My Cart

Mercury Aftermarket Lower Units

Mercury Aftermarket Lower Units

Mercury 3 & 4 Cylinder OB Bigfoot$ 1145 - $200 rebate for return of good core = $ 945More Info
Mercury 2.0, 2.4 &2.5 Liter$ 1,145 - $200 rebate for return of good core = $ 945More Info
Mercury 3.0 Liter$ 1,145 - $200 rebate for return of good core = $ 945More Info
Mercury 3.0 Liter, Counter Rotation$ 1,345 - $200 rebate for return of good core = $ 1,145More Info

Our key features


Most orders received by 1pm cst ship today! Use coupon code DISCOUNTSHIPPIN.


Buy the best, buy parts that last.  Stay out on the water, not in the shop.


Shop online for best savings. Over 2 Million Parts ready to ship today!

Why Choose Mercury Aftermarket Lower Units?

Mercury aftermarket lower units offer affordability for boaters seeking to replace their gearcases without breaking the bank. Designed to meet the specifications of original Mercury units, these aftermarket solutions provide cost-effective option for your outboard.

Why Choose Mercury Aftermarket Lower Units?

Cost-Effective Solution: Opting for an aftermarket lower unit allows boaters to enjoy significant savings compared to OEM units. This makes Mercury aftermarket lower units an ideal choice for budget-conscious boaters.

Broad Compatibility: Whether you’re running an older model or a more recent Mercury outboard, the extensive selection of aftermarket lower units ensures you’ll find a compatible replacement. This wide range of options provides a tailored solution that meets your specific needs and preferences.

Warranty Assurance: To back up the commitment to quality, these aftermarket lower units come with a comprehensive warranty supported by the aftermarket manufacturer. This provides peace of mind and assures you of confidence in the product.

Key Features and Advantages:

Direct Replacement: Designed for easy installation, Mercury aftermarket lower units are crafted to fit seamlessly with your existing Mercury engine, ensuring a straightforward replacement process and minimal downtime.

Wide Selection: From classic models to the latest Mercury outboards, the selection of aftermarket lower units covers a broad spectrum, ensuring every boater can find the perfect match for their engine.

Expert Support: The US Boatworks team of knowledgeable professionals is here to assist you in selecting the right Mercury lower unit to ensure optimal performance and longevity.

Upgrade your boating experience today with a replacement lower unit today. Discover the affordability way to replace the lower unit for your boat.

Contact us to learn more and find the right lower unit for your boat!

Most Asked Questions

How do Mercury aftermarket lower units compare to OEM parts in terms of quality?

 Mercury aftermarket lower units are made overseas with non-OEM parts. This option may be preferred for the boater that is looking to fix then sell the boat. If you can afford the more reliable OEM lower unit or the remanufactured lower unit  you will experience much better quality.

Opting for Mercury aftermarket lower units allows boaters to achieve significant savings compared to purchasing a OEM or remanufactured lower unit.  This affordability makes them an ideal choice for boaters  on a budget. Often times boaters who are not covered by insurance for the damage may select the aftermarket lower unit.

Our extensive selection of Mercury aftermarket lower units ensures broad compatibility, covering a wide range of Mercury engine models, from older versions to the latest releases. This comprehensive range offers tailored solutions to meet the specific needs and preferences of various boaters.

Mercury aftermarket lower units are designed for direct replacement and easy installation, ensuring a seamless fit with existing Mercury engines. This hassle-free installation process allows for quick replacements and minimal downtime, getting you back on the water faster and with less hassle.

Customers can contact US Boatworks via call, text, or email to get expert assistance and ensure a great boating season.
Please have your serial # available when contacting us.