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Honda Outboard Parts
Shop OEM and aftermarket Honda outboard parts for maintenance, repair, troubleshooting, and complete engine service projects. Browse Honda marine parts by system, including cooling, fuel delivery, electrical, internal engine components, lower unit parts, steering, trim, and routine maintenance items.
Pro Marine USA carries Honda outboard engine parts for a wide range of BF-series Four Stroke applications, from portable engines through high-horsepower offshore models. Use your engine model, horsepower, serial number, or OEM part number whenever possible to confirm fitment before ordering.
Shop Honda Outboard Parts by System
- Control Cables and Boxes
- Cooling System
- Electrical System
- Engine Oil
- Fuel and Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Steering Systems
- Transom and Midsection
- Trim System
Find the Correct Honda Outboard Part
Honda outboard parts can vary by engine model, horsepower, serial number range, and production year. If you are unsure which component fits your engine, use the OEM parts lookup to identify the original Honda part number from a factory parts diagram.
Once you have the OEM part number, search Pro Marine to find available genuine Honda and aftermarket replacement options.
Use Our OEM Parts Lookup »Common Honda Outboard Engine Families
Pro Marine supports many Honda BF-series outboards across a wide horsepower range. Always confirm the exact engine model and serial information before ordering parts.
- Portable: Honda BF2 through BF20 applications
- Midrange: BF25 through BF90 engine families
- Large Four Stroke: BF100 through BF150 applications
- High-Horsepower Offshore: BF200, BF225, BF250, and newer large-displacement Honda platforms
- Four Stroke: Honda marine outboards across modern BF-series engine families
Common Honda Outboard Repair Areas
- Engine overheating: inspect the water pump, impeller, thermostat, cooling passages, pressure-control components, and engine anodes.
- Hard starting or rough running: inspect fuel pumps, filters, injectors or carburetors, spark plugs, ignition components, and intake sealing.
- Charging or electrical problems: inspect ignition coils, charging components, sensors, wiring, grounds, and related electrical parts.
- Low compression or power loss: inspect valves, pistons, rings, cylinder condition, bearings, gaskets, and internal engine components.
- Lower unit noise or water intrusion: inspect prop shaft seals, driveshaft seals, shift shaft seals, bearings, gears, and gear lube condition.
- Trim or steering problems: inspect trim motors, hydraulic components, steering systems, hoses, seals, and related rigging parts.
Why Buy Honda Outboard Parts from Pro Marine USA?
- OEM Honda and aftermarket replacement options for many common applications.
- Parts for routine maintenance, professional repair, lower units, fuel systems, electrical systems, steering, trim, and internal engine work.
- 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 Honda cooling, fuel, electrical, lower unit, steering, and service components.
- Fast weekday shipping on qualifying in-stock orders.
Frequently Asked Questions
How do I find the correct Honda outboard part?
Start with the engine model, horsepower, serial number, and production year whenever available. Use the OEM parts lookup to identify the original Honda part number from the factory diagram.
Can I search Honda parts by OEM part number?
Yes. Enter the Honda 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 Honda outboard parts vary by model and serial number?
Yes. Honda may use different components across engines with similar horsepower depending on model, production range, and serial number. Confirm the complete engine identification information before ordering.
Do you carry parts for Honda BF-series outboards?
Yes. Pro Marine carries parts for many Honda BF-series applications, from portable engines through large Four Stroke offshore models, including cooling, fuel, electrical, internal engine, lower unit, steering, and trim components.
Do you carry both OEM and aftermarket Honda parts?
Yes. Pro Marine offers genuine Honda parts along with aftermarket replacement parts for many common Honda outboard maintenance and repair applications.
What Honda 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 model-specific service components.
Fitment Tip: Honda outboard parts can vary by model, horsepower, serial number range, and production year. Confirm the OEM part number or complete engine identification information whenever possible before ordering.
MPI Type A Low-Permeation Marine Fuel Hose
MPI 5/16" Type A Marine Fuel Hose - Sold by the Foot
The MPI 313-1 5/16" Type A Marine Fuel Hose is a low-permeation bulk fuel line for marine installations requiring the additional fire-resistant protection associated with USCG Type A fuel hose.
This hose is a strong choice for enclosed, below-deck and other installations where Type A hose is required. It is sold by the foot so you can purchase the exact length needed for the boat.
Pro Marine also stocks the correct Oetiker 4-170 ear clamp, a compatible 5/16" primer bulb, clamp installation tools and alternate 5/16" fuel-hose options.
Inside Diameter: 5/16"
Manufacturer: MPI Products
Fuel Hose Type: Type A Marine Fuel Hose
Construction: Low Permeation
Sold: By the Foot
Recommended Clamp: Oetiker 4-170
Recommended Primer Bulb: Pro Marine 8004 - 5/16"
How to Order Bulk Fuel Hose
This hose is sold by the foot. Enter the quantity based on the total continuous length needed for your installation.
