 2:01
2014 LF200XA 25 2:01
2013 LF200XA 25 2:01
2012 LF200XA 25 2:01
2011 LF200XA 25 2:01
2010 LF200TXR 25 2:01
2010 LF225TXR 25 2:01
2009 LF200TXR 25 2:01
2009 LF225TXR 25 2:01
2008 LF200TXR 25 2:01
2008 LF225TXR 25 2:01
2007 LF200TXR 25 2:01
2007 LF225TXR 25 2:01
2006 LF200TXR 25 2:01
2006 LF225TXR 25 2:01
2005 LF200TXRD 25 2:01
2005 LF225TXRD 25 2:01
2004 LF200TXRC 25 2:01
2004 LF225TXRC 25 2:01
2003 LF200TXRB 25 2:01
2003 LF225TXRB 25 2:01
2002 LF200TXRA 25 2:01
2002 LF225TXRA 25 2:01


Warranty (PDF)
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SEI Marine 90-428-b25f - Se428 Lower Unit Yamaha V6, 2.0 To 1, 4 Stroke, 25 Inch, Counter Rotation is equivalent to parts:

  • 69K-45300-25-8D Yamaha Marine
  • 69K-45300-24-8D Yamaha Marine
  • 69K-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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