Choosing the right 50 mm fuel hose can improve fuel delivery, reduce leaks, and support consistent engine performance. This guide highlights five top options, covering a range of sizes, materials, and compatibility for motorcycles, ATVs, go-karts, and small engines. Each product section provides key specs, ideal uses, and what to look for when selecting a hose. A concise buying guide follows to help you compare features and make an informed choice.
| Product | Size (ID x OD) | ||
|---|---|---|---|
| Fuel Line 1/2 Inch ID | 1/2″ x 0.78″ | 5 ft | NBR with polyester, two-layer construction |
| 3/8 Inch ID Fuel Line Hose | 3/8″ x 2/3″ | 10 ft | NBR, high temperature resistance, 300 PSI working |
| Dirt Bike Gas Fuel Line | 5 mm ID | 39.3 in | Fits multiple small engines, includes filters and clips |
| Glarks 50mm Fuel Line Clamps | 50 mm | – | Set of clamps; zinc-plated steel, rust resistant |
| QuQuyi PVC Flexible Tubing | 50 mm ID | 1.3 ft | Clear PVC, high rigidity, 60 psi max, 120 psi burst |
Fuel Line 1/2 Inch ID Hose for 50mm Applications
The Fuel Line 1/2 Inch ID is built for durability with an internal diameter of 1/2″ (12 mm) and outer diameter of 0.78″ (20 mm), extending to 5 feet. Constructed from NBR with a polyester fiber layer, it combines oil resistance with wear resistance for longer service life. The two-layer NBR rubber design enhances durability under varying temperatures and pressures common in automotive and small-engine fuel systems. This hose is suitable for standard fuel lines in motorcycles, ATVs, and small-ratio engines that require a robust, flexible yet strong line. While it offers solid resistance to fuel exposure, verify compatibility with your specific fuel type and pressure requirements before installation.
3/8 Inch ID Fuel Line Hose for High-Pressure Systems
The 3/8 Inch ID Fuel Line Hose measures 3/8″ (10 mm) ID and 2/3″ (17 mm) OD with a 10-foot length. It’s designed for high-pressure automotive fuel systems, delivering a working pressure of up to 300 PSI and a burst pressure near 1160 PSI. Made from premium NBR material, this hose emphasizes long service life, wear resistance, and high-temperature tolerance. It’s a strong option for racers and vehicles requiring dependable fuel delivery under demanding conditions. Ensure compatibility with your fuel type and engine tolerances, especially in performance or racing setups.
Dirt Bike Gas Fuel Line With Filter Kit
This kit is tailored for 50cc to 250cc engines and various ATVs, pocket bikes, and scooters. It features a 39.3-inch (1000 mm) fuel line with an inner diameter of 5 mm (0.19″) and an outer diameter of 8 mm (0.31″). Included are 4 fuel filters and 8 spring clips to secure connections and prevent leaks. The fitment covers popular Chinese ATV and scooter platforms (Taotao, Coolster, Apollo, Roketa, SSR, Lifan, etc.). This option is practical when installing new lines or replacing worn hoses while ensuring a complete kit for reliable fuel delivery in compact engines.
Glarks 50mm Fuel Line Clamps Set
The Glarks clamp set includes 20 pieces designed for hoses with a 50 mm diameter. These clamps use 65Mn spring steel with zinc plating to resist corrosion in wet environments, offering reliable sealing to prevent liquid loss. The smooth, burr-free surfaces protect hoses during clamping, making them a practical upgrade for larger-diameter hoses on motorcycles, ATVs, and some boats or small engines. While they excel in durability and fit, confirm the hose outer diameter and clamp range to ensure a secure, leak-free connection for your specific setup.
QuQuyi 50 Mm ID Heavy-Duty PVC Tubing
The QuQuyi PVC tubing offers a 50 mm ID (2 inches) with a 2-1/4 inch OD (58 mm) and a length of 1.3 feet. Made from clear polyester vinyl chloride, it’s designed for oil, fuel, water, and air lines, with a hardness around 73A. It provides a maximum working pressure of 60 psi and a bursting pressure of 120 psi, with a temperature range of 25°F to 150°F (-4°C to 66°C). This option is suited for flexible, transparent fuel lines and inspection-friendly runs where visibility and chemical resistance are beneficial. Consider its rigidity and pressure limits when choosing for high-flow or high-vacuum applications in performance builds.
Buying Guide: Key Factors To Consider
- Fuel compatibility: Verify fuel type compatibility (gasoline, ethanol blends, methanol, etc.). Some hoses are optimized for specific fuels and may degrade with certain additives.
- Size and fit: Measure the inside diameter (ID) and outside diameter (OD) of your fuel fittings and ensure the hose clamps or clamps you choose accommodate the hose outer diameter.
- Pressure rating: For performance engines or high-flow systems, choose hoses with higher working and burst pressure ratings to reduce the risk of rupture under load.
- Material and durability: NBR-based hoses offer good oil resistance and temperature tolerance; PVC variants can provide visibility but may have tighter pressure limits. Consider layering, wall thickness, and reinforcement for long life.
- Temperature range: Engine environments vary from sub-freezing to high heat. Ensure the hose maintains integrity across the expected temperature range.
- Clamps and fittings: Large-diameter hoses may require clamps with corrosion resistance and smooth interiors to avoid hose damage. Access to spring clips or quick-release fittings can affect installation ease.
- Included accessories: Some kits include filters, clamps, and clips which can simplify installation and improve system reliability.
- Application scope: For dirt bikes, ATVs, go-karts, and small engines, ensure the hose length is sufficient and that any included filters or attachments match your engine setup.
- Maintenance and inspection: Regularly inspect hoses for cracks, swelling, or leaks, especially at connection points. Replace worn segments promptly to prevent fuel leaks or engine trouble.
- Regulatory and safety considerations: Use hoses designed to meet automotive standards and ensure proper routing away from heat sources or moving parts.
In selecting a 50 mm fuel hose, balance durability, compatibility, and cost with your engine’s requirements. The options listed cover common needs—from high-pressure fuel lines suitable for performance applications to readily installed kits for dirt bikes and ATVs—each offering specific advantages based on material, construction, and accessories. Always follow manufacturer installation guidelines and local regulations when routing hoses and securing clamps.