S2K Commerce - Products Dropdown
Actions
S2K Commerce - Order Entry
Actions
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.
18-3635
8M0090819
892864T06
F200 2019-2021
F225 2010-2023
F250 2010-2023
F300 2010-2023
F350 2023
18-45617
6CE-44352-00-00
8M0175392
8M6010334
89300
6Y8-83500-11-BK
6Y8-83500-11-00
6Y8-83500-20-00
6Y8-83500-21-00
6Y8-83500-22-00
6Y8-83500-23-00
6Y8-83500-24-00
Genuine Yamaha 60° Thermostat for F115 F130 VF115
Genuine Yamaha thermostat 6EK-12411-00-00 is a factory OEM 60°C thermostat for select Yamaha F115, LF115, F130, LF130 and VF115 FourStroke outboards. It regulates cooling-water flow to help the engine warm up correctly and maintain its intended operating temperature.
Genuine Yamaha Factory Replacement
This is the genuine Yamaha OEM thermostat, not an aftermarket replacement. Use it when the applicable Yamaha engine parts diagram specifies thermostat 6EK-12411-00-00.
Compatible Applications
This thermostat fits the following Yamaha outboard families when the engine parts diagram specifies OEM number 6EK-12411-00-00.
| Engine Family | Applicable Models | Catalog Range |
|---|---|---|
| Yamaha F115JB | F115JB and applicable _0120 through _0123 variants | 2006-Present |
| Yamaha F115LB Series | F115LB, F115LB2, F115LB3 and applicable catalog variants | 2006-Present |
| Yamaha F115XB Series | F115XB, F115XB2 and applicable catalog variants | 2006-Present |
| Yamaha LF115XB Series | LF115XB, LF115XB2 and applicable catalog variants | 2006-Present |
| Yamaha F130 and LF130 | F130LA, F130XA and LF130XA | 2006-Present |
| Yamaha VF115LA and VF115LB | VF115LA, VF115LB and applicable -20, _0120, _0121, _0222, _0223 and _0324 variants | 2006-Present |
| Yamaha VF115XA and VF115XB | VF115XA, VF115XB and applicable -20, _0120, _0121, _0222, _0223 and _0324 variants | 2006-Present |
Important Fitment Note
Yamaha model suffixes identify specific production versions and engine configurations. Confirm your complete engine model and verify that the applicable OEM parts diagram calls for thermostat 6EK-12411-00-00. Do not order using horsepower alone.
OEM & Cross Reference Numbers
| Brand | Part Number | Reference Type |
|---|---|---|
| Yamaha OEM | 6EK-12411-00-00 | Genuine OEM part number |
| Mercury | 8M0175396 | Superseded OEM reference |
| Mercury | 8M6010301 | OEM cross reference |
| Mercury | 8M6013870 | OEM cross reference |
What This Part is Used For
The thermostat regulates the flow of cooling water through the engine. It stays closed while the engine is cold to help the powerhead warm up efficiently, then opens as the engine reaches its intended operating temperature.
Proper thermostat operation supports consistent engine temperature, reliable idle quality, efficient combustion and dependable cooling-system performance.
Reasons to Inspect or Replace the Thermostat
A thermostat that remains closed may restrict cooling-water circulation and contribute to overheating.
A thermostat stuck open may prevent the engine from reaching its intended operating temperature.
Thermostats are commonly inspected during water-pump and other cooling-system maintenance.
Corrosion, salt and debris can interfere with thermostat movement and cooling-system performance.
Pro Marine Aftermarket Option Available
Pro Marine 60° Thermostat 6EK-12411P
Looking for a cost-effective alternative? The Pro Marine thermostat fits the same verified applications and replaces Yamaha OEM number 6EK-12411-00-00.
View Pro Marine ThermostatKey Features and Benefits
Factory Yamaha replacement for applications specifying part number 6EK-12411-00-00.
Calibrated to help the listed engines maintain their intended operating temperature.
Fits select Yamaha F115, LF115, F130, LF130 and VF115 FourStroke outboards.
Ideal for owners and technicians who prefer genuine Yamaha cooling-system components.
Frequently Asked Questions
Is this a genuine Yamaha thermostat?
Yes. This is the genuine Yamaha OEM thermostat, part number 6EK-12411-00-00.
What temperature is this thermostat?
This is a 60°C thermostat for the listed Yamaha FourStroke applications.
What Yamaha engines does it fit?
It fits select Yamaha F115, LF115, F130, LF130 and VF115 models whose parts diagrams specify thermostat 6EK-12411-00-00.
Is an aftermarket version available?
