Original price was: $1,552.89.$1,399.00Current price is: $1,399.00.
“Yamaha 76 Degree V6 200-250 HP Counter Rotation Outboard Lower Unit 90-428. Replace your old outboard lower unit with this premium quality, 100% brand new & authentic Yamaha V6 lower unit, designed for counter rotation use only.”
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Manufacturer Warranty: 3-Year
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Return Policy: 60-day, hassle-free returns
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Trusted by 6,000+ boaters across the USA
Upgrade your Yamaha outboard with confidence using this high-quality 90-428 replacement lower unit. Compatible with both 2-stroke and 4-stroke V6 Yamaha engines from 1990 to 2019, this counter-rotation gearcase is designed for direct-fit installation—no modifications required.
Built for long-lasting performance in freshwater or saltwater, it supports 200HP, 225HP, and some 250HP motors across multiple year ranges and models. Choose from 25″ or 30″ shaft lengths with gear ratios of 1.81:1 or 2.0:1. Backed by a solid 3-year warranty, this aftermarket lower unit offers excellent value for your boating investment.
| Specification | Details |
|---|---|
| Product Name | Yamaha V6 200–250HP Counter Rotation Lower Unit |
| Compatible Models | 2-Stroke & 4-Stroke V6 |
| Horsepower Range | 200HP / 225HP / Some 250HP |
| Years Supported | 1990 – 2019 |
| Rotation | Counter Rotation Only |
| Shaft Length | 25″ / 30″ |
| Gear Ratios | 1.81:1 (2-Stroke) / 2.0:1 (4-Stroke) |
| Condition | New – Aftermarket |
| Paint Finish | Black (Paintable to Match) |
| Warranty | 3 Years |
| Part Code / SKU | 90-428 |
| Installation | Direct Fit – No Modifications Required |
| Usage | Freshwater & Saltwater Compatible |
This counter-rotation gear case replaces most Yamaha 2 Stroke V6 3.1 and 3.2 Liter (225HP / 250HP) Engines.
This counter-rotation gear case replaces most Yamaha 2 Stroke V6 3.1 and 3.2 Liter (200HP/225HP/ and some 250HP) Engines. For Counter Rotation only, do not use for Standard Rotation.
This counter-rotation gear case replaces most Yamaha Four Stroke V6 200HP – 225HP Engines.
This counter-rotation gear case replaces most Yamaha Four Stroke V6 225HP Engines.
| Weight | 90 lbs |
|---|---|
| Dimensions | 23 × 13 × 31 in |
| Degree/Motor/Length |
3.1L&3.2L/Two Stroke V6/25" Shaft/1.8 Ratio/Left Hand Rotation ,3.1L&3.2L/Two Stroke V6/30" Shaft/1.8 Ratio/Left Hand Rotation ,6 Cylinder/Four Stroke V6/25" Shaft/2.0 Ratio/Left Hand Rotation ,6 Cylinder/Four Stroke V6/30" Shaft/2.0 Ratio/Left Hand Rotation |
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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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Pamela Carpenter –
The customer team helped me verify compatibility with my 2005 motor. The unit arrived undamaged, installed smoothly, and outperforms my old part. Silent shifts and no vibrations—extremely satisfied!
Scott Rodgers –
This unit survived a month-long expedition in Alaskan waters. No corrosion, no leaks, and shifts are as smooth as day one. OEM engineers should take notes!
Robert Ramsey –
No more jerky shifts. Smooth as silk now!
Carolyn Riggs –
Used for waterskiing and cruising—excellent performance. Unbeatable price!
Jonathan Warner –
The customer team answered my pre-purchase questions promptly. The unit itself is robust, shifts smoothly, and resists corrosion. A hassle-free upgrade!
Jason Sanders –
Whisper-quiet—can finally hear the waves again!
Robert Garcia –
Final gem—flawless close!
Robert Richards –
Replaced my lower unit in 50 minutes—no mechanic needed. The splines aligned flawlessly, and the anti-vibration design eliminates cockpit noise. Handles rough wakes like a champ. 10/10!
Teresa Jenkins –
The customer support team walked me through a minor alignment question via email. The unit itself is robust—no leaks, no noise, and perfect compatibility with my 150HP engine. A+ experience!
Lindsey Garza –
Crisp shifts—saved my boat!
Shawn Allen –
Leak-free—reliable upgrade!
Jesse Hubbard –
I’ve tested this in mudflats and open water—it hasn’t missed a beat. The stainless steel construction resists corrosion, and the shifts are crisp. A reliable workhorse!
Caitlyn Smith –
confidence-inspiring! Installation took 40 minutes, and performance is flawless. A smart choice for value-conscious boaters!
Cody Gonzalez –
Week-long testing—zero issues. Handles heavy loads easily.
Sheri Hunt –
Rust-proof bolts—matches OEM. Smart buy!
Elizabeth Barton –
The customer team sent a follow-up email to confirm satisfaction. The unit itself is leak-proof, shifts seamlessly, and handles heavy loads. A rare five-star experience!
Kathy Rogers –
The delivery was lightning-fast, arriving two days earlier than promised. Installation was straightforward thanks to the detailed manual, and the unit fits my 2018 motor perfectly. No issues after three weekend trips!
Kelly Leblanc –
Salt, sun, storms—endures!
Kelly Trevino –
This unit arrived with a pre-installed gasket, saving me time. After two months of heavy use, there’s no wear on the gears or seals. A stellar value!
Kevin Simon –
The anti-vibration design reduces cockpit noise significantly. Installed it in 45 minutes, and shifts are buttery-smooth. Premium feel without the premium price!
Anthony Diaz DDS –
The unit’s powder-coated finish resists chips and scratches. Installation took 35 minutes, and performance is flawless. Why spend more on overpriced OEM parts?
Lucas Conley –
Snug splines, silent operation. Half the cost, zero flaws—perfection!
Kevin Jones –
Excel in tournaments and leisure. Unbeatable value!
Krystal Hurley –
After struggling with a noisy OEM unit, this was a welcome upgrade. The operation is whisper-quiet, and the shifts are buttery-smooth. Installation took 35 minutes—highly recommend!
Jessica Lam –
I paired this with a hydrofoil, and the combo is unstoppable. The unit handles sudden throttle changes effortlessly, and the oil stays crystal clear. Worth every penny!