For example, if you need 10 feet of hose, order a quantity of 10.
What Does Type A Marine Fuel Hose Mean?
Marine fuel hose is classified according to its intended fuel-system use, permeation performance and fire-resistance requirements.
Type A hose meets the applicable marine fuel-hose performance standard and also meets the additional USCG fire-test requirement. This makes Type A hose the appropriate choice in marine installations where additional fire resistance is required.
Type A1 vs. Type A2
| Classification | General Application | Permeation Class |
|---|---|---|
| Type A1 | Fuel-feed hose, including tank-to-engine applications where Type A hose is required | Lower permeation |
| Type A2 | Certain fuel-fill and vent applications | Higher permitted permeation than Class 1 |
For marine fuel-feed hose between the fuel tank and engine, federal requirements specifically identify USCG Type A1 as the Type A fuel-feed classification.
Always confirm the exact hose marking and requirements for your particular fuel-system installation before ordering.
When Should You Choose Type A Fuel Hose?
Type A fuel hose is generally selected when the fuel line is routed through an area where the installation requires the additional USCG fire-resistant hose classification.
This commonly includes many enclosed or below-deck installations, as well as other fuel-system layouts where Type A hose is specified by the boat builder, engine manufacturer or applicable regulation.
Complete Your 5/16" Fuel Line Setup
Oetiker 4-170 Ear Clamp - 10 Pack
Matching Oetiker ear clamp for the MPI 313-1 5/16" Type A marine fuel hose.
View Oetiker 4-170 Clamp
Pro Marine 8004 - 5/16" Primer Bulb
5/16" primer bulb for compatible outboard fuel-line assemblies using 5/16" fuel hose.
View 5/16" Primer Bulb
Oetiker Standard Jaw Pincer Tool
Pincer tool for properly closing Oetiker ear clamps during marine fuel-line installation.
View Oetiker Pincer Tool
Oetiker Clamp Pack with Tool
Complete assortment of commonly used marine Oetiker clamp sizes with the installation tool included.
View Oetiker Clamp PackOther 5/16" Fuel Hose Options
MPI 5/16" Type B1/B2 Fuel Hose - 315-056
Type B alternative for exposed and above-deck installations where Type B hose is permitted.
Matching Clamp: Oetiker 4-153
View 5/16" Type B Fuel Hose
Mercury OEM 5/16" Silver Fuel Hose
Genuine Mercury Marine 5/16" bulk fuel hose for compatible Mercury outboard fuel-line applications.
Matching Clamp: Oetiker 4-145
View Mercury OEM Fuel Hose5/16" Fuel Hose Comparison
| Fuel Hose | Type | Recommended Clamp |
|---|---|---|
| MPI 313-1 | Type A Low-Permeation | Oetiker 4-170 |
| MPI 315-056 | Type B1/B2 | Oetiker 4-153 |
| Mercury OEM #100 | Mercury Silver Fuel Hose | Oetiker 4-145 |
Why Do Different 5/16" Hoses Use Different Clamps?
The 5/16" measurement describes the hose's inside diameter. It does not tell you the outside diameter.
Type A hose typically has a different construction and wall thickness than Type B or OEM hose, so its outside diameter can be larger even though all of the hoses have the same 5/16" inside diameter.
That is why the MPI 313-1 Type A hose uses the Oetiker 4-170 clamp, while the Type B hose uses 4-153 and the Mercury silver hose uses 4-145.
What This Fuel Hose is Used For
The MPI 313-1 Type A fuel hose is intended for building, repairing or replacing compatible marine fuel lines where a Type A fuel-hose classification is required.
Typical installations may include permanent marine fuel systems, enclosed routing areas and tank-to-engine applications requiring Type A1 fuel-feed hose.
Building a 5/16" Type A Fuel Line
Depending on the installation, a complete setup may require:
- MPI 313-1 5/16" Type A fuel hose
- Oetiker 4-170 ear clamps
- 5/16" primer bulb
- Correct tank-side fitting
- Correct engine-side fitting or connector
- Oetiker pincer installation tool
Key Features & Benefits
- 5/16" inside diameter
- MPI Products marine fuel hose
- Type A marine fuel-hose construction
- Low-permeation design
- Suitable for applications requiring Type A fire resistance
- Common choice for enclosed and below-deck installations
- Sold by the foot
- Matching Oetiker 4-170 clamp available
- Compatible 5/16" primer bulb available
- Type B and Mercury OEM 5/16" alternatives available
Need Help Choosing the Right Marine Fuel Hose?
