Fuel Line Assembly with Primer Bulb – Fits Yamaha Outboards 4-350 HP (Replaces 6Y1-24306-55)
Fuel Line Assembly with Primer Bulb – Fits Yamaha Outboards 4-350 HP (Replaces 6Y1-24306-55) is backordered and will ship as soon as it is back in stock.
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Fuel Line Assembly with Primer Bulb – Fits Yamaha Outboards 4-350 H...
Fuel Line Assembly with Primer Bulb – Fits Yamaha Outboards 4-350 HP (Replaces 6Y1-24306-55) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Fuel Line Assembly with Primer Bulb is designed for a broad range of Yamaha 4–350 HP outboard engines, including both 2-stroke and 4-stroke models. It provides a reliable fuel connection from either a portable or remote fuel tank to the engine, ensuring consistent fuel delivery for optimal performance.
It serves as a direct interchange for Yamaha part numbers 6Y1-24306-55, 61J-24306-04-00, 6Y2-24306-56, 6YK-24306-64, 6YL-24306-68, and 6Y2-24306-A2.
- Designed for external, tank-to-engine connection.
- Constructed from flexible, alcohol-enhanced, and UV/ozone-resistant rubber hose.
- Includes pre-installed marine outboard standard connectors for a secure fit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6Y1-24306-55 |
| Yamaha | 61J-24306-04-00 |
| Yamaha | 6Y2-24306-56 |
| Yamaha | 6YK-24306-64 |
| Yamaha | 6YL-24306-68 |
| Yamaha | 6Y2-24306-A2 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This fuel line assembly is compatible with a wide array of Yamaha outboard models, covering virtually all horsepower ratings from 4 HP up to 350 HP.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | Various Outboard Models | 4 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 5 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 6 | 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 8 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 9.9 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 15 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 20-30 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 40-60 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 70-90 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 100-150 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 175-200 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 225-250 | 2-Stroke & 4-Stroke | 6Y1-24306-55 | |
| Yamaha | Various Outboard Models | 275-350 | 4-Stroke | 6Y1-24306-55 |
Technical Specs
- Product Type
- Outboard Fuel Line Assembly with Primer Bulb
- Installation
- External, tank-to-engine connection
- Fuel Type
- Compatible with ethanol-blended fuels (up to 10%)
- Housing Material
- Flexible rubber with UV/ozone resistance
- Housing Color
- Black
- Dimensions
- 6.5 ft (1.98 m) length, 5/16" (8mm) inner diameter
- Weight
- 0.49 kg (1.08 lbs)
- Fitting Type
- Marine outboard standard connectors
- Warranty
- 1-year against manufacturing defects (aftermarket version)
What’s in the Box
- 1 x Fuel Line Assembly with Primer Bulb and Connectors
Installation Notes
- Ensure the engine is turned off and cool. Work in a well-ventilated area away from any open flames or sparks.
- Disconnect the old fuel line from both the fuel tank and the outboard engine by releasing the connectors.
- 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).
- Firmly click the connectors onto the corresponding fittings on the engine and the fuel tank.
- Squeeze the primer bulb repeatedly until it feels firm, which indicates that the fuel line is filled with fuel.
- Before starting the engine, carefully inspect the entire line and all connection points for any signs of fuel leakage.
Troubleshooting & FAQ
How do I know if my fuel line needs replacing?
Common signs of a failing fuel line include visible cracks, kinks, brittleness, or hardening of the hose. You may also notice fuel leaks, a persistent smell of gasoline, a primer bulb that collapses and won't regain its shape, or engine performance issues like stalling or sputtering under load.
Will this fit my specific Yamaha F150 model year?
This assembly is designed for broad compatibility with Yamaha outboards from 4 to 350 HP, which includes the F150. As it replaces OEM part 6Y1-24306-55 and its equivalents, it should fit. However, always verify that the connectors and hose diameter (5/16") match your existing part before installation.
Is this fuel line resistant to modern ethanol-blended fuels?
Yes, this fuel line assembly is manufactured with alcohol-enhanced materials and is fully compatible with modern gasoline containing up to 10% ethanol (E10).
The primer bulb won't get firm. What should I check?
If the primer bulb remains soft, it usually points to an air leak in the system. Check that both connectors are securely snapped onto the tank and engine fittings. Also, verify the arrow on the primer bulb is pointing in the direction of fuel flow (towards the engine). If the issue persists, there could be a faulty check valve in the bulb itself.
What is the recommended replacement interval for a fuel line?
As a general maintenance guideline, outboard fuel lines should be inspected annually and replaced every 2-3 years, or immediately if any signs of wear, damage, or degradation are found. Environmental factors like sun exposure and saltwater can accelerate aging.
Is there a difference in quality between OEM and this aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to meet or exceed OEM-level specifications using comparable high-quality, fuel-resistant materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected to ensure dimensional accuracy and performance consistency.
What are the shipping speed & costs?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free for most regions. Expedited shipping options, if available for your location, will be presented at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchasing. If anything differs—even if your model appears on a compatibility list—do not purchase.
- This is an aftermarket replacement component, not an Original Equipment Manufacturer (OEM) part.
- Professional installation is highly recommended for safety and to ensure proper performance. Handling fuel systems carries inherent risks.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with typical transit times of 5–15 days.
- Manufacturer-Direct Value — By working directly with our manufacturing partners, we provide fair pricing without compromising on materials or quality control.
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