Marine Fuel Line Assembly with Primer Bulb 3/8" × 6FT – Fits Outboard Motors, RVs, Tractors
This is a universal marine fuel line assembly, featuring a 3/8" (10mm) inner diameter hose and a total length of 6 feet. It is designed for broad compatibility with Yamaha outboards, as well as various boats, RVs, tractors, and other small engines that require a 3/8" fuel line with a primer bulb.
This assembly serves as a direct replacement for Yamaha part number 6Y2-24306-05-00 and Moeller part number 034394-10LPA.
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Fuel Compatibility: Safe for use with gasoline, including ethanol-blended fuels (EPA/CARB compliant).
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Universal Installation: Connects between the fuel tank and the engine (engine/tank fittings are not included).
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Complete Kit: Includes the 6-foot hose assembly with primer bulb and two stainless steel hose clamps for a secure fit.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Yamaha |
6Y2-24306-05-00 |
| Moeller |
034394-10LPA |
Compatible Engine Models
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.
| Brand |
Model |
Rated HP |
Stroke |
OEM Part No. |
Notes |
| Yamaha |
Outboards |
Various |
Both 2 & 4-Stroke |
6Y2-24306-05-00 |
Requires 3/8" fuel line |
Technical Specifications
| Specification |
Value |
| Product Type |
Fuel Line Assembly with Primer Bulb |
| Installation |
Universal; connects between fuel tank and engine |
| Fuel Type |
Gasoline (including ethanol blends) |
| Connection |
3/8" (10mm) inner diameter hose |
| Housing Material |
Nylon-braided rubber with stainless steel clamps |
| Housing Color |
Black |
| Dimensions |
72" (183 cm) length; 0.625" (16mm) outer diameter |
| Weight |
0.36 kg (0.8 lb) |
| Fitting Type |
Universal (engine/tank fittings not included) |
| Warranty |
1 year (Five Oceans brand) |
| Other Technical Attributes |
EPA/CARB low permeation compliant; includes check valves in primer bulb |
Package Contents
- 1 × Fuel Line Assembly with Primer Bulb (6 feet long)
- 2 × Stainless Steel Hose Clamps
Installation Guide
- Ensure the engine is off and cool. Place a drip pan or absorbent rags under the connection points to catch any spilled fuel.
- Disconnect the old fuel line from the engine and the fuel tank. Be prepared for a small amount of fuel leakage.
- Attach the new fuel aine assembly. The arrow on the primer bulb should point in the direction of fuel flow (from the tank to the engine).
- Secure the hose to the fuel tank and engine fittings using the provided stainless steel clamps. Ensure clamps are tight but do not overtighten.
- Squeeze the primer bulb until it feels firm to draw fuel from the tank and fill the line.
- Check all connections for any signs of leaks. Address any leaks immediately.
- Start the engine and allow it to run for a few minutes while continuing to inspect for leaks.
Troubleshooting & FAQ
Q: How do I confirm this fits my engine?
A: This is a universal fuel line for applications requiring a 3/8" (10mm) inner diameter hose. It is a direct cross-reference for Yamaha part 6Y2-24306-05-00. Always measure your existing fuel line's inner diameter and check your engine's part manual to confirm compatibility.
Q: My primer bulb won't get firm or the engine is stalling. What's wrong?
A: First, ensure the arrow on the primer bulb is pointing in the direction of fuel flow (towards the engine). An incorrect orientation will prevent fuel from being pumped. Second, check for air leaks at the connection points; ensure clamps are tight. A cracked or old fuel tank pickup tube can also introduce air into the system.
Q: How often should I replace my marine fuel line?
A: Fuel lines should be inspected regularly for signs of cracking, stiffness, brittleness, or swelling. As a general guideline, consider replacing fuel lines every 2-5 years, depending on usage, exposure to sunlight, and fuel type (ethanol blends may accelerate wear).
Q: What is the difference between this part and an OEM part?
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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.