5/16 IN 6.5 FT Fuel Line with Primer Bulb – Fits Yamaha Outboard Motors 4-350 HP (Replaces 6Y1-24306-55)
5/16 IN 6.5 FT Fuel Line with Primer Bulb – Fits Yamaha Outboard Motors 4-350 HP (Replaces 6Y1-24306-55) is backordered and will ship as soon as it is back in stock.
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5/16 IN 6.5 FT Fuel Line with Primer Bulb – Fits Yamaha Outboard Mo...
5/16 IN 6.5 FT Fuel Line with Primer Bulb – Fits Yamaha Outboard Motors 4-350 HP (Replaces 6Y1-24306-55) is backordered and will ship as soon as it is back in stock.
Product Details
This 5/16 IN 6.5 FT Fuel Line with Primer Bulb – Fits Yamaha Outboard Motors 4-350 HP (Replaces 6Y1-24306-55) is designed for a wide range of Yamaha outboard engines from 4 HP to 350 HP, including both 2-stroke and 4-stroke models. It serves as a direct replacement for Yamaha outboards requiring a 5/16" (8mm) fuel line connection.
This assembly serves as a direct aftermarket replacement for Yamaha 6Y1-24306-55 and JLM Marine 5/16-IN-6.5FT-FL.
- Installation: Portable (connects tank to engine).
- Fuel Compatibility: Designed for gasoline and ethanol-blended fuels.
- Flow Indicator: Features a directional arrow for proper fuel flow from tank to engine.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6Y1-24306-55 |
| JLM Marine | 5/16-IN-6.5FT-FL |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, this fuel line fits most outboards from 4 HP to 350 HP that use a 5/16-inch (8mm) fuel connection.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | Portable Outboards | 4–25 | 2- & 4-Stroke | All years with 5/16" fuel connection | 6Y1-24306-55 | For engines using 8mm fuel tank connections |
| Yamaha | Mid-Range Outboards | 30–90 | 2- & 4-Stroke | All years with 5/16" fuel connection | 6Y1-24306-55 | For engines using 8mm fuel tank connections |
| Yamaha | High-Power Outboards | 115–350 | 2- & 4-Stroke | All years with 5/16" fuel connection | 6Y1-24306-55 | For engines using 8mm fuel tank connections |
Technical Specs
- Product Type
- Marine Fuel Line Assembly with Primer Bulb
- Installation
- Portable (connects tank to engine)
- Fuel Type
- Gasoline, Ethanol-blended fuels
- Connection
- Quick-connect fittings
- Housing Material
- Superior rubber, low-permeation material
- Housing Color
- Black
- Dimensions
- 6.5 ft (198 cm) length, 5/16" (8 mm) internal diameter
- Flow Direction
- Marked with directional arrow
- Fitting Type
- Snap-on connectors (tank and engine ends)
- Other Technical Attributes
- Features directional arrow indicator for proper fuel flow
What’s in the Box
- 1 x Fuel Line Assembly with Primer Bulb (6Y1-24306-55)
- 2 x Snap-on Connectors
Installation Notes
- Ensure the engine is off and in a well-ventilated area.
- Disconnect the old fuel line from both the engine and the fuel tank.
- Attach the new fuel line's engine-side connector to the motor's fuel inlet, ensuring a secure click.
- Attach the new line's tank-side connector to the fuel tank outlet.
- Confirm the fuel flow arrow on the primer bulb points from the tank towards the engine.
- Squeeze the primer bulb repeatedly until it feels firm, which indicates the line is filled with fuel.
- Before starting the engine, carefully inspect both connection points for any signs of leaks.
Troubleshooting & FAQ
How do I confirm this fuel line fits my specific Yamaha engine?
The primary factor is the connection size. This assembly is for Yamaha outboards that use a 5/16-inch (8mm) fuel line connection. While it covers a wide HP range (4–350 HP), always verify your engine's required fuel line diameter before purchasing.
Is this fuel line compatible with ethanol-blended fuels?
Yes, it is constructed from a modern, superior rubber material specifically designed to resist degradation from ethanol-blended gasoline (like E10), preventing cracks and leaks over time.
What are the signs that my fuel line needs replacement?
Common signs include visible cracks or brittleness in the hose, a persistent smell of fuel around the engine, the primer bulb feeling stiff or refusing to stay firm, or the engine sputtering and stalling from fuel starvation.
How do I use the primer bulb correctly?
Hold the bulb with the directional arrow pointing up (towards the engine). Squeeze and release it until it becomes firm. This purges air and draws fuel from the tank to the engine for easier starting.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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