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 replaces F250 lowers with a 20" driveshaft.

The unit is black, You will need to paint it if you want to match your motor.

Has water cooled bearing carrier.

For standard rotation units.

Please view Technical tab for your specific model.

YEAR	MODEL NUMBER	DRIVE SHAFT	GEAR RATIO	PART NUMBER
2009	F225TLR	20	2:1	90-422-B20F
2008	F225TLR	20	2:1	90-422-B20F
2007	F225TLR	20	2:1	90-422-B20F

90-422-B25F replaces F250 lowers with a 25" driveshaft.

The unit is black, You will need to paint it if you want to match your motor.

Has water cooled bearing carrier.

For standard rotation units.

Please view Technical tab for your specific model.

YEAR	MODEL NUMBER	DRIVE SHAFT	GEAR RATIO	PART NUMBER
2018	F250XA	25	2:1	90-422-B25F
2017	F250XA	25	2:1	90-422-B25F
2016	F250XA	25	2:1	90-422-B25F
2015	F250XA	25	2:1	90-422-B25F
2014	F250XA	25	2:1	90-422-B25F
2013	F250XA	25	2:1	90-422-B25F
2012	F250XA	25	2:1	90-422-B25F
2011	F250TXR	25	2:1	90-422-B25F
2010	F250TXR	25	2:1	90-422-B25F
2009	F250BTXR	25	2:1	90-422-B25F
2009	F250TXR	25	2:1	90-422-B25F
2008	F250BTXR	25	2:1	90-422-B25F
2008	F250TXR	25	2:1	90-422-B25F
2007	F250TXR	25	2:1	90-422-B25F
2006	F250TXR	25	2:1	90-422-B25F
2005	F250TXRD	25	2:1	90-422-B25F

90-422-B30F replaces F250 lowers with a 30" driveshaft.

The unit is black, You will need to paint it if you want to match your motor.

Has water cooled bearing carrier.

For standard rotation units

Please view Technical tab for your specific model.

YEAR	MODEL NUMBER	DRIVE SHAFT	GEAR RATIO	SEI PART NUMBER
2013	F250UA	30	2:1	90-422-B30F
2012	F250UA	30	2:1	90-422-B30F
2011	F250TUR	30	2:1	90-422-B30F
2010	F250TUR	30	2:1	90-422-B30F
2009	F250BTUR	30	2:1	90-422-B30F
2009	F250TUR	30	2:1	90-422-B30F
2008	F250BTUR	30	2:1	90-422-B30F
2008	F250TUR	30	2:1	90-422-B30F
2007	F250TUR	30	2:1	90-422-B30F
2006	F250TUR	30	2:1	90-422-B30F
2005	F250TURD	30	2:1	90-422-B30F

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