Description
Product Overview
The LucaSng engine mount is crafted from high‑grade brass, providing excellent resistance to marine corrosion and a sturdy connection for 2‑stroke outboard engines. Sized at 0.57″ D x 1.26″ W x 0.57″ H, it fits Mercury Mariner models from 4 to 10 HP, replacing part numbers 47‑89981, 47‑65957, 47‑39074, 18‑3039, 500314, and 12270. Its lightweight design (0.458 oz) ensures minimal impact on overall engine balance while delivering up to 9.8 horsepower.
Usage
Designed for recreational boating, this mount excels in freshwater lakes, coastal bays, and offshore excursions where reliability is critical. It is ideal for anglers, weekend sailors, and marine service technicians who need a dependable replacement that maintains engine alignment and reduces vibration. 
Why Choose Us
LucaSng combines precision engineering with marine‑grade materials, guaranteeing a fit that meets or exceeds OEM specifications. Each unit undergoes strict quality control, and the brand’s reputation for durability is reflected in a 4.5‑star rating from over 90 verified buyers. Our customer support offers detailed installation guidance, ensuring a smooth upgrade experience.
Key Features
- Premium brass construction for superior corrosion resistance
- Exact fit for Mercury Mariner 4‑10 HP outboards
- Replaces six OEM part numbers, simplifying inventory
- Compact dimensions reduce weight and maintain engine balance
- Backed by a 4.5‑star rating and extensive user reviews
FAQ
Does this mount fit 5 HP Mercury Mariner engines?
No, the 5 HP model is not compatible with this mount. It is designed for 4, 4.5, 7.5, 9.8, and 10 HP versions.
What tools are needed for installation?
Standard marine tools such as a socket set, torque wrench, and screwdrivers are sufficient. Detailed instructions are included in the package.
Is the brass finish coated?
The brass is marine‑treated to enhance corrosion resistance, but no additional coating is applied.
Can this mount be used on non‑Mercury outboards?
It is specifically engineered for Mercury Mariner models; using it on other brands may result in improper fit and performance issues.
What is the warranty period?
LucaSng offers a one‑year limited warranty covering manufacturing defects.




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