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Outboard Motor Parts | OEM & Aftermarket
Shop OEM and aftermarket outboard motor parts for Mercury, Yamaha, Suzuki, Honda, Johnson / Evinrude / E-TEC, Tohatsu / Nissan, and Chrysler / Force engines. Pro Marine USA carries parts for routine maintenance, troubleshooting, repair, and complete marine engine rebuilds.
Browse by outboard manufacturer or engine system, or use our OEM parts lookup to identify the correct part number before ordering. Find cooling, fuel, ignition, electrical, internal engine, lower unit, steering, trim, service kit, gasket, seal, and rebuild parts in one place.
Shop Outboard Parts by Manufacturer
Chrysler / Force Outboard Parts for Chrysler and Force outboard repair 
Honda Outboard Honda cooling, fuel, electrical, and engine parts 
Johnson / Evinrude / E-TEC Outboard Johnson, Evinrude, E-TEC, and OMC replacement parts 
Mercury Outboard Mercury and Mariner maintenance, repair, and rebuild parts 
Suzuki Outboard Suzuki service, lower unit, fuel, and engine parts 
Tohatsu / Nissan Outboard Tohatsu and Nissan outboard replacement parts 
Yamaha Outboard Yamaha maintenance, repair, lower unit, and rebuild parts Find the Correct Outboard Part
Not sure which part fits your engine? Start with the engine manufacturer, horsepower, model number, serial number, and year whenever available.
Our OEM parts lookup lets you view factory parts diagrams and identify the original part number for many popular outboard engines. Once you have the OEM number, search Pro Marine to find available OEM and aftermarket replacement options.
Use Our OEM Parts Lookup »Shop Outboard Parts by Engine System
Outboard engines use several interconnected systems. Select your manufacturer above to browse the exact categories available for your engine, including the following common repair and maintenance areas.
Common Outboard Problems and Where to Start
- Engine overheating: inspect the water pump, impeller, thermostat, pressure-control components, cooling passages, and engine anodes.
- Hard starting or rough idle: check fuel delivery, carburetor or injector operation, spark plugs, ignition components, filters, and intake sealing.
- Weak spark or no spark: test ignition coils, stators, switch boxes or ignition modules, sensors, wiring, grounds, and related electrical components.
- Low compression or poor power: inspect pistons, rings, cylinder condition, head and powerhead gaskets, bearings, and other internal engine components.
- Milky gear lube: inspect prop shaft, driveshaft, shift shaft, bearing carrier, and other lower unit seals for water intrusion.
- Lower unit or gearcase noise: inspect bearings, gears, clutch components, shafts, and gear lube condition before continued operation.
- Trim or steering problems: inspect hydraulic fluid level, seals, hoses, trim motors, pumps, steering cylinders, and mechanical connections.
Why Buy Outboard Parts from Pro Marine USA?
- OEM and aftermarket replacement options for major outboard engine brands.
- Marine engine parts for routine maintenance, professional repair, and complete rebuild projects.
- OEM diagram and part-number lookup tools to help identify the correct component before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large selection of service kits, engine parts, lower unit components, fuel system parts, electrical parts, steering, and rigging products.
- Same-day weekday shipping available on qualifying in-stock orders placed before the shipping cutoff.
OEM and Aftermarket Outboard Parts
OEM parts are supplied by the original engine manufacturer and are designed for the specific engine application. Aftermarket parts are replacement components produced by independent marine parts manufacturers and may provide additional availability or value for many common repairs.
Pro Marine carries both genuine OEM parts and quality aftermarket replacement parts for many outboard maintenance, repair, and rebuild applications. Always confirm fitment using the engine model, serial number, horsepower, year range, or OEM part number when available.
Frequently Asked Questions
How do I find the correct parts for my outboard motor?
Start by identifying the engine manufacturer, horsepower, model number, serial number, and year. Select the manufacturer above to browse by engine system, or use the OEM parts lookup to locate the original part number from a factory diagram.
Can I search Pro Marine by OEM part number?
Yes. If you already have the OEM part number, enter it 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.
What information should I have before ordering an outboard part?
Have the engine manufacturer, horsepower, model number, serial number, and year whenever possible. An OEM part number from the original component or parts diagram is especially helpful because visually similar parts may fit different engine families.
What is the difference between OEM and aftermarket outboard parts?
OEM parts come from the original engine manufacturer. Aftermarket parts are replacement components manufactured by other marine parts companies for compatible applications. Pro Marine carries both OEM and aftermarket options across many common outboard engine systems.
Are aftermarket outboard motor parts reliable?
