Boat Trailer Parts, Gear & Accessories

Boat trailers and marine gear take on water, weight, and weather every time you head out, so the right equipment makes a major difference in how smoothly your trips go. Whether you're launching, towing, or storing your boat, choose parts built for corrosion resistance and steady support in wet conditions. Matching your gear to your boat size and towing setup keeps everything secure and helps your trailer stay reliable season after season.

Shop Boat & Trailer Parts by Category

BOAT PARTS & ACCESSORIES

man unloading fishing rods from roof carrier.

BOAT PARTS & ACCESSORIES

FISHING ACCESSORIES

Top-Rated Boat Gear & Accessories

MARINE POWER

BOAT MOTOR ACCESSORIES

LED Combination Tail Light Kit for Trailers.

BOAT TRAILER LIGHTS

SpeedStrap Ratchet Tie-Down, Snap Hook & Soft Tie.

BOAT TIE DOWN STRAPS

BOAT WATER PUMPS

CE Smith Multi Sport Plus Boat and Kayak Trailer w/ Bunks.

KAYAK & CANOE TRAILERS

New Boat & Trailer Products

Connect-Ease Quik 1 12V Single Device Connection Kit.

CONNECT-EASE BATTERY CONNECTORS

Tie Down Roller Bunks for Boat Trailers.

TIE DOWN BOAT TRAILER PARTS

Xtreme Heaters Boat and RV Heater w/ Quick-Release Bracket.

XTREME HEATERS BOAT HEATERS

ATTWOOD BOAT PUMPS

Malone MicroSport LowBed Off-Road 2 Kayak Trailer Package.

MALONE KAYAK TRAILERS

Attwood SoftSide Oval Mooring Fender in Blue.

ATTWOOD MOORING FENDERS

Helpful Guides for Safer Boating

How Much Do a Boat and Trailer Weigh article.

Real Customers. Real Installs. Real Adventures.

Click to explore the products these customers have put to the test.

Dutton-Lainson Boat Trailer Deluxe Roller Bunk.

CE Smith Carpeted Bunk Boards for Boat Trailers.

Smart Solutions for Safer, Smoother Days on the Water

For more than 75 years, we’ve helped boat owners keep their trailers and gear ready for the water. We test the marine parts we carry so you know they can handle salt, spray, and heavy use, and we back every recommendation with real installation photos and practical guidance. From lights and rollers to batteries and storage gear, you’ll find dependable equipment designed for wet conditions and long seasons. Count on etrailer to keep your boat and trailer prepared for every launch, tow, and trip back to shore.

How can I protect my boat trailer from rust?

Saltwater and moisture can quickly cause rust and corrosion on a boat trailer. To help prevent this, rinse the trailer with fresh water after each use, especially after saltwater exposure. Applying a protective spray or choosing galvanized or aluminum parts can extend the life of the trailer. Marine-grade lubricants on hinges and moving parts also help reduce wear over time. For the best long-term protection, using corrosion-resistant hardware and coatings is recommended.

What’s the difference between bunk and roller-style boat trailer guides?

Bunk-style guides provide solid support and are ideal for heavier boats that require extra stability. Roller guides reduce friction, making it easier to launch and retrieve boats, especially in shallow water. Choosing between the two depends on the boat’s weight, the depth of the launch area, and personal preference. For those looking for a balance of support and ease of use, some trailers can be equipped with a combination of both.

For a detailed comparison of both styles, check out our full guide: Boat Trailer Showdown: Bunks vs. Rollers.

How do I find the right trailer tire size?

The correct trailer tire size can be found on the sidewall of the existing tires, marked with numbers like ST205/75R15. These indicate the tire width, aspect ratio, and wheel diameter. It’s also important to check the tire’s weight capacity to ensure it matches or exceeds the trailer’s load rating. For boat trailers, using tires with a strong sidewall and a high load rating helps with durability and stability, especially when towing long distances.

What’s the safest way to tie down my boat?

Securing a boat properly prevents movement during transport and reduces stress on the hull. Using ratchet straps or transom tie-downs at the stern and bow keeps the boat in place. The straps should be tight enough to prevent shifting but not overly compressed to avoid damage. Additional bow and gunwale straps can provide extra security. Marine-grade tie-downs with corrosion-resistant hardware are ideal for long-term reliability.

How do I choose the right LED trailer lights for my boat trailer?

Marine trailer lights should be fully submersible and designed to withstand water exposure. LED lights are a good choice because they are brighter, last longer, and use less power than incandescent bulbs. When selecting lights, it’s important to check for waterproof seals, DOT compliance, and compatibility with the trailer’s wiring. Corrosion-resistant connectors and heat-sealed wiring improve longevity, especially for boat trailers frequently exposed to water.