-10%
Yamaha 4 Stroke 115-130 HP
Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405
Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405
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Yamaha 4 Stroke 115-130 HP
Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405
Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405
SE404 (REPLACES SOME YAMAHA 2-STROKE AND 4-STROKE 75-100 HP
Yamaha Aftermarket Lower Unit – Replaces 75–100HP 2/4 Stroke – 2.0 & 2.3 Gear Ratios – 18 Spline – 20" & 25" Shafts – SEI 90-404 Original price was: $1,326.45.Current price is: $1,195.00.
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Yamaha 90 degree 150-200 HP Counter Rotation
Yamaha 90° Aftermarket Lower Unit – Replaces 150–200HP 2/4 Stroke – Fits 20" & 25" Shafts – SEI 90-416 Original price was: $1,326.45.Current price is: $1,195.00.

Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405

(28 customer reviews)

Original price was: $1,326.45.Current price is: $1,195.00.

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SKU: ST-90-405 Categories: , , , ,
Yamaha
Description

Replaces all Yamaha V-4 2-Stroke Standard Rotation Lower Units.
115HP and 130 HP only
Also fits 2000-2014 F115 4 stroke Standard Rotation models
The paint color is Black. You can paint it to match.

Use CRTL+F to Search for your Engine Model Number

Year Model Number Shaft Gear Ratio SEI part number
2010 115TLR 20 2:1 90-405-A20
2009 115TLR 20 2:1 90-405-A20
2008 115TLR 20 2:1 90-405-A20
2007 115TLR 20 2:1 90-405-A20
2006 115TLR 20 2:1 90-405-A20
2005 115TLRD 20 2:1 90-405-A20
2004 115TLRC 20 2:1 90-405-A20
2004 130TLRC 20 2:1 90-405-A20
2003 115TLRB 20 2:1 90-405-A20
2003 130TLRB 20 2:1 90-405-A20
2002 115TLRA 20 2:1 90-405-A20
2002 130TLRA 20 2:1 90-405-A20
2001 115TLRZ 20 2:1 90-405-A20
2001 130TLRZ 20 2:1 90-405-A20
2000 115TLRY 20 2:1 90-405-A20
2000 130TLRY 20 2:1 90-405-A20
2000 C115TLRY 20 2:1 90-405-A20
1999 115TLRX 20 2:1 90-405-A20
1999 130TLRX 20 2:1 90-405-A20
1999 S115TLRX 20 2:1 90-405-A20
1999 S130TLRX 20 2:1 90-405-A20
1999 C115TLRX 20 2:1 90-405-A20
1998 115TLRW 20 2:1 90-405-A20
1998 130TLRW 20 2:1 90-405-A20
1998 S115TLRW 20 2:1 90-405-A20
1998 S130TLRW 20 2:1 90-405-A20
1998 C115TLRW 20 2:1 90-405-A20
1997 115TLRV 20 2:1 90-405-A20
1997 130TRLV 20 2:1 90-405-A20
1997 S115TLRV 20 2:1 90-405-A20
1997 P115TLRV 20 2:1 90-405-A20
1997 S130TLRV 20 2:1 90-405-A20
1997 C115TLRV 20 2:1 90-405-A20
1996 115TLRU 20 2:1 90-405-A20
1996 130TLRU 20 2:1 90-405-A20
1996 C115TLRU 20 2:1 90-405-A20
1996 P115TLRU 20 2:1 90-405-A20
1996 S115TLRU 20 2:1 90-405-A20
1996 S130TLRU 20 2:1 90-405-A20
1995 115TLRT 20 2:1 90-405-A20
1995 130TRLT 20 2:1 90-405-A20
1995 C115TLRT 20 2:1 90-405-A20
1995 P115TLRT 20 2:1 90-405-A20
1994 115TLRS 20 2:1 90-405-A20
1994 130TLRS 20 2:1 90-405-A20
1994 C115TLRS 20 2:1 90-405-A20
1994 P115TLRS 20 2:1 90-405-A20
1993 115TLRR 20 2:1 90-405-A20
1993 130TLRR 20 2:1 90-405-A20
1993 C115TLRR 20 2:1 90-405-A20
1993 P115TLRR 20 2:1 90-405-A20
1992 115TLRQ 20 2:1 90-405-A20
1992 130TLRQ 20 2:1 90-405-A20
1992 C115TLRQ 20 2:1 90-405-A20
1991 115TLRP 20 2:1 90-405-A20
1991 130TLRP 20 2:1 90-405-A20
1991 C115TLRP 20 2:1 90-405-A20
1990 115ETLD 20 2:1 90-405-A20
1990 130ETLD 20 2:1 90-405-A20
1989 115ETLF 20 2:1 90-405-A20
1989 130ETLF 20 2:1 90-405-A20
1988 115ETLG 20 2:1 90-405-A20
1988 130ETLG 20 2:1 90-405-A20
1987 115ETLH 20 2:1 90-405-A20
1987 130ETLH 20 2:1 90-405-A20
1986 115ETLJ 20 2:1 90-405-A20
1985 115ETLK 20 2:1 90-405-A20
1984 115ETLN 20 2:1 90-405-A20

