Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.
Yamaha 4 Stroke 115-130 HP Outboard Motor F115 ST90 is the lightest DOHC four-stroke outboard with an unparalleled power-to-weight ratio, featuring an outboard lower unit, and designed for sport, bay, and deep-V aluminum boats, pontoons, fishn skis, and RIB inflatables.
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.
| Weight | 65 lbs |
|---|---|
| Dimensions | 37 × 10 × 61 in |
| Ratio/Shaft |
2.15/20" / 4-Stroke ,2.15/25" / 4-Stroke |
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Jerry Reynolds –
All-season reliability—versatile pick!
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!
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!
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!
Travis Turner –
Followed the manual—done in 20 minutes. No complaints!
Lori Rodriguez –
Excel in tournaments and leisure. Unbeatable value!
Karen Thompson –
No special tools needed. Done in a coffee break!
Todd Richardson –
Quick support—durable choice!
Erik Hampton –
No leaks—trusty upgrade!
Robert Reid –
Instant joy—buy now!
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!
Ariel Woods –
Eco-packaging—heavy loads conquered!
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!
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!
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!
Scott Patrick –
Not a single leak. Performs like it’s brand new.
Julie Webb –
Matched my engine perfectly. Installation was a cakewalk!
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!
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!
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!
Kyle Black –
No downtime—quick swap!
David Chandler –
Thick housing—tough love!
Marc Thomas –
No guesswork—clear labels and diagrams. Works like OEM!
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!
Albert Pittman –
Thank-you card—classy touch. Flawless performance!
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!
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!
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!