Quality aftermarket marine parts are commonly used for maintenance, professional repair, and engine rebuilding. The best option depends on the application, manufacturer, availability, and customer preference.
Do you carry parts for older outboard motors?
Yes. Pro Marine carries parts for many older Mercury, Mariner, Johnson, Evinrude, Chrysler, Force, Yamaha, Honda, Suzuki, Nissan, and Tohatsu outboards. Availability varies by engine family and component.
What outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump impellers, complete water pump kits, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Outboard parts can vary by model, serial range, horsepower, and production year. Confirm the OEM part number or engine identification information whenever possible before ordering.
5034087
17461-87E00
17461-87E10
17461-87E11
17461-87E12
18-3049
5030723
778306
647-14385-00-00
80450M
Sierra Fuel Pump Kit 18-7811
The Sierra 18-7811 Fuel Pump Kit is a rebuild kit designed for Mercury and Mariner inline 6-cylinder 2-stroke outboards. This kit restores proper fuel delivery by replacing worn diaphragms and internal components in mechanical fuel pumps.
Fitment Overview
This Sierra kit replaces Mercury OEM part numbers 66599A1 and 89031A1, along with GLM 40350 and Mallory 9-37756. These part numbers identify a fuel pump family used on Mercury inline-6 engines.
Compatibility
| Brand | Horsepower | Engine Type |
|---|---|---|
| Mercury | 90 HP | Inline 6-Cylinder 2-Stroke |
| Mercury | 115 HP | Inline 6-Cylinder 2-Stroke |
| Mercury | 140 HP | Inline 6-Cylinder 2-Stroke |
| Mariner | 90 HP | Inline 6-Cylinder 2-Stroke |
| Mariner | 115 HP | Inline 6-Cylinder 2-Stroke |
| Mariner | 140 HP | Inline 6-Cylinder 2-Stroke |
These engines use a mechanical diaphragm-style fuel pump associated with the 66599A1 / 89031A1 fuel pump assembly.
Example Model Applications
- Mercury 90HP inline-6 2-stroke models
- Mercury 115HP inline-6 2-stroke models
- Mercury 140HP inline-6 2-stroke models
- Mariner equivalent inline-6 models
These are typical applications. Always verify by matching your OEM part number.
Fits These Serial Ranges
This fuel pump kit is used across multiple Mercury inline-6 engine generations and does not follow a single serial-number break.
Important: Confirm compatibility by matching your existing fuel pump or OEM number to 66599A1, 89031A1, 18-7811, 40350, or 9-37756.
Need the alternate fuel pump kit for a different pump style?
View Pro Marine Fuel Pump Kit 115 (A3 Style)
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Sierra | 18-7811 |
| Mercury OEM | 66599A1 |
| Mercury OEM | 89031A1 |
| GLM | 40350 |
| Mallory | 9-37756 |
What This Part Is Used For
This kit rebuilds diaphragm-style fuel pumps by replacing worn internal components such as gaskets, valves, and diaphragms. It restores proper fuel flow and pressure to the engine.
- Rebuilds mechanical fuel pump assemblies
- Restores fuel pressure and delivery
- Helps eliminate fuel starvation issues
- Supports reliable engine performance
A failing fuel pump can cause hesitation, stalling, hard starting, or poor acceleration.
System Function and Connections
- System Type: Mechanical fuel delivery
- Pump Type: Diaphragm fuel pump
- Location: Engine-mounted fuel pump assembly
FAQ
What engines does this kit fit?
It fits Mercury and Mariner inline 6-cylinder 2-stroke outboards in the 90HP, 115HP, and 140HP range using the A1-style fuel pump.
What is the difference between this and the A3 kit?
This kit fits the A1-style fuel pump (66599A1 / 89031A1). Some engines use a different pump design that requires the A3 kit.
How do I confirm fitment?
Match your fuel pump number or OEM part number to the cross references listed above.
What are signs of a bad fuel pump?
Hard starting, fuel starvation, hesitation, or engine stalling.
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
Searchable Part Numbers
18-7811, 66599A1, 89031A1, 40350, 9-37756, Sierra fuel pump kit, Mercury inline 6 fuel pump kit, Mercury 115 fuel pump rebuild kit
18-7811
40370
508429
66599A1
89031A1
9-37752
6E5-43880-01-00
6E5-43880-02-00
6267
688-43880-10-00
8M6007568
OEM Mercury / Quicksilver Carburetor Float
Genuine Mercury Float for WME Carburetor Applications
This OEM Mercury / Quicksilver carburetor float is genuine Mercury part number 1395-9594.