Selecting the correct fuel hose depends on more than hose diameter. Installation location, fuel-hose classification, permeation rating, fittings, primer bulb and clamp size all matter.
Visit the Pro Marine Fuel Line Technical Center
FAQ
What size is MPI 313-1?
It has a 5/16" inside diameter.
Is this fuel hose sold by the foot?
Yes. Order the number of feet required for your installation.
What is Type A marine fuel hose?
Type A hose meets the applicable marine fuel-hose performance standard
and the additional USCG fire-test requirement.
Can Type A hose be used below deck?
Type A hose is commonly selected for enclosed and below-deck installations
where the additional fire-resistant classification is required.
What is the difference between Type A1 and A2?
Type A1 is the lower-permeation Type A classification typically used for
fuel-feed applications. Type A2 permits greater permeation and is used
for certain fill and vent applications.
Which clamp fits this hose?
Use the Oetiker 4-170 ear clamp with MPI 313-1.
Which primer bulb fits this hose?
The
Pro Marine 8004 5/16" Primer Bulb
matches the hose size.
What if I need an above-deck Type B fuel hose?
Pro Marine stocks the
MPI 315-056 5/16" Type B1/B2 fuel hose
.
Do you stock Mercury OEM 5/16" fuel hose?
Yes. The
Mercury OEM 5/16" silver fuel hose
is also available by the foot.
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 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 choosing the correct fuel hose?
Contact Pro Marine
Phone: 941-721-3000
Searchable Terms
313-1, MPI 313-1, 5/16 Type A fuel hose, 5/16 marine fuel hose, Type A1 fuel hose, Type A2 fuel hose, low permeation fuel hose, below deck fuel hose, enclosed marine fuel hose, marine fuel line by the foot, bulk marine fuel hose, tank to engine fuel hose, outboard fuel line, boat fuel hose, Oetiker 4-170, 4-170 fuel hose clamp, 5/16 primer bulb, marine primer bulb, Type A marine fuel line, USCG fuel hose
54-13791
8M0214911
888988015
888441
0769091
18-9127-9
Genuine Mercury Marine Bulk Fuel Hose
Mercury OEM 5/16" Silver Fuel Hose - Sold by the Foot
This Mercury OEM 5/16" silver fuel hose is a genuine Mercury Marine bulk fuel line for building, repairing or replacing 5/16" fuel-hose assemblies on compatible Mercury outboard applications.
The hose is sold by the foot, allowing you to purchase the length needed for your boat instead of being limited to a preassembled fuel-line length.
Pro Marine also stocks the correct Oetiker 4-145 ear clamp, a compatible 5/16" primer bulb, Oetiker installation tools and alternative marine fuel hose for Type A and Type B applications.
Brand: Mercury Marine
Type: Genuine Mercury OEM Fuel Hose
Inside Diameter: 5/16"
Color: Silver
Sold: By the Foot
Recommended Clamp: Oetiker 4-145
Recommended Primer Bulb: Pro Marine 8004 - 5/16"
How to Order Mercury Bulk Fuel Hose
This Mercury fuel hose is sold by the foot. Enter the quantity based on the continuous length of hose needed for your installation.
For example, if you need 6 feet of fuel line, order a quantity of 6.
Genuine Mercury Marine Fuel Hose
This hose is an OEM option for customers who prefer to use Mercury Marine fuel hose when servicing or building a Mercury outboard fuel-line system.
Its 5/16" inside diameter allows it to be paired with compatible 5/16" fuel-system components, including the Pro Marine 8004 primer bulb.
The 5/16" measurement refers to the hose's inside diameter. Different 5/16" fuel hoses can have different wall thicknesses and outside diameters.
This Mercury silver fuel hose uses the Oetiker 4-145 ear clamp. Do not substitute the 4-153 clamp used with our MPI 315-056 5/16" Type B hose simply because both hoses have a 5/16" inside diameter.
Complete Your Mercury 5/16" Fuel Line
Oetiker 4-145 Ear Clamp - 10 Pack
The matching Oetiker ear clamp for this Mercury OEM 5/16" silver fuel hose.
View Oetiker 4-145 Clamp
Pro Marine 8004 - 5/16" Primer Bulb
Compatible 5/16" primer bulb for building or servicing an outboard fuel-line assembly using 5/16" hose.
View 5/16" Primer Bulb
Oetiker Standard Jaw Pincer Tool
Standard-jaw pincer for properly closing Oetiker ear clamps during fuel-line assembly and repair.
View Oetiker Pincer Tool
Oetiker Clamp Pack with Tool
An assortment of commonly used Oetiker clamp sizes with the installation tool included. A convenient option for marine shops, technicians and customers working with multiple fuel-hose sizes.