 

FOR-

Replaces the gear case on most Yamaha V-4 2-Stroke with 25 inch drive shaft.

Please view Technical tab for your specific model.

Use CRTL+F to Search for your Engine Model Number

Year Model Number Shaft Gear Ratio SEI part number
2005 115TXRD 25 2:1 90-405-A25
2004 115TXRC 25 2:1 90-405-A25
2004 130TXRC 25 2:1 90-405-A25
2003 115TXRB 25 2:1 90-405-A25
2003 130TXRB 25 2:1 90-405-A25
2002 115TXRA 25 2:1 90-405-A25
2002 130TXRA 25 2:1 90-405-A25
2001 115TXRZ 25 2:1 90-405-A25
2001 130TXRZ 25 2:1 90-405-A25
2000 115TXRY 25 2:1 90-405-A25
2000 130TXRY 25 2:1 90-405-A25
2000 C115TXRY 25 2:1 90-405-A25
1999 115TXRX 25 2:1 90-405-A25
1999 130TXRX 25 2:1 90-405-A25
1999 S115TXRX 25 2:1 90-405-A25
1999 S130TXRX 25 2:1 90-405-A25
1999 C115TXRX 25 2:1 90-405-A25
1998 115TXRW 25 2:1 90-405-A25
1998 130TXRW 25 2:1 90-405-A25
1998 S115TXRW 25 2:1 90-405-A25
1998 S130TXRW 25 2:1 90-405-A25
1998 C115TXRW 25 2:1 90-405-A25
1997 115TXRV 25 2:1 90-405-A25
1997 130TXRV 25 2:1 90-405-A25
1997 S115TXRV 25 2:1 90-405-A25
1997 S130TXRV 25 2:1 90-405-A25
1997 C115TXRV 25 2:1 90-405-A25
1996 115TXRU 25 2:1 90-405-A25
1996 130TXRU 25 2:1 90-405-A25
1996 C115TXRU 25 2:1 90-405-A25
1996 S115TXRU 25 2:1 90-405-A25
1996 S130TXRU 25 2:1 90-405-A25
1995 115TXRT 25 2:1 90-405-A25
1995 130TXRT 25 2:1 90-405-A25
1995 C115TXRT 25 2:1 90-405-A25
1994 115TXRS 25 2:1 90-405-A25
1994 130TXRS 25 2:1 90-405-A25
1994 C115TXRS 25 2:1 90-405-A25
1993 115TXRR 25 2:1 90-405-A25
1993 130TXRR 25 2:1 90-405-A25
1993 C115TXRR 25 2:1 90-405-A25
1992 115TXRQ 25 2:1 90-405-A25
1992 130TXRQ 25 2:1 90-405-A25
1992 C115TXRQ 25 2:1 90-405-A25
1991 115TXRP 25 2:1 90-405-A25
1991 130TXRP 25 2:1 90-405-A25
1991 C115TXRP 25 2:1 90-405-A25
1990 115ETXD 25 2:1 90-405-A25
1990 130ETXD 25 2:1 90-405-A25
1989 115ETXF 25 2:1 90-405-A25
1989 130ETXF 25 2:1 90-405-A25
1988 115ETXG 25 2:1 90-405-A25
1988 130ETXG 25 2:1 90-405-A25
1987 115ETXH 25 2:1 90-405-A25
1987 130ETXH 25 2:1 90-405-A25
1986 115ETXJ 25 2:1 90-405-A25
1985 115ETXK 25 2:1 90-405-A25
1984 115ETXN 25 2:1 90-405-A25