The float is used in compatible Mercury and Mariner WME carburetors to maintain proper fuel level inside the carburetor bowl for correct fuel metering and engine performance.
Compatible Applications
| Engine Range | Engine Type | Carburetor Family | Application Notes |
|---|---|---|---|
| Mercury / Mariner 30HP-40HP | 2-Stroke | WME Carburetors | Select 2-cylinder carbureted applications using float 1395-9594 |
| Mercury / Mariner 50HP-75HP | 2-Stroke | WME Carburetors | Select 3-cylinder carburetor assemblies using compatible WME carburetors |
| Mercury / Mariner 80HP-125HP | 2-Stroke | WME Carburetors | Select 3-cylinder and 4-cylinder carbureted applications |
| Mercury XR / Sea Pro Models | 2-Stroke | WME Carburetors | Used in select commercial and performance carbureted outboards |
A worn or fuel-soaked float may cause flooding, rich-running conditions, poor idle quality, fuel leakage, or hard starting.
Mercury used multiple WME carburetor configurations throughout the 30HP-125HP 2-stroke range. Always verify your engine serial number and carburetor model before ordering fuel system parts.
OEM Part Numbers & Cross References
| Reference Type | Part Number |
|---|---|
| Mercury / Quicksilver OEM | 1395-9594 |
| Sierra Aftermarket | 18-72000 |
| Alternate Search Format | 13959594 |
Aftermarket Sierra Alternative
Looking for the Sierra aftermarket version of this carburetor float?
See the Sierra 18-72000 Carburetor Float .
Related Carburetor Rebuild Kit
This float is commonly used with the following carburetor rebuild kit:
Sierra 7211-1 Carburetor Kit with Needle
What This Carburetor Float Does
The carburetor float works together with the needle and seat assembly to control fuel level inside the carburetor bowl.
Maintaining correct fuel level helps provide proper idle quality, throttle response, fuel delivery, and reliable engine operation.
Over time, floats may absorb fuel, become damaged, or lose buoyancy, which may lead to flooding or poor carburetor performance.
Replacing worn carburetor floats during carburetor service helps restore proper fuel system operation.
Features and Benefits
- Genuine Mercury / Quicksilver carburetor float
- OEM Mercury part number 1395-9594
- Fits select Mercury and Mariner 30-125HP 2-stroke outboards
- Compatible with many WME carburetor applications
- Helps maintain proper carburetor fuel level
- Common replacement during carburetor rebuild service
- Used in many Mercury XR and Sea Pro carbureted applications
- OEM-quality Mercury fuel system component
Carburetor Float Details
- Brand: Mercury / Quicksilver
- Part Number: 1395-9594
- Part Type: Carburetor Float
- Application: Mercury / Mariner 2-Stroke Carburetors
- Horsepower Range: 30HP-125HP
- Carburetor Family: WME
- System: Fuel / Carburetor
- Quantity Sold: Each
FAQ
What engines use Mercury float 1395-9594?
This float fits select Mercury and Mariner 30HP through 125HP carbureted 2-stroke outboards using compatible WME carburetors.
What carburetors use this float?
This float is commonly used in Mercury WME carburetor applications.
What happens if the carburetor float fails?
A damaged or fuel-soaked float may cause flooding, fuel leakage, poor idle quality, rich-running conditions, or hard starting.
Is there an aftermarket version available?
Yes. Sierra also offers the 18-72000 aftermarket carburetor float for the same general application family.
Is this float used with the Sierra 7211-1 carburetor kit?
Yes. This float is commonly associated with the Sierra 7211-1 carburetor rebuild kit with needle.
Should I verify my carburetor number before ordering?
Yes. Mercury used several WME carburetor variations depending on horsepower, serial range, and production year.
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.
- Fuel system components should be installed only after confirming correct fitment.
- 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
Searchable Terms
1395-9594, Mercury carburetor float, OEM Mercury float, Mercury WME float, Mercury carburetor bowl float, Mercury carb rebuild parts, Mercury fuel system float, Mercury 30HP carb float, Mercury 40HP carb float, Mercury 50HP carb float, Mercury 60HP carb float, Mercury 75HP carb float, Mercury 90HP carb float, Mercury 115HP carb float, Mercury 125HP carb float, Sierra 18-72000, Sierra 7211-1
9594
67F-81960-00-00
67F-81960-10-00
67F-81960-11-00
67F-81960-12-00
804278A12
804278T
804278T1
804278T11
17670-90J11
5033722
769768
813043T00
64E-43822-00-00
