Best Marine Engine Accessories

1. ISURE MARINE Universal Rectangular Outboard Motor Water Flusher Boat Ear Muff Engine Flusher for Marine Boat

Keep your boat engine clean with the ISURE MARINE Universal Rectangular Outboard Motor Water Flusher. It fits most outboard motors and is easy to use. The rectangular cap measures 4.85″ x 3″, making it a perfect fit for many models.

This motor flusher helps remove contaminants from your engine’s cooling system. It allows for idle-speed adjustments and is compatible with garden hoses. The high-quality bracket ensures durability and long-lasting use.

Install the flusher in seconds and keep your engine running smoothly. It works with Johnson, Mercury, Yamaha, and more, making it a versatile tool for boat maintenance.

2. MERCURY Marine SmartCraft Connect Mobile Connected Boat Engine System for Single Outboard Engines, Under-Cowl Mount Marine App

The MERCURY Marine SmartCraft Connect system brings your boat’s engine to your fingertips. It works with single outboard engines and mounts under the cowl. Just pair it with the Mercury Marine app on your mobile device.

It streams live engine data, tracks fuel, and shows digital gauges. You can also track maintenance and share data with your dealer. It’s plug-and-play for easy setup.

This system works with Mercury and MerCruiser engines from 2004 and newer, 40hp and above. It also supports Avator electric outboards. No NEMA connection is needed.

3. ISURE MARINE Universal Rectangular Dual Water Feed Outboard Motor Water Flusher Boat Ear Muff Engine Flusher for Marine Boat

Keep your boat engine clean with the ISURE MARINE Universal Rectangular Dual Water Feed Outboard Motor Water Flusher. It fits most brands and installs in seconds. Use it after every trip to flush out contaminants and protect your motor.

This flusher works with garden hoses and lets you adjust idle speed easily. Its high-quality bracket stays strong and won’t deform over time.

4. GZZTORES Boat Kill Switch Lanyard Suit for All Yamaha Jet Ski Waverunner, Marine Outboard Motor Engine Cut off Stop Tether Wrist Strap, EW2-68348-00-00 Replacement (Blue With US Flag)

The GZZTORES Boat Kill Switch Lanyard is a must-have for Yamaha Jet Ski owners. It fits all Yamaha models and replaces EW2-68348-00-00 and 6K8-82556-00-00. This lanyard ensures safety and peace of mind on the water.

It’s durable, soft, and waterproof, made with nylon fiber, PU cord, and a plastic buckle. Even if it falls in the water, it floats and can be reused.

Choose from seven colors, including blue with a US flag. This lanyard is easy to use and adjustable, perfect for motorboat safety.

5. GOWENIC Outboard Tilt Rod 688‑43160‑01 Stainless Steel Boat Motor Tilt Rod Assy for 2 Stroke Outboard Engine, Marine Engine Accessories

The GOWENIC Outboard Tilt Rod is built tough. Made from heavy-duty stainless steel, it resists rust and lasts long. It’s a perfect fit for 2-stroke outboard motors.

This tilt rod works smoothly and reliably. It makes raising and lowering your motor easy and safe. Perfect for tight spaces or shallow waters.

Installation is simple and quick. It’s a smart upgrade for your boat. Trust it for dependable performance on the water.

6. 4PCS Outboard Quick Connect Flush Adapter Kit for Sea Doo Jet Ski Accessories,Boat Motor Water Hose Adapter Flush Kit for Seadoo PWC & Kawasaki 4 Stroke Watercraft Marine Engines Replacment Parts

The 4PCS Outboard Quick Connect Flush Adapter Kit is a must-have for Sea-Doo and Kawasaki jet ski owners. It works with 1997–2011 Sea-Doo PWCs and Kawasaki four-stroke models, making engine care easy. No tools needed—just connect and flush.

This kit saves time with its quick-connect adapter and shut-off valve. It removes salt, sand, and debris, keeping your engine clean and long-lasting. Perfect for routine maintenance and harsh marine conditions.

Durable materials resist corrosion and wear. Anti-backflow design prevents leaks. Simple 3-step operation for all users.

7. STAR BRITE Salt Off Kit Applicator & 32 OZ Concentrate for Marine Engine Flush & Salt Removal on Boats, Trailers, Fishing Gear, Dive Equipment, and More

STAR BRITE Salt Off Kit keeps your boats, trailers, and gear salt-free. It works on all surfaces, from fiberglass to rubber. The complete kit includes an easy-to-use applicator.

Use it as a marine engine flush to boost performance and extend engine life. It’s also great for cars and trucks to prevent road salt damage.

Available in ready-to-use and concentrated forms. STAR BRITE is a trusted brand, proudly made in the USA since 1973.

8. TXRXIZ Universal Boat Safety Lanyard Kill Switch with 7 Keys, Compatible with Mercury Yamaha Honda Tohatsu Johnson Evinrude Suzuki Jet Ski Outboard Marine Engine Cutoff Switch Cord Tether

The TXRXIZ Universal Boat Safety Lanyard is a must-have for any boat or jet ski owner. It works with Mercury, Yamaha, Honda, and more, ensuring wide compatibility. This lanyard keeps you safe on the water.

It’s made of durable PU rope and a strong ABS clip, so it lasts long. The elastic cord adds extra flexibility for easy use. Its 7 keys fit most kill switches, making it versatile.

When the lanyard is pulled, the engine shuts off, stopping the boat quickly. This prevents accidents and keeps you protected. Plus, it comes with great after-sales service for peace of mind.

9. Boat Marine Outboard Motor Cover for Mercury Yamaha Honda 30 40 50 60 HP Heavy Duty Hood Engines Full Cowling Protector Oxford Fabric with PVC Coating

Protect your outboard motor with this heavy-duty cover. Made from Oxford fabric with PVC coating, it’s tear-resistant and durable. Shields your engine from wind, rain, snow, and scratches.

Fits 30-60HP engines from brands like Mercury, Yamaha, and Honda. Measures 71.87″ x 56.7″ for a snug fit. Always measure your engine before buying for the best match.

Includes a drawstring bottom for extra security. Prevents the cover from blowing away in strong winds. Wait 10-15 minutes for the engine to cool before use.

10. Magicalmai Inductive Hour Meter for Gas Engine Generator Lawn Mower Pressure Washer Marine ATV Boat Outboard Motor Dirt Bike Motorcycle Waterproof Hr Meters – Black

The Magicalmai Inductive Hour Meter is a must-have tool for tracking the service life of your gas engines and generators. It works with marine, ATV, motorcycle, and more, helping you plan maintenance schedules like oil changes and clutch service.

It’s waterproof, shockproof, and durable, made with ABS material and epoxy casing. No battery is needed, and it records up to 9,999.9 hours with automatic roll over.

Installation is quick and easy. Just connect it to the spark plug and fix it with screws or zip ties. The total hours cannot be reset, ensuring accurate tracking for long-term use.