 

FOR –

Replaces F115 Yamaha gear cases on 4-Stroke Engines with 20 inch drive shaft.
(115HP 4-Stroke Only 2000-2014 Standard Rotation)

Use CRTL+F to Search for your Engine Model Number

Year Model Number Shaft Gear Ratio SEI part number
2014 F115LA 20 2.15:1 90-405-B20F
2013 F115LA 20 2.15:1 90-405-B20F
2012 F115LA 20 2.15:1 90-405-B20F
2011 F115TLR 20 2.15:1 90-405-B20F
2011 F115LA 20 2.15:1 90-405-B20F
2010 F115TLR 20 2.15:1 90-405-B20F
2009 F115TLR 20 2.15:1 90-405-B20F
2008 F115TLR 20 2.15:1 90-405-B20F
2007 F115TLR 20 2.15:1 90-405-B20F
2006 F115TLR 20 2.15:1 90-405-B20F
2005 F115TLR 20 2.15:1 90-405-B20F
2005 F115TLRD 20 2.15:1 90-405-B20F
2004 F115TLRC 20 2.15:1 90-405-B20F
2003 F115TLRB 20 2.15:1 90-405-B20F
2002 F115TLRA 20 2.15:1 90-405-B20F
2001 F115TLRZ 20 2.15:1 90-405-B20F
2000 F115TLRY 20 2.15:1 90-405-B20F

 

FOR –

Replaces Yamaha gear cases on 4-Stroke Engines with 25 inch drive shaft.
(F115 115hp Standard Rotation 2000-2014 only)

Use CRTL+F to Search for your Engine Model Number

YEAR MODEL NUMBER GEAR RATIO SEI PART #
2014 F115XA 2.15:1 90-405-B25F
2013 F115XA 2.15:1 90-405-B25F
2012 F115XA 2.15:1 90-405-B25F
2011 F115TXR 2.15:1 90-405-B25F
2011 F115XA 2.15:1 90-405-B25F
2010 F115TXR 2.15:1 90-405-B25F
2009 F115TXR 2.15:1 90-405-B25F
2008 F115TXR 2.15:1 90-405-B25F
2007 F115TXR 2.15:1 90-405-B25F
2006 F115TXR 2.15:1 90-405-B25F
2005 F115TXR 2.15:1 90-405-B25F
2005 F115TXRD 2.15:1 90-405-B25F
2004 F115TXRC 2.15:1 90-405-B25F
2003 F115TXRB 2.15:1 90-405-B25F
2002 F115TXRA 2.15:1 90-405-B25F
2001 F115TXRZ 2.15:1 90-405-B25F
2000 F115TXRY 2.15:1 90-405-B25F
Additional information
Weight 65 lbs
Dimensions 37 × 10 × 61 in
Ratio/Shaft

2:1 Ratio / 20" Shaft / 2 Stroke / RH Rotation

,

2:1 Ratio / 25" Shaft / 2 Stroke / RH Rotation

,

2.15:1 Ratio / 20" Shaft / 4 Stroke / RH Rotation

,

2.15:1 Ratio / 25" Shaft / 4 Stroke / RH Rotation
Brand

Brand

Yamaha

Reviews (28)
4.2
28 reviews
14
6
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28 reviews for Yamaha Aftermarket Lower Unit – Replaces 115–130HP 4 Stroke – Fits 20″ & 25″ Shafts – SEI 90-405

Clear filters

  1. Jerry Reynolds –

    All-season reliability—versatile pick!