View Oetiker Clamp PackOther 5/16" Marine Fuel Hose Options
Fuel-hose selection should be based on more than inside diameter. The required hose classification and construction depend on the location and design of the boat's fuel system.
MPI 5/16" Type B1/B2 Fuel Hose
5/16" USCG Type B1/B2 bulk marine fuel hose for exposed and above-deck applications where Type B hose is appropriate.
Matching Clamp: Oetiker 4-153
View 5/16" Type B Fuel Hose
5/16" Type A1/A2 Marine Fuel Hose
5/16" Type A marine fuel hose for installations requiring the additional Type A fire-resistant classification, including applicable enclosed and below-deck fuel-system installations.
View 5/16" Type A Fuel HoseMercury OEM vs. MPI 5/16" Fuel Hose
| Fuel Hose | Inside Diameter | Matching Oetiker Clamp |
|---|---|---|
| Mercury OEM Silver Fuel Hose | 5/16" | 4-145 |
| MPI 315-056 Type B Fuel Hose | 5/16" | 4-153 |
Both hoses have a 5/16" inside diameter, but they do not use the same Oetiker clamp. Always match the clamp to the specific hose being installed.
What This Fuel Hose is Used For
Mercury OEM 5/16" bulk fuel hose can be used when building, replacing or repairing compatible Mercury outboard fuel-line assemblies.
Bulk hose gives boat owners and marine technicians the flexibility to select the required length and combine it with the appropriate primer bulb, fittings, connectors and clamps for the specific installation.
Building a Mercury 5/16" Fuel Line
Depending on the installation, a complete fuel-line setup may require:
- Mercury OEM 5/16" silver fuel hose
- 5/16" primer bulb
- Correct engine-side fitting or fuel connector
- Correct tank-side fitting or connection
- Oetiker 4-145 ear clamps
- Oetiker pincer tool
Key Features & Benefits
- Genuine Mercury Marine fuel hose
- 5/16" inside diameter
- Silver Mercury OEM hose
- Sold by the foot for custom-length installations
- Ideal for building and repairing compatible Mercury fuel lines
- Matching Oetiker 4-145 clamps available
- Compatible 5/16" primer bulb available
- Oetiker installation tool and complete clamp assortment available
- 5/16" Type A and Type B alternative hoses available
Need Help Choosing the Right Marine Fuel Hose?
Choosing the correct marine fuel line depends on hose diameter, installation location, fuel-hose classification, fittings, primer bulb and the outside diameter required for the correct clamp.
Visit the Pro Marine Fuel Line Technical Center
FAQ
What size is this Mercury fuel hose?
This Mercury fuel hose has a 5/16" inside diameter.
Is this genuine Mercury fuel hose?
Yes. This listing is for genuine Mercury Marine OEM fuel hose.
Is the Mercury hose sold by the foot?
Yes. Order the quantity corresponding to the number of feet required for
your installation.
Which Oetiker clamp fits this Mercury hose?
Use the
Oetiker 4-145 ear clamp
with this Mercury OEM silver fuel hose.
Which primer bulb fits this hose?
The
Pro Marine 8004 5/16" Primer Bulb
matches the hose's 5/16" inside diameter.
Can I use an Oetiker 4-153 clamp on this hose?
The recommended clamp for this Mercury OEM hose is
Oetiker 4-145. The larger 4-153 clamp is matched to
Pro Marine's MPI 315-056 Type B 5/16" hose.
Why do two 5/16" fuel hoses use different clamps?
5/16" describes the hose's inside diameter. Different hose constructions
can have different wall thicknesses and outside diameters, which changes
the required clamp size.
What if I need 5/16" Type B fuel hose?
Use the
MPI 315-056 5/16" Type B1/B2 Fuel Hose
for appropriate exposed and above-deck Type B applications.
What if I need Type A fuel hose?
Pro Marine stocks
5/16" Type A1/A2 Marine Fuel Hose
for installations requiring the Type A classification.
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 Terms
Mercury 100 fuel hose, Mercury OEM fuel hose, Mercury silver fuel line, Mercury silver fuel hose, 5/16 Mercury fuel hose, 5/16 Mercury fuel line, Mercury outboard fuel hose, Mercury bulk fuel line, Mercury fuel hose by the foot, OEM Mercury fuel line, outboard fuel line, boat fuel hose, 5/16 marine fuel hose, Oetiker 4-145, 4-145 fuel hose clamp, 5/16 primer bulb, Mercury primer bulb hose, bulk marine fuel hose
8M0038500
0777738
0909985
174177
3852480
777738
0173311
0303665
0387121
0777353
123199
173311
303665
33074
387121
57307
631861
777353
9-38016
9-38019
9-38019
0769100
18-9128-9