Shop OEM and aftermarket Mercury outboard parts for maintenance, repair, troubleshooting, and complete engine rebuild projects. Browse Mercury marine parts by system, including cooling, fuel delivery, electrical and ignition, internal engine components, lower unit parts, steering, trim, and routine service items.

Pro Marine USA carries Mercury outboard engine parts for a wide range of 2-stroke, FourStroke, EFI, Optimax, Pro XS, SeaPro, and Verado applications. Use your engine horsepower, model, serial number, or OEM part number whenever possible to confirm fitment before ordering.

Shop Mercury Outboard Parts by System

• Complete Powerheads
• Control Cables & Boxes
• Cooling System
• Cowlings & Components
• Electrical System
• Engine Oil
• Engine Rebuild Kits
• Fuel & Carburetion System
• Intake System
• Internal Engine Components
• Lower Unit Components
• Oiling System
• Paints
• Service & Oil Change Kits
• Service Manuals
• Steering Systems
• Throttle Components
• Transom & Midsection
• Trim System
• Wizard Performance Parts

Find the Correct Mercury Outboard Part

Common Mercury Outboard Engine Families

Pro Marine supports many Mercury outboard applications across a wide horsepower range. Always confirm the engine serial number and model information before ordering parts.

• Portable and Midrange: Mercury 2.5HP through 60HP 2-stroke and FourStroke applications
• FourStroke and EFI: common 75HP through 300HP Mercury EFI and FourStroke platforms
• Pro XS: performance-oriented Mercury Pro XS outboards across multiple engine families
• Optimax: direct-injected 2-stroke Mercury Optimax engines, commonly 75HP through 250HP
• Verado: supercharged and naturally aspirated Mercury Verado applications from 135HP through current high-horsepower platforms
• SeaPro: commercial-duty Mercury SeaPro outboards used in professional and high-hour applications

Common Mercury Outboard Repair Areas

• Overheating: inspect the water pump, impeller, thermostat, poppet valve, cooling passages, and related cooling components.
• Hard starting or rough running: inspect fuel pumps, filters, injectors or carburetors, spark plugs, coils, sensors, and intake components.
• No spark or intermittent ignition: check ignition coils, stators, switch boxes, trigger assemblies, sensors, grounds, and wiring.
• Low compression or power loss: inspect pistons, rings, cylinders, bearings, gaskets, reeds, and internal engine components.
• Lower unit noise or water intrusion: inspect seals, bearings, gears, shafts, bearing carriers, and gear lube condition.
• Trim or steering problems: inspect trim motors, pumps, hydraulic components, steering cylinders, hoses, and related rigging parts.

Why Buy Mercury Outboard Parts from Pro Marine USA?

• OEM Mercury and aftermarket replacement options for many common applications.
• Parts for maintenance, repair, engine rebuilding, lower units, electrical systems, fuel systems, steering, trim, and rigging.
• OEM diagram and part-number lookup tools to help identify the correct part before ordering.
• Dealer pricing available for qualified marine repair businesses and dealers.
• Large inventory of Mercury service parts and hard-to-find marine engine components.
• Fast weekday shipping on qualifying in-stock orders.

Frequently Asked Questions

Fitment Tip: Mercury outboard parts often vary by serial-number range. Confirm your engine serial number and OEM part number whenever possible before ordering.