New & Used Outboard Motors
Yamaha, Mercury and Suzuki outboards, from repowers to fully serviced pre-owned units, tested before they leave our shop.
Dania Beach, Florida — Worldwide shipping
More Than
40 Years of
Experience
Outboard motors and parts — new and used — expert repairs and honest advisory for buying and selling. Authorized and certified for Yamaha, Mercury and Suzuki.
40+
Years in the industry
3
Authorized brands
Worldwide
Shipping from the USA
Zero
Comebacks policy
What we do
Motors, parts, advisory and repairs
New & Used Parts
Propellers, pumps, impellers, controls, electrical and trim components — in stock or sourced fast from our supplier network.
Buy & Sell Advisory
Independent inspection and honest guidance before you buy or sell a boat or engine. We tell you what we would do with our own money.
Service & Repairs
Steering, pumps, electrical issues, trim tabs, diagnostics and full engine service — done right the first time.
Authorized & Certified
We are an authorized and certified dealer and service center for Yamaha, Mercury and Suzuki outboard motors. That means factory-trained technicians, genuine parts and manufacturer-backed service standards on every job we take on.
Yamaha
Yamaha Outboard Motors certified technicians.
Mercury
Authorized service and parts for the Mercury line.
Suzuki
Certified Suzuki outboard sales and repair.
Factory-trained technicians
Certified by Yamaha, Mercury and Suzuki to diagnose, service and repair your outboard the right way.
Genuine parts & warranty support
We use OEM parts and follow manufacturer procedures so your warranty stays protected.
Zero Comebacks standard
Every certified repair is inspected and tested before it leaves our shop — no comebacks, no surprises.
From our YouTube channel
See our work in motion
Visit our channelOutboard motor service walkthrough
New & used engines in our shop
Worldwide shipping & packing
Quick request
Find Your Motor
Find Your Part
Tell us the brand, model and what you are looking for. We check new and used inventory and come back with real availability, pricing and shipping options.
We ship worldwide
USA → Latin America → Europe → Asia → Worldwide
We crate and ship outboard motors and parts from Dania Beach, Florida to any port. These are some of the markets we serve every week.
- USA
- Mexico
- Dominican Republic
- Venezuela
- Colombia
- Ecuador
- Panama
- Costa Rica
- Brazil
- Argentina
- Spain
- Italy
- France
- Germany
- United Kingdom
- China
- Japan
- South Korea
- Worldwide
How it works
Buying from us is simple
01
Tell us what you need
Motor, part number, photo or serial number.
02
We confirm availability
New or used options depending on inventory.
03
Get your quote
Product + shipping options.
04
We ship it
Domestic or worldwide delivery.
US-4 Marine Supply Reviews
4.9Based on verified customer reviews on Google
C
Carlos M.
2 weeks agoLocal Guide
Bought a used Yamaha F250 from them. Fully serviced, tested and crated for shipping to Santo Domingo. Everything arrived exactly as promised.
J
James R.
a month ago
They found a hard-to-get water pump kit for my Mercury Verado in one day. Honest pricing and they actually answer the phone.
L
Luis P.
2 months agoLocal Guide
Great advisory before I bought my boat. They inspected the engines and told me what to negotiate. Saved me thousands.
A
Andrea G.
3 months ago
Repowered with twin Suzuki outboards. Clean install, no comebacks, and the team speaks Spanish which made everything easy.
R
Roberto D.
4 months ago
Shipped a Mercury 150 to Panama. They handled the crating, paperwork and freight. The motor arrived at the port on time and in perfect condition.
M
María S.
5 months agoLocal Guide
Took my boat in for a water pump and lower unit service. They diagnosed it fast, showed me the worn parts, and had it back in the water the same week.
F
Fernando C.
6 months ago
Ordered a full set of Suzuki parts for delivery to Colombia. Prices were fair and the shipping quote was clear from day one. Highly recommended.
E
Eduardo M.
7 months agoLocal Guide
They helped me sell my center console. Found a serious buyer, handled the engine inspection, and the deal closed without surprises. Trustworthy team.
Why US-4 Marine?
Our commitment is doing things right and seeing the results of a job well done. We are passionate about earning our customers' confidence and trust, and we keep close communication with every boat captain through the service or repair.
Our jobs are done right the first time — no reason to bring your boat back after a service or repair. That is our “Zero Comebacks” policy, and it is the reason our customers stay with us.
We only work in a cordial and friendly atmosphere. Our customers become our friends. We speak fluent Spanish.