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Personal Watercraft (PWC) Parts for Seadoo, Kawasaki, Yamaha Waverunner and more
Personal Watercraft Parts
Shop personal watercraft parts for maintenance, troubleshooting, repair, and full engine rebuild projects. This category includes OEM parts and quality OEM specification aftermarket products from Pro Marine for Sea-Doo, Yamaha WaveRunner, Kawasaki Jet Ski, Polaris, Tigershark, and other personal watercraft applications.
Browse PWC parts by brand and engine system, including fuel systems, ignition and electrical components, cooling systems, jet pump parts, internal engine components, gaskets, seals, carburetor kits, rebuild kits, steering components, wear rings, impellers, oil injection parts, and routine service items.
Shop Personal Watercraft Categories
Sea-Doo Sea-Doo engine, fuel, cooling, and jet pump parts 
Yamaha WaveRunner WaveRunner maintenance, rebuild, and repair parts 
Kawasaki Jet Ski Kawasaki jet pump, fuel, ignition, and engine parts 
Polaris Polaris PWC maintenance and engine rebuild parts 
Tigershark Tigershark engine, fuel, cooling, and rebuild parts Common Personal Watercraft Parts Found in This Category
- Jet pump rebuild kits, impellers, wear rings, and pump bearings
- Carburetor kits, fuel pumps, fuel filters, and fuel delivery components
- Ignition coils, stators, rectifiers, starters, and electrical parts
- Pistons, crankshafts, bearings, gaskets, seals, and engine rebuild parts
- Cooling system hoses, thermostats, water strainers, and cooling components
- Oil injection components, service kits, spark plugs, and maintenance parts
- Steering, throttle, trim, and control system components
Common Personal Watercraft Problems and Where to Start
- Overheating: inspect cooling passages, wear rings, impellers, thermostats, and jet pump condition.
- Hard starting or bogging: check carburetor kits, fuel delivery systems, ignition components, and compression.
- Cavitation or poor acceleration: inspect impellers, wear rings, jet pump seals, and intake grates.
- Low compression or engine failure: inspect pistons, crankshafts, bearings, cylinder condition, and oil injection systems.
- Charging or electrical problems: inspect stators, rectifiers, starters, batteries, and wiring connections.
Frequently Asked Questions
What is the difference between OEM and aftermarket PWC parts?
OEM parts are manufactured by the original personal watercraft manufacturer. Aftermarket parts are replacement parts produced by other manufacturers to fit the same application. Pro Marine provides quality OEM specification aftermarket products for PWC maintenance, repair, and rebuild applications.
How do I find the correct personal watercraft parts?
Use your PWC make, model, engine size, and serial number to confirm fitment. Many jet pump and engine parts vary by year range and engine family.
What brands are included in this category?
This category includes Sea-Doo, Yamaha WaveRunner, Kawasaki Jet Ski, Polaris, and Tigershark personal watercraft parts.
What are common signs my jet pump needs service?
Common symptoms include cavitation, poor acceleration, vibration, reduced top speed, abnormal pump noise, and excessive wear ring clearance.
Are aftermarket PWC parts reliable?
Yes. Quality aftermarket personal watercraft parts are commonly used by rebuilders and repair shops. Pro Marine offers OEM specification aftermarket products for many common PWC repair and maintenance applications.
Tip: Before ordering PWC parts, verify the model number, engine family, serial number, and pump application whenever possible.
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
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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
