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Mercury Outboard Parts
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
Mercury outboard parts can vary by horsepower, engine family, model year, and serial number range. If you are unsure which component fits your engine, use the OEM parts lookup to locate the original Mercury part number from an engine diagram.
Once you have the OEM part number, search Pro Marine to find available genuine Mercury and aftermarket replacement options.
Use Our OEM Parts Lookup »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
How do I find the correct Mercury outboard part?
Use the engine horsepower, model, serial number, and year whenever available. Mercury frequently uses serial-number ranges to identify engine families, so the serial number is often the most reliable way to confirm fitment.
Can I search Mercury parts by OEM part number?
Yes. Enter the Mercury OEM part number into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.
Do Mercury outboard parts vary by serial number?
Yes. Many Mercury components change by serial-number range even within the same horsepower or model family. Always compare the serial range listed for the part with your engine before ordering.
Do you carry parts for Mercury Optimax and Verado engines?
Yes. Pro Marine carries parts for many Mercury Optimax, Verado, Pro XS, EFI, FourStroke, and SeaPro applications, including maintenance, fuel, electrical, cooling, internal engine, lower unit, steering, and rigging components.
Do you carry both OEM and aftermarket Mercury parts?
Yes. Pro Marine offers genuine Mercury parts along with aftermarket replacement parts for many common Mercury outboard maintenance, repair, and rebuild applications.
What Mercury outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump kits, impellers, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Mercury outboard parts often vary by serial-number range. Confirm your engine serial number and OEM part number whenever possible before ordering.
Hydraulic Steering Cylinder Bleed Kit
Pro Marine 350-BLEEDKIT Hydraulic Cylinder Bleed Kit
The Pro Marine 350-BLEEDKIT Hydraulic Cylinder Bleed Kit is designed to simplify hydraulic steering system bleeding and service procedures for marine hydraulic steering applications.
This bleed kit is compatible with many standard hydraulic steering systems, including Pro Marine, SeaStar®, Uflex®, and similar front-mount hydraulic steering setups.
What a Hydraulic Steering Bleed Kit Does
A hydraulic steering bleed kit helps remove trapped air from the steering system during installation, maintenance, or repair procedures.
Proper bleeding allows hydraulic fluid to fully circulate through the helm, hoses, and steering cylinder, helping restore smooth steering feel and consistent steering response.
Read our Hydraulic Steering Comparison & Pro Tips Guide
Best Applications
| Application | Recommended Use |
|---|---|
| Hydraulic Steering Installation | Bleeding air from newly installed steering systems |
| Hydraulic Steering Service | Routine steering maintenance and repairs |
| Steering Cylinder Replacement | Bleeding the system after cylinder installation |
| Repower Projects | Completing hydraulic steering upgrades |
| Marine Repair Shops | Professional hydraulic steering service work |
Complete or Service Your Steering System
Complete Steering Kit
Need a complete hydraulic steering package? The 350-HSTEER kit includes the steering cylinder, helm pump, hydraulic fluid, and fill hose assembly.
View 350-HSTEER Complete KitHydraulic Fluid
Use quality hydraulic steering fluid during steering filling and bleeding procedures.
View PRO-OIL15 Hydraulic FluidFill Hose Assembly
Fill hose assemblies simplify steering fluid filling and help maintain fluid supply during bleeding.
View 102P Fill Hose AssemblyHydraulic Steering Components
Shop compatible helm pumps, cylinders, hydraulic hoses, and steering service components.
Shop Hydraulic Steering ComponentsKey Features and Benefits
- Designed for hydraulic steering system bleeding
- Helps remove trapped air from steering cylinders and hoses
- Improves steering response and steering feel
- Useful during installation and maintenance procedures
- Compatible with many standard hydraulic steering systems
- Works with Pro Marine, SeaStar®, and Uflex® style setups
- Useful for marine technicians and DIY boat owners
- Helps simplify hydraulic steering service work
System Function and Connections
- System Type: Hydraulic outboard steering
- Component Type: Hydraulic steering bleed kit
- Function: Steering system bleeding and air removal
- Connection Type: Steering cylinder bleed fittings
- Typical Use: Hydraulic steering installation and maintenance
- Compatible Systems: Pro Marine, SeaStar®, Uflex®, and similar hydraulic steering systems
- Related Components: Helm pumps, steering cylinders, hydraulic hoses, fill hose assemblies, and steering fluid
FAQ
What does a hydraulic steering bleed kit do?
A bleed kit helps remove trapped air from the hydraulic steering system during installation or service procedures.
Why is bleeding hydraulic steering important?
Proper bleeding removes trapped air that can cause soft steering feel, inconsistent response, or steering noise.
What steering systems is this compatible with?
It is compatible with many standard hydraulic steering systems including Pro Marine, SeaStar®, Uflex®, and similar systems.
Can this be used for new steering installations?
Yes. Bleeding is required during most new hydraulic steering installations and cylinder replacements.
Is this useful for DIY steering service?
Yes. This bleed kit helps simplify the steering bleeding process for both professional technicians and DIY boat owners.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
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