Original price was: $971.25.$875.00Current price is: $875.00.
SE106 UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) – 90-104-01B. This outboard lower unit features a 1.81 ratio and short 8-1/8 input yoke, ideal for older inline 6 and 4 cylinder engines.
20 in stock
The SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) is a high-quality replacement part designed to provide superior performance and durability. This upper gear set is specifically engineered to replace the Mercruiser Alpha One, ensuring a seamless integration into your boat’s propulsion system. The SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) features a short yoke design, which provides enhanced clearance and reduced interference with other components.
By installing the SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One), you can expect improved power transmission, reduced vibration, and a quieter operation. The SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) is crafted from high-strength materials, ensuring a long-lasting and reliable performance. Moreover, this gear set is designed to withstand the harsh marine environment, providing you with peace of mind during your boating adventures.
The SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) offers several benefits that set it apart from other replacement parts. Firstly, its short yoke design provides improved clearance, reducing the risk of interference with other components. Additionally, the SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) is crafted from high-strength materials, ensuring a long-lasting and reliable performance. Furthermore, this gear set is designed to provide superior power transmission, resulting in a smoother and quieter operation.
The SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) is suitable for a variety of applications, including:
To ensure the optimal performance and longevity of the SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One), follow these maintenance tips:
In conclusion, the SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One) is an excellent choice for boat owners and enthusiasts seeking a high-quality replacement part that provides superior performance and durability. By choosing the SE106, UPPER 1.81 w/ SHORT YOKE (Replaces Mercruiser Alpha One), you can enjoy a smoother, quieter, and more reliable boating experience.
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Kelsey Henry –
I’ve tested this in heavy surf—no slippage or overheating. The stainless steel gears show no wear, and shifts are crisp. A rugged performer!
Jackie Hayes –
The installation video on their website was a lifesaver. The unit fits snugly, shifts smoothly, and shows no signs of fatigue. Perfect for non-mechanics like me!
Dennis Smith –
Lightning-fast delivery. Packed like it was fragile art!
Taylor Hunt Jr. –
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!
Gavin Salinas –
Wake bigger—handles it!
Steven Ryan –
I’ve tested this in mudflats and open ocean—it hasn’t flinched. The stainless steel resists dings, and the shifts are precise. A rugged, reliable performer!
Jordan Baker –
Delivered early AM. Installed before noon—works great!
Julia Rivera –
This unit eliminated the clunking noise from my old OEM part. The gears engage silently, and the oil stays pristine. A flawless upgrade for under $500!
Miguel Barajas –
The delivery was so fast I thought it was a mistake. Installed the unit in 40 minutes, and it’s handled everything from idling to WOT without issue. Zero complaints!
Christopher Harris –
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!
Joseph Davidson –
Precision engineering—perfection!
Sarah Cooper –
Pre-filled lube—saves hassle. Smoother shifts—why overpay?
Margaret Sandoval –
This unit’s housing is thicker than my old OEM part. Installed it in 40 minutes, and it’s handled hurricane swells without complaint. Durable and dirt-cheap!
Jason Rodriguez –
Splines fit snugly—no vibration. Runs silently and cool after 30 hours. Flawless half-price replacement!