MERCURY MARINE Engine Parts

Mercury Marine Engine Parts & Outboard Replacement Parts

Maintain, repair, and service your Mercury-powered boat with Mercury Marine engine parts from West Marine. Shop replacement and maintenance parts for compatible Mercury outboard engines, including filters, spark plugs, water pump components, impellers, thermostats, anodes, fuel system parts, gaskets, seals, propeller hardware, electrical components, and other Mercury engine parts. Whether you're completing routine maintenance or replacing a worn component, find parts for Mercury FourStroke, Verado, Pro XS, and other Mercury marine engines.

Shop Mercury Outboard Engine Parts

Mercury Outboard Parts

Mercury outboard parts support the engine systems that keep your boat running, including fuel delivery, ignition, cooling, lubrication, electrical, steering, trim and tilt, and exhaust systems. Because part compatibility can vary by engine family and production range, use your Mercury engine model and serial number when selecting replacement parts.

Mercury FourStroke Parts

Shop Mercury FourStroke parts for routine service, maintenance, and compatible repairs. Find oil and fuel filters, spark plugs, thermostats, water pump parts, anodes, seals, gaskets, electrical components, and other replacement parts for select Mercury FourStroke outboards.

Mercury Verado Parts

Maintain compatible Mercury Verado outboard engines with replacement parts designed for their specific engine systems. When shopping for Verado parts, verify your engine horsepower, model, generation, and serial number to identify compatible filters, ignition components, cooling-system parts, electrical parts, and other engine components.

Mercury Pro XS Parts

Find Mercury Pro XS parts for compatible high-performance outboards used on bass boats, fishing boats, center consoles, and other vessels. Keep your engine maintained with compatible filters, spark plugs, water pump components, anodes, fuel-system parts, electrical components, and other replacement parts.

Mercury Engine Maintenance Parts

Mercury Oil Filters

Mercury oil filters help remove contaminants from the engine oil circulating through compatible four-stroke outboards. Oil filters should be replaced according to the maintenance schedule for your specific engine. Use your engine model and serial number to find the correct Mercury or Quicksilver replacement filter.

Mercury Fuel Filters

Protect your engine's fuel system with compatible Mercury fuel filters. Depending on the engine and boat, the fuel system may include engine-mounted filters, inline filters, and water-separating fuel filters designed to help prevent contaminants and water from reaching sensitive engine components.

Mercury Spark Plugs

Proper ignition begins with the correct spark plugs for your Mercury outboard. Spark plug type and specifications can vary between Mercury engine families, horsepower ratings, and production years. Verify the required plug and gap specification for your particular engine before replacement.

Mercury Maintenance Kits

Simplify scheduled service with a compatible Mercury outboard maintenance kit. Depending on the engine and kit, maintenance kits can include filters, spark plugs, seals, thermostats, anodes, water pump components, and other commonly replaced service parts.

Mercury Water Pump & Cooling System Parts

Mercury Water Pump Impellers

The Mercury outboard water pump impeller helps circulate cooling water through the engine. Impellers can wear with age and use, making inspection and replacement an important part of outboard maintenance. Shop compatible Mercury impellers, water pump kits, housings, gaskets, and related components.

Mercury Water Pump Kits

A Mercury water pump kit can provide multiple components needed to service a compatible outboard cooling system. Kits may include an impeller, gaskets, seals, wear plates, housings, or other components depending on the engine and kit selected.

Mercury Thermostats

Mercury thermostats help regulate operating temperature in compatible outboard engines. A thermostat that is worn, damaged, or affected by corrosion and deposits can interfere with proper cooling-system operation. Select replacement thermostats based on your specific Mercury engine.

Mercury Fuel System Parts

Mercury Fuel Pumps & Components

Maintain reliable fuel delivery with compatible Mercury fuel system parts. Depending on the engine, replacement components can include fuel pumps, filters, hoses, fittings, connectors, seals, and other parts used to move clean fuel from the tank to the engine.

