Frequently Asked Questions

We are an authorized dealer for Tidewater, Jones Brothers, Highfield, Bluewater, and Load Rite/Venture trailers. We also carry a full line of Yamaha outboard motors and genuine Yamaha parts.

Yes — we always have a selection of quality pre-owned boats in stock. Every used boat goes through our service department before it hits the lot. Browse our current used inventory online or stop by to see what's available.

We work with several marine lenders to get you competitive rates. Use the payment calculator on any boat in our inventory to estimate monthly payments, or contact us to get pre-approved before you shop.

Yes. Tell us your boat's year, make, model, engine hours and condition, and we'll appraise it and apply the trade value directly to your next boat — potentially lowering your sales tax too. Start on our trade-in page.

Yes. We make a fair offer based on actual market data and close quickly, and we handle the paperwork — title transfer, lien payoff and trailer registration. We'll take boats in any condition. Get a cash offer.

Yes. We photograph your boat, write the listing and price it on current market data, then market it on our website, our showroom floor and major listing platforms. We manage sea trials, paperwork and title transfer. See our brokerage services.

Absolutely. Our service department works on all makes and models. We specialize in Yamaha outboard service but handle everything from winterization and spring commissioning to full engine repowers.

Yes. We offer full winterization packages for both inboard and outboard engines, including shrink-wrapping. Contact us in early fall to reserve your spot — it fills up fast.

Yes. A Yamaha repower brings better fuel economy, more power for less weight, quieter running and higher resale value, and every new Yamaha outboard comes with a factory warranty. Learn more about a Yamaha repower.

We carry a full selection of saltwater and freshwater fishing tackle — rods, reels, lures, line, terminal tackle, and more. Our staff are avid fishermen and can help you gear up for whatever you're chasing.

We're at 396 Washington St, Weymouth, MA 02188, where Monahan's Marine has been putting South Shore boaters on the water since 1961. Boats, engines, service and tackle are all under one roof. Contact us for directions and hours.