Marine Supplies & Boat Parts in Hyannis, MA

❄️ Winterization Supplies

Hyannis is the maritime hub of Cape Cod — the Capital of the Cape and the region's primary port, connecting the mainland to Nantucket Island and Martha's Vineyard by ferry year-round. Surrounded by Nantucket Sound to the south and Cape Cod Bay to the north, Hyannis sits at the crossroads of some of the most historically rich and actively fished waters on the East Coast. West Marine Hyannis is the full-service marine supply store for Cape Cod and the Islands, serving year-round residents, seasonal boaters, charter captains, and visiting cruisers who make Hyannis their home port.

We serve the boating communities of Barnstable, Centerville, Osterville, Cotuit, Yarmouth, Dennis, and across the Cape Cod region. Whether you're keeping a slip at Hyannis Marina, mooring in Lewis Bay, or launching from Sandy Neck, our staff — active boaters on Cape Cod's waters — has the gear, parts, and local knowledge you need. From USCG-required safety equipment to end-of-season winterization supplies, we're stocked for every condition Cape Cod's waters can throw at you.

Everything You Need on the Water — Boating Supplies & Gear

Cape Cod's boating calendar is packed from Memorial Day to Columbus Day. Anchor off Egg Island and watch the tide slowly reclaim the sandbar beneath your feet, take your boat to a Hyannis Harbor Hawks game at McKeon Field, or cruise Nantucket Sound to one of the Islands for the day. However you spend your time on the water, having the right gear aboard — and knowing your vessel is properly equipped — makes the difference between a great day and a difficult one.

Our store carries a comprehensive selection of USCG-approved life jackets and inflatable PFDs for every age and activity, throwable flotation devices, visual distress signals and flares, and marine fire extinguishers to keep your vessel compliant in Massachusetts waters. For anchoring in Nantucket Sound's tidal currents and Cape Cod Bay's variable conditions, we stock storm anchors and high-holding anchoring systems, heavy-duty dock lines and chafe gear, and fenders and dock bumpers for marina and mooring use.

Keep your vessel running reliably with outboard engine parts and accessories, marine electrical components and wiring, bilge pumps, through-hulls, and ventilation systems, and deep-cycle marine batteries and battery chargers. Our experienced staff can help diagnose issues and source the right parts to get you back on the water fast — critical during Cape Cod's short but busy summer season.

Sail Nantucket Sound & the Islands — Rigging, Hardware & Sailing Gear

Hyannis Port and Nantucket Sound have long drawn sailors — from the Kennedy family, whose compound graces the Hyannis Port shoreline, to the racing fleets that have competed on these waters for generations. The Sound's reliable southwest summer breezes, combined with the natural destinations of Martha's Vineyard and Nantucket just hours away by sail, make this one of New England's most rewarding cruising grounds. For more experienced sailors, the passages through Vineyard Sound, Muskeget Channel, and out to Nantucket present genuine offshore challenges and unforgettable destinations.

Our Hyannis store is fully stocked for Cape Cod sailors. Browse our selection of rigging hardware, wire, and high-performance line, blocks, winches, and deck hardware, and anchoring systems for extended stays at Vineyard Haven or Nantucket Town. Navigate the Sound's shoals and ferry traffic with confidence using chartplotters and GPS navigation systems, stay in contact offshore with VHF radios and SSB communication gear, and be prepared for any conditions with EPIRBs and Personal Locator Beacons. We also carry a full range of foul weather gear and performance sailing apparel for Cape Cod's notoriously variable conditions. Our sailing staff can help you plan passages to the Islands and advise on the gear your boat needs for Sound and offshore sailing.

Fish Cape Cod's Waters — Rods, Reels & Tackle

Cape Cod is one of the most storied fishing destinations in the country. Rocky shoreline access along the Sound and the Bay produces striped bass and bluefish for surf casters throughout the summer, while the tidal rips off Monomoy Point and around the Cape's elbow are legendary among inshore boat fishermen. Thrill-seeking anglers looking for big bluefin tuna and yellowfin head south to the Great South Channel and the underwater canyons off the Cape's outer edge — some of the most productive offshore grounds on the East Coast. Closer to Hyannis, Nantucket Sound's sandy bottom holds fluke and sea bass, and scup and tautog are fixtures on the Cape's nearshore reefs year-round.

Our fishing department stocks a complete selection of offshore and inshore rods and reels from Shimano, Penn, and other trusted brands, along with a full assortment of terminal tackle, rigging supplies, and lures chosen for Cape Cod's species and conditions. Mark productive structure with fishfinders, sonar, and GPS chartplotters, and stay safe offshore with fixed-mount VHF radios and handheld VHF radios as backup. Our fishing staff knows the local rips, tides, and seasonal migrations and can put you on the right gear for the species you're targeting.

Paddle Cape Cod's Marshes & Coastline — Kayaks, SUP & Gear

Cape Cod's paddling terrain is as varied as its coastline. The Bass River winds six miles through Yarmouth and Dennis before emptying into Nantucket Sound — calm, navigable flatwater with historic bridges and wildlife at every bend. Barnstable Harbor's salt marshes and oyster beds offer a quiet counterpoint to the open Sound, while the tidal creeks of Sandy Neck and the Great Marshes stretch for miles of protected paddling accessible only by kayak or canoe. For more experienced paddlers, the Sound's shoreline and offshore sandbars present an open-water challenge with stunning views of the Islands on clear days.

We carry a full selection of sit-on-top and touring kayaks suited for Cape Cod's mix of sheltered marshes and open coastal water, along with stand-up paddleboards for flatwater and surf. Complete your setup with paddles for kayaking and SUP and PFDs designed for paddlers. Our paddlesports staff can advise on route planning for the Bass River, Barnstable Harbor, and the Sound's coastline, and help you choose the right hull for where you'll be paddling.

Navigate Cape Cod Waters with Confidence — Marine Electronics & GPS

Nantucket Sound's shoaling waters, heavy summer ferry and commercial traffic, and Cape Cod's notorious afternoon sea breeze make reliable electronics essential for every vessel operating out of Hyannis. Our store carries a full range of chartplotters, GPS units, and radar systems from Garmin, Raymarine, and Simrad — with chart accuracy particularly critical for navigating the Sound's constantly shifting sandbars and the approaches to the Islands. Stay informed about vessel traffic with AIS transceivers and receivers, maintain communication with fixed-mount VHF radios and handheld VHF units, and add offshore safety with EPIRBs and Personal Locator Beacons. For fishing, our fishfinder and sonar selection covers shallow-water flats fishing through deep canyon applications.

Winterization & Boat Care for Cape Cod's Off-Season

Cape Cod's boating season is intense but short, and protecting your vessel through a New England winter requires a thorough, methodical approach. Our Hyannis store is fully stocked with engine fogging oil and corrosion inhibitors, non-toxic marine antifreeze for cooling systems and plumbing, fuel stabilizers for gasoline and ethanol-blend fuel, boat covers and shrink wrap supplies, and battery maintainers and trickle chargers for storage through the winter months. Our staff can walk you through a complete winterization checklist tailored to your engine type and vessel before the first hard freeze arrives on the Cape.

Year-round boat care matters too. We carry a full range of boat care, wax, and cleaning products formulated for saltwater environments, along with dock lines and mooring gear, dock hardware and cleats, and solar and LED dock lighting for Cape Cod's shoulder seasons. For docks that stay in the water through winter, we stock dock de-icers and bubbler systems to protect dock structures from ice damage during Cape Cod's cold months.

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