Yes. Pro Marine thermostat 6EK-12411P is available as a cost-effective aftermarket alternative.
How should I confirm fitment?
Confirm the complete engine model and verify that the applicable Yamaha OEM parts diagram specifies thermostat 6EK-12411-00-00 before ordering.
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.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- 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
6EK-12411-00-00, 6EK124110000, 8M0175396, 8M6010301, 8M6013870, Yamaha OEM thermostat, genuine Yamaha thermostat, Yamaha F115 thermostat, Yamaha LF115 thermostat, Yamaha F130 thermostat, Yamaha LF130 thermostat, Yamaha VF115 thermostat, Yamaha V MAX SHO thermostat, 60 degree Yamaha thermostat
8M0175396
8M6010301
8M6013870
6X38258P Yamaha 10-Pin Main Wiring Harness - 20 FT
The Pro Marine 6X38258P is a 20-foot Yamaha-style 10-pin main wiring harness for compatible Yamaha outboard conventional-control rigging systems.
This aftermarket harness provides the main electrical connection between compatible Yamaha outboards and the boat's conventional helm/control wiring. It is an aftermarket alternative to Yamaha 688-8258A-60-00 and the earlier 6X3-8258A-10-00 20-foot harness.
Product Information
- Pro Marine Part Number: 6X38258P
- Brand: Pro Marine
- Part Type: Main Engine Wiring Harness
- Harness Type: Yamaha 10-Pin
- Length: 20 FT
- Primary OEM Replacement: 688-8258A-60-00
- Earlier Yamaha Number: 6X3-8258A-10-00
- Application: Compatible Yamaha outboards using the conventional 10-pin main harness system
Important Fitment Note
This is specifically a 20 FT, 10-pin Yamaha main harness. Do not order based only on the Yamaha brand or engine horsepower.
Yamaha has used different main-harness connector styles, harness lengths, control systems, and rigging configurations. Confirm that your application uses the conventional Yamaha 10-pin main harness before ordering.
Also verify harness length. Several Yamaha part numbers in this harness family use the same general 10-pin configuration but are supplied in different lengths.
OEM and Cross Reference Numbers
The Pro Marine 6X38258P is the 20 FT aftermarket version of the Yamaha conventional 10-pin main harness.
| Part Number | Brand / Relationship | Length |
|---|---|---|
| 6X38258P | Pro Marine Aftermarket | 20 FT |
| 688-8258A-60-00 | Yamaha OEM - Direct 20 FT Version | 20 FT |
| 6X3-8258A-10-00 | Earlier Yamaha Number / Superseded by 688-8258A-60-00 | 20 FT Class |
| 6X3-8258A-00-00 | Related Yamaha 10-Pin Harness | Approx. 16.4 FT / 5 m |
| 688-8258A-50-00 | Related Yamaha 10-Pin Harness | 16.4 FT |
| 688-8258A-70-00 | Related Yamaha 10-Pin Harness | 23 FT |
Yamaha 688-8258A-60-00 20 FT Main Harness
Prefer genuine Yamaha OEM? Pro Marine USA also offers 688-8258A-60-00, the Yamaha OEM 20-foot conventional 10-pin main harness and the OEM counterpart to this Pro Marine aftermarket version.
What This Harness is Used For
The main wiring harness provides the electrical connection between a compatible Yamaha outboard and the boat's conventional helm/control electrical system.
On compatible Yamaha 10-pin systems, the harness carries the circuits required between the engine-side connection and the conventional control system at the helm.
This type of harness is commonly replaced during a repower, control-box replacement, complete boat re-rig, wiring restoration, or when the original harness has been damaged or corroded.
Compatible Applications
| Application | Requirement |
|---|---|
| Yamaha Outboard | Must use compatible conventional Yamaha 10-pin main harness system |
| Harness Length | 20 FT |
| OEM Harness Match | 688-8258A-60-00 or earlier 6X3-8258A-10-00 20 FT application |
This listing should not be interpreted as fitting every Yamaha outboard. Yamaha fitment depends on the engine, control system, connector configuration, rigging generation, and harness length.
10-Pin Conventional Control Harness
This part is for Yamaha applications using the 10-pin conventional main harness.
It should not be confused with Yamaha digital electronic control, Command Link Plus DEC, or other harness systems that use different connectors and wiring arrangements. Compare your existing connectors and OEM number before ordering.
Common Replacement Reasons
- Original main harness has damaged, cut, or brittle wiring.
- Connector pins are corroded, bent, damaged, or missing.
- Electrical problems are traced to damage within the existing harness.
- Boat is being re-rigged with a compatible Yamaha conventional 10-pin control system.
