Marine Fuel Line with Primer Bulb – Fits Outboard Motors 5/16" (8mm) 6FT

Marine Fuel Line with Primer Bulb – 5/16" (8mm) 6FT for Outboard Motors

This universal marine fuel line assembly includes a high-quality primer bulb and is compatible with most major outboard motor brands, including Mercury, Yamaha, Suzuki, Tohatsu, Honda, and Johnson/Evinrude. It is designed for applications requiring a 5/16" (8mm) inner diameter hose and has a total length of 6 feet.

This assembly is a direct replacement for other aftermarket brands including JLM Marine 5/16", Sunny Glade 5/16", TI Hood 5/16", and can be used in place of some 3/8" lines like the OXCANO model where appropriate.

• Compatible with gasoline, diesel, and ethanol-blended fuels.
• Features dual check valves for efficient priming in multiple orientations.
• Engineered with UV, ozone, and ethanol-resistant low-permeation rubber.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

For Suzuki owners, you can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Fuel Line Assembly with Primer Bulb (5/16" or 8mm inner diameter, 6ft length)
• 2 x Stainless Steel Hose Clamps

Installation Guide

1. Ensure the engine is completely off and has cooled down. Work in a well-ventilated area.
2. Disconnect the old fuel line from both the fuel tank and the outboard motor. Have a rag ready to catch any minor fuel spillage.
3. Attach the new fuel line assembly. Ensure the arrow on the primer bulb points in the direction of fuel flow (from the tank towards the engine).
4. Securely fasten the connections at the engine and tank ports using the new stainless steel hose clamps provided.
5. Squeeze the primer bulb repeatedly until it feels firm and full of fuel.
6. Before starting the engine, carefully inspect the fuel line and all connection points for any signs of leaks.

Troubleshooting & FAQ

Q: How do I know if this fuel line will fit my motor?

A: This is a universal fuel line designed for a 5/16" (8mm) inner diameter connection. It fits most outboard motors from 2 HP to 200 HP, including major brands like Yamaha, Suzuki, Honda, and Mercury. The most important step is to verify your motor's current fuel line connection size is 5/16" before ordering.

Q: My primer bulb isn't getting hard or staying firm. What's wrong?

A: First, check that the arrow on the primer bulb is pointing in the direction of fuel flow (towards the engine from the tank). An incorrect orientation will prevent the check valves from working. Also, ensure all connections are airtight and there's sufficient fuel in the tank. If it still won't prime, there may be an air leak in the line or an issue with your fuel tank's pickup.

Q: How often should I replace my marine fuel line?

A: For safety and performance, we recommend inspecting your fuel line at the beginning of each boating season for cracks, stiffness, or other signs of degradation. A full replacement is advised every 2-3 years, or immediately if you notice fuel leaks, a strong smell of gasoline, or if the primer bulb fails to hold pressure.

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.