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  2. Amanda Davis –

    The splines slid into place with zero hassle. After a month, the unit shows no wear and performs like new. A flawless, budget-friendly replacement!

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  3. John Stevens –

    The splines fit snugly—no play or vibration. After 30 hours, the unit runs silently and cool. A flawless replacement for half the OEM cost!

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  4. Donna Kelly –

    I’ve used this for six fishing trips now, including rough offshore conditions. It handles sudden throttle changes without hesitation, and there’s no play in the prop shaft. Feels like a factory part!

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  5. Travis Turner –

    Followed the manual—done in 20 minutes. No complaints!

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  6. Lori Rodriguez –

    Excel in tournaments and leisure. Unbeatable value!

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  7. Karen Thompson –

    No special tools needed. Done in a coffee break!

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  8. Todd Richardson –

    Quick support—durable choice!

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  9. Erik Hampton –

    No leaks—trusty upgrade!

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  10. Robert Reid –

    Instant joy—buy now!

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  11. Michael Watson –

    24/7 support and a leak-proof guarantee—stellar combo. The unit arrived early, runs quiet, and handles hurricane swells. A standout in aftermarket parts!

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  12. Ariel Woods –

    Eco-packaging—heavy loads conquered!

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  13. Julie Thomas –

    This unit arrived with a protective film on the housing—nice touch. Installation took 40 minutes, and performance is whisper-quiet. Worth every penny for peace of mind!

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  14. Laurie Oneal –

    The pre-greased fittings saved me time during installation. After 25 hours of runtime, the unit performs like new. A must-buy for practical boaters!

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  15. Thomas Carson –

    The unit arrived with a handwritten thank-you card. Installed it in 25 minutes, and performance is flawless. OEM quality without the markup—zero buyer’s remorse!

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  16. Scott Patrick –

    Not a single leak. Performs like it’s brand new.

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  17. Kristina Gomez –

    Tested this in saltwater estuaries for weeks—zero rust on the stainless steel components. Shifts are crisp, the oil stays clean, and the price beats OEM by half. A saltwater angler’s dream!

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  18. Julie Webb –

    Matched my engine perfectly. Installation was a cakewalk!

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  19. Albert Pittman –

    Thank-you card—classy touch. Flawless performance!

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  20. Cindy Baird –

    The splines aligned perfectly—no adjustments needed. After two months, the unit runs cooler and quieter than my OEM part. A budget-friendly gem with premium performance!

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  21. David Chandler –

    Thick housing—tough love!

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  22. Roger Hunter –

    The anti-corrosion coating is military-grade. After saltwater immersion, it looks pristine. Shifts are silent, the price is fair, and delivery was overnight. A saltwater boater’s best friend!

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  23. Kyle Black –

    No downtime—quick swap!

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  24. Daniel Woodward –

    After months of hesitation, I finally replaced my old unit with this model. The installation took 40 minutes with basic tools, and it’s been leak-free through 20+ fishing trips. Smooth shifts and no corrosion—worth every penny!

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  25. Marc Thomas –

    No guesswork—clear labels and diagrams. Works like OEM!

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  26. Steven Lee –

    Eco-friendly packaging impressed me. The unit handles heavy loads effortlessly—no complaints after 60 days. A green choice for eco-conscious boaters!

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  27. Ryan Deleon –

    After a flawed Amazon unit, this saved my season. Crisp shifts, bone-dry seals, stellar service. Finally, a company that cares about boaters!

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  28. Jennifer Brown –

    The anti-vibration design reduces cockpit noise significantly. Installed it in 45 minutes, and shifts are buttery-smooth. Premium feel without the premium price!

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Only logged in customers who have purchased this product may leave a review.

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