5/16 in (8 mm) Marine Fuel Line Assembly with Primer Bulb, 6 ft
5/16 in (8 mm) Marine Fuel Line Assembly with Primer Bulb, 6 ft is backordered and will ship as soon as it is back in stock.
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5/16 in (8 mm) Marine Fuel Line Assembly with Primer Bulb, 6 ft
5/16 in (8 mm) Marine Fuel Line Assembly with Primer Bulb, 6 ft is backordered and will ship as soon as it is back in stock.
Product Details
This marine fuel line assembly includes a primer bulb and is designed for outboard fuel systems that require a 5/16 in (8 mm) inner-diameter hose. The line is approximately 6 ft (183 cm) long and may be suitable for many outboard applications when the hose size, connection style, fuel-system requirements, and flow direction match the original equipment.
The assembly is intended as an aftermarket replacement for compatible marine fuel-line applications. Always compare the hose diameter and connector arrangement with your existing fuel line before ordering. Compatibility should not be determined by engine brand alone.
- Primer bulb with dual check valves to assist fuel priming in different mounting orientations.
- Rubber hose construction described for resistance to UV exposure, ozone, and ethanol-blended fuel.
- Includes two stainless steel hose clamps for securing compatible hose connections.
Reference Information
The following aftermarket references appeared in the original listing as cross-reference information. They are provided as search aids only; verify dimensions and connection details before purchase.
| Brand | Reference Description | Verification |
|---|---|---|
| JLM Marine | 5/16 in fuel line | Confirm hose size and fittings |
| Sunny Glade | 5/16 in fuel line | Confirm hose size and fittings |
| TI Hood | 5/16 in fuel line | Confirm hose size and fittings |
Engine and Model Compatibility
This is a size-based replacement component rather than an engine-model-specific part. It may be used with compatible outboard fuel systems from brands such as Mercury, Yamaha, Suzuki, Tohatsu, Honda, Johnson, Evinrude, and OMC when the original hose has a 5/16 in (8 mm) inner diameter and the connections match.
| Brand Examples | Application | Required Verification |
|---|---|---|
| Mercury, Yamaha, Suzuki, Tohatsu, Honda | Compatible outboard fuel systems | Verify 5/16 in (8 mm) hose size, fittings, and fuel-system layout |
| Johnson, Evinrude, OMC | Compatible outboard fuel systems | Verify 5/16 in (8 mm) hose size, fittings, and fuel-system layout |
Engine horsepower, model year, stroke type, shaft length, and serial number do not establish fitment by themselves. Confirm the required hose diameter and connector configuration before installation.
Technical Specifications
- Product Type
- Marine fuel line assembly with primer bulb
- Application
- Compatible outboard fuel systems requiring a 5/16 in (8 mm) hose
- Fuel Type
- Gasoline and compatible ethanol-blended marine fuel, subject to the engine and fuel-system manufacturer’s requirements
- Connection
- Hose-barb connections secured with hose clamps; confirm connector compatibility before installation
- Hose Material
- Black rubber fuel hose
- Hose Color
- Black
- Dimensions
- Approximately 6 ft (183 cm) length; 5/16 in (8 mm) inner diameter
- Included Hardware
- Two stainless steel hose clamps
- Primer Bulb Features
- Dual check valves and directional fuel-flow arrow
- Material Features
- Designed for resistance to UV exposure, ozone, and ethanol-blended fuel
What’s in the Box
- 1 x Marine fuel line assembly with primer bulb, approximately 5/16 in (8 mm) inner diameter and 6 ft length
- 2 x Stainless steel hose clamps
Installation Notes
- Turn the engine off and allow it to cool. Work in a well-ventilated area away from sparks, flames, and other ignition sources.
- Disconnect the existing fuel line from the tank and outboard. Use an absorbent cloth to manage any minor fuel spillage.
- Inspect the tank and engine fuel connectors for dirt, wear, or damage. Clean or replace damaged connectors before installation.
- Confirm that the replacement hose and connections match the original system. Do not force an incompatible fitting onto the hose.
- Install the fuel line with the primer-bulb arrow pointing in the direction of fuel flow, from the fuel tank toward the engine.
- Secure both connections with the supplied hose clamps where appropriate. Do not overtighten and damage the hose.
- Squeeze the primer bulb until it becomes firm, then inspect every connection for leakage before starting the engine.
- If the bulb does not prime or the system leaks, stop and correct the installation before operating the boat.
Troubleshooting and FAQ
How do I know if this fuel line will fit my motor?
Measure the original hose and verify that the required inner diameter is 5/16 in (8 mm). Also compare the connection style, hose-barb size, fuel-tank connection, engine connection, and available hose length. Brand, horsepower, and stroke type alone are not sufficient to confirm fitment.
Which way should the primer-bulb arrow point?
The arrow indicates fuel-flow direction. It should point from the fuel tank toward the engine. Installing the bulb backward can prevent proper priming and fuel delivery.
What are signs that an old fuel line needs replacement?
Cracks, brittleness, swelling, fuel odor, visible leaks, or a primer bulb that will not remain firm can indicate a deteriorated hose or failing internal check valves. Inspect the complete fuel system before continued operation.
Is the hose suitable for ethanol-blended fuel?
The hose is described as ethanol-resistant, but fuel compatibility also depends on the engine, tank, connectors, and other system components. Follow the engine and fuel-system manufacturer’s fuel recommendations.
Is this an OEM part?
No. This listing is for an aftermarket replacement fuel-line assembly. Verify the dimensions and connections against the original component before purchase.
What should I do if the line leaks after installation?
Stop the engine, remove ignition sources, ventilate the area, and do not operate the fuel system until the leak is corrected. Recheck hose size, connector compatibility, clamp placement, and the direction of the primer bulb.
Safety and Important Information
- Verify the 5/16 in (8 mm) inner diameter, connection style, hose length, and fuel-system layout before ordering.
- Do not rely on engine brand, horsepower, year, or stroke type alone to determine compatibility.
- Inspect the line and all connections for leaks before starting the engine and after initial installation.
- Use only in applications and with fuels approved by the engine and fuel-system manufacturer.
- Professional installation is recommended when you are unsure about fuel-system service.
About Sea Sierra
- We supply aftermarket marine replacement components for maintenance and repair applications.
- Product fitment should always be confirmed against the original component and the manufacturer’s specifications.
- Our product information is organized to help customers compare dimensions, application requirements, and included components.
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