Mercury Fuel Lines & Connectors

Inspect Mercury fuel lines, fittings, primer bulbs, and connectors regularly for deterioration, leaks, cracking, or other damage. Choose replacement components that are compatible with your engine, fuel system, and applicable marine fuel requirements.

Mercury Water-Separating Fuel Filters

Water-separating fuel filters help protect compatible Mercury engines by filtering contaminants and separating water from the fuel supply. They can be particularly valuable in marine environments where moisture and condensation can enter fuel systems.

Mercury Electrical & Ignition Parts

Mercury Ignition Parts

Shop compatible Mercury ignition parts for engine starting and operation. Depending on the outboard, ignition-system components can include spark plugs, coils, switches, sensors, wiring, and other electrical parts. Proper diagnosis is important before replacing ignition components.

Mercury Sensors & Switches

Mercury sensors and switches support engine monitoring, controls, alarms, and other functions. Because modern Mercury outboards can incorporate sophisticated electronic engine management systems, replacement sensors should be matched carefully to the engine model and serial number.

Mercury Relays & Solenoids

Find compatible Mercury relays and solenoids used in starting, power trim and tilt, and other electrical systems. Electrical troubleshooting should identify the source of a problem before parts are replaced.

Mercury Trim & Tilt Parts

Maintain convenient engine positioning with compatible Mercury power trim and tilt parts. Depending on your outboard, available replacement components can include trim switches, relays, solenoids, seals, hydraulic components, and related hardware.

Mercury Trim Relays & Switches

Mercury trim relays and switches are part of the electrical system controlling compatible power trim and tilt equipment. If a trim system stops operating correctly, inspect and diagnose the system before selecting replacement components.

Mercury Anodes & Corrosion Protection

Mercury Outboard Anodes

Mercury sacrificial anodes help protect compatible underwater engine components from galvanic corrosion. Inspect anodes regularly and replace them when sufficiently deteriorated. The appropriate anode material can depend on whether the boat operates in saltwater, brackish water, or freshwater.

Mercury Trim Tab Anodes

Some Mercury gearcases use a trim tab anode or other strategically positioned sacrificial anodes. Always replace anodes with components appropriate for your specific engine and boating environment.

Mercury Propeller Parts & Hardware

Mercury Propeller Hubs

Connect compatible propellers to your engine with the correct Mercury propeller hub. Mercury hub systems are designed around specific engine, gearcase, and propeller combinations, so verify compatibility before selecting a hub kit.

Mercury Flo-Torq Hub Kits

Mercury Flo-Torq propeller hub kits provide replaceable hub components for compatible Mercury propellers, engines, and gearcases. Select the correct Flo-Torq system based on your outboard and propeller specifications.

Mercury Propeller Nuts, Washers & Hardware

Shop Mercury propeller hardware including compatible nuts, washers, spacers, thrust washers, and other components used to properly install a propeller. Follow the manufacturer's installation and torque specifications when servicing propeller hardware.

Mercury Gaskets, Seals & Engine Hardware

Prevent leaks and complete engine repairs with compatible Mercury gaskets, O-rings, seals, drain screw gaskets, and engine hardware. Small sealing components are often replaced during routine maintenance or whenever related components are removed for service.

Mercury Lower Unit Seals & Gaskets

Proper seals help keep lubricant inside the gearcase and water outside. Inspect Mercury lower unit seals and drain plug gaskets during service and replace appropriate sealing components according to manufacturer recommendations.

How to Find the Right Mercury Marine Engine Parts

Find Your Mercury Engine Serial Number

The most important step when shopping for Mercury outboard replacement parts is identifying your engine correctly. Locate the Mercury engine serial number and use it along with the engine model and horsepower to determine which parts are compatible.

Don't Shop by Horsepower Alone

Two Mercury outboards with the same horsepower can use different filters, spark plugs, water pumps, thermostats, electrical components, and other parts. Engine family, model year, production range, and serial number can all affect compatibility.

