Original price was: $1,572.25.$1,399.00Current price is: $1,399.00.
This aftermarket lower unit is a direct-fit replacement for Yamaha 250HP 4-stroke outboards (F250 series) built between 2005 and 2018. Designed with a water-cooled bearing carrier and dual water intakes, it also replaces early F250 models with side intakes.
Finished in durable black paint, it can be repainted to match your engine. Available in 20″, 25″, and 30″ shaft lengths, this unit is an ideal cost-effective solution for restoring performance without sacrificing reliability.
| Feature | Details |
|---|---|
| Compatible Engines | Yamaha 4‑Stroke F250 & select F225 |
| Horsepower | 250 HP |
| Rotation | Standard (Right‑Hand) |
| Gear Ratio | 2.00:1 |
| Shaft Lengths | 20″, 25″, 30″ |
| Water Intake | Dual & Side (Replaces both versions) |
| Bearing Carrier | Water‑cooled |
| Finish | Black – Paintable to match engine |
| Years Covered | 2005–2018 |
| Warranty | 3‑Year Fault‑Free Warranty |
| Part Numbers | 90‑422‑B20F (20″), 90‑422‑B25F (25″), 90‑422‑B30F (30″) |
Replaces F225 lowers with a 20″ driveshaft.
Replaces F250 lowers with a 25″ driveshaft.
Replaces F250 lowers with a 30″ driveshaft.
| Weight | 72 lbs |
|---|---|
| Dimensions | 60 × 37 × 10 in |
| Ratio/Shaft |
F250 / 20" Shaft / 2.00 ,F250 / 25" Shaft / 2.00 ,F250 / 30" Shaft / 2.00 |
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Original price was: $1,572.25.$1,399.00Current price is: $1,399.00.
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Original price was: $1,330.89.$1,199.00Current price is: $1,199.00.
In stock
Original price was: $1,330.89.$1,199.00Current price is: $1,199.00.In stock
Original price was: $1,921.90.$1,699.00Current price is: $1,699.00.
In stock
Original price was: $1,330.89.$1,199.00Current price is: $1,199.00.For further inquiries :
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Ryan Bailey –
The zinc-coated bolts haven’t rusted after months in brackish water. Installation was tool-free, and the unit outperforms my old OEM part. Silent, efficient, and built to last—highly recommend!
Jeffrey Dunn –
Arrived in two days! Perfect for my emergency repair.
Mrs. Amy Smith –
Matched my engine perfectly. Installation was a cakewalk!
Ellen Marsh –
Zinc bolts resist rust. Matches OEM performance—smart buy!
Darlene Underwood –
The splines slid into place without resistance. After 100 hours of runtime, the gears show zero wear, and the shifts are buttery-smooth. A flawless, budget-friendly replacement!
Cheryl Klein –
The included torque specs ensured a proper installation. Two months later, the unit performs like new—no noise, no leaks, no regrets. A perfect aftermarket solution!
Alexander Weaver –
The customer team helped me cross-reference compatibility with my vintage motor. The unit arrived early, installed smoothly, and performs like it was custom-made. Five stars for service and product!
Tracy Thomas –
Shifts crisply, no grinding. Better than I hoped!
Erica Martinez –
The pre-greased fittings saved me time during installation. After a month, the unit shows no wear and performs flawlessly. A must-buy for boat owners!