- Existing harness is being replaced during an engine repower.
- Restoration of an older Yamaha rigging installation.
- A 20-foot harness length is required for the boat's engine-to-helm routing.
Installation Tips
- Disconnect battery power before servicing or replacing the engine wiring harness.
- Confirm both ends use the correct Yamaha 10-pin connector configuration before routing the harness.
- Compare the replacement harness with the original harness before installation.
- Route the harness away from sharp edges, moving steering components, excessive heat, and areas where water can collect.
- Do not stretch the harness tightly between the engine and helm.
- Allow enough movement at the engine end for normal steering and engine movement.
- Inspect mating connectors and terminals for corrosion or damage before connecting the new harness.
- Secure the harness properly to prevent chafing and vibration damage.
Key Features and Benefits
- Pro Marine Brand: Cost-effective aftermarket alternative to the Yamaha OEM harness.
- 20 FT Length: Designed for applications requiring the Yamaha 20-foot main harness.
- 10-Pin Configuration: For compatible Yamaha conventional-control rigging systems.
- OEM Replacement: Replaces Yamaha 688-8258A-60-00 applications.
- Earlier Number Coverage: Cross-references the earlier 6X3-8258A-10-00 20-foot harness.
- Rigging Replacement: Useful for re-rigging, repowers, restorations, and damaged-harness replacement.
- OEM Option Available: Genuine Yamaha 688-8258A-60-00 is also available from Pro Marine USA.
Frequently Asked Questions
What is Pro Marine 6X38258P?
6X38258P is a Pro Marine aftermarket 20-foot main wiring harness for compatible Yamaha outboards using the conventional 10-pin harness system.
How long is the 6X38258P harness?
It is a 20-foot harness.
How many pins does this Yamaha harness use?
This is a 10-pin main harness.
Does 6X38258P replace Yamaha 688-8258A-60-00?
Yes. 688-8258A-60-00 is Yamaha's 20-foot conventional 10-pin main harness and is the primary OEM counterpart for Pro Marine 6X38258P.
What happened to Yamaha 6X3-8258A-10-00?
Yamaha 6X3-8258A-10-00 is an earlier number associated with the 20-foot harness application and was superseded by 688-8258A-60-00.
Is 688-8258A-50-00 the same as this harness?
It is part of the related Yamaha 10-pin main-harness family, but it is approximately 16.4 feet long. The Pro Marine 6X38258P on this page is the 20-foot version.
Is 688-8258A-70-00 the same length?
No. Yamaha 688-8258A-70-00 is approximately 23 feet long. Verify the length required for your boat before choosing between harness versions.
Does this fit every Yamaha outboard with conventional controls?
No. Yamaha has used several harness and control configurations. Your engine and controls must use the compatible 10-pin main harness configuration.
Is this for Yamaha Command Link Plus digital controls?
No. This listing is for the conventional Yamaha 10-pin main harness. Digital electronic control and Command Link Plus systems can use different harnesses and connector configurations.
Should I order by horsepower?
No. For an electrical rigging component such as this, confirm the connector type, control system, original part number, and required harness length rather than ordering by horsepower alone.
Is a genuine Yamaha OEM version available?
Yes. Pro Marine USA also carries the genuine Yamaha 688-8258A-60-00 20 FT wiring harness .
How do I know whether 20 feet is long enough?
Measure the required routing distance from the engine to the helm using the path the harness will actually follow. Allow sufficient routing length for bends, secure mounting, and normal engine steering movement.
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.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- 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
6X38258P, 6X3-8258A-10-00, 688-8258A-60-00, 6X3-8258A-00-00, 688-8258A-50-00, 688-8258A-70-00, 6X38258A1000, 6888258A6000, 6X38258A0000, 6888258A5000, 6888258A7000
Searchable Terms
Yamaha 10 pin harness, Yamaha 10-pin main harness, Yamaha 20 foot wire harness, Yamaha 20 ft wiring harness, Yamaha outboard main harness, Yamaha engine to control harness, Yamaha conventional control harness, Yamaha rigging harness, Yamaha remote control wiring harness, Yamaha engine wiring harness, 688-8258A-60-00 replacement, 6X3-8258A-10-00 replacement, Pro Marine 6X38258P, aftermarket Yamaha harness, Yamaha boat wiring harness, 10 pin outboard harness
6X3-8258A-10-00
688-8258A-50-00
688-8258A-60-00
688-8258A-70-00
81158M
95533M
97051M
17461-96300
17461-96301
17461-96302
17461-96310
17461-96311
17461-96312
18-8904
2175
5031417
778296