Check the Mercury Part Number

If you're replacing an existing component, identify the Mercury Marine part number whenever possible. Comparing part numbers and superseded part information can help identify the appropriate replacement for your engine.

Mercury vs. Quicksilver Parts

Mercury Marine and Quicksilver offer maintenance and replacement products for marine engines. Depending on the component and application, boaters may find Mercury- or Quicksilver-branded parts designed for compatible Mercury engines. Always verify the individual product's fitment information before installation.

Frequently Asked Questions About Mercury Marine Engine Parts

Where can I buy Mercury outboard parts?

West Marine carries Mercury Marine engine parts and outboard maintenance parts for a variety of compatible Mercury engines. Shop online or check available products for filters, spark plugs, water pump components, fuel-system parts, anodes, propeller hardware, electrical parts, and other engine components.

How do I find the right parts for my Mercury outboard?

Start with your Mercury outboard's serial number, engine model, and horsepower. Use this information along with the existing Mercury part number, when available, to verify that a replacement component is compatible with your engine.

Where do I find the serial number on a Mercury outboard?

The serial number is typically located on an identification label or plate on the engine or mounting assembly, although the exact location varies by model. Consult Mercury documentation for the location on your specific outboard.

What parts are included in a Mercury outboard tune-up?

The parts required depend on the engine and maintenance interval. Service can include oil and fuel filters, spark plugs, gearcase seals, water pump components, thermostats, anodes, and other items identified in the engine's maintenance schedule.

How often should I replace a Mercury water pump impeller?

Replacement intervals vary by engine, operating hours, water conditions, and Mercury's maintenance recommendations. Inspect and service the water pump according to the schedule for your specific outboard, and investigate reduced cooling-water flow or overheating promptly.

How do I know which Mercury oil filter I need?

Use your engine model and serial number to identify the appropriate Mercury or Quicksilver oil filter. Do not select an oil filter based only on horsepower because filter requirements can vary between engine families and production years.

How do I know which spark plugs fit my Mercury outboard?

Check the spark plug specifications for your exact Mercury engine model and serial number. The required spark plug and gap can vary significantly between engines, even when horsepower ratings are similar.

What is a Mercury Flo-Torq hub kit?

A Mercury Flo-Torq hub kit is part of the connection between a compatible propeller and propeller shaft. Different Flo-Torq kits are designed for different engine, gearcase, and propeller combinations, so verify compatibility before installation.

How often should Mercury outboard anodes be replaced?

Inspect sacrificial anodes regularly and replace them based on deterioration and manufacturer recommendations. Anode wear can vary significantly depending on water type, electrical conditions, vessel use, and the amount of time the engine remains in the water.

Can I replace Mercury outboard parts myself?

Many experienced boat owners perform routine maintenance such as replacing filters, spark plugs, anodes, and water pump components. More complex engine, fuel, electrical, or internal repairs may require specialized tools and expertise. Follow Mercury service procedures and use a qualified marine technician when appropriate.

Are Mercury and Quicksilver parts the same?

Mercury Marine and Quicksilver are closely related product brands, and Quicksilver offers many maintenance and replacement products designed for compatible Mercury engines. Compatibility varies by product, so always check the part number and engine fitment rather than relying on the brand name alone.

Shop Mercury Marine Engine Parts at West Marine

Shop Mercury Marine engine parts at West Marine for maintenance, repair, and replacement projects on compatible Mercury outboards. Find Mercury FourStroke parts, Verado parts, Pro XS parts, oil filters, fuel filters, spark plugs, water pump impellers, water pump kits, thermostats, anodes, fuel-system components, ignition parts, electrical parts, trim and tilt components, Flo-Torq hub kits, propeller hardware, gaskets, seals, and more. Use your Mercury engine model and serial number to find the right parts and keep your boat ready for your next day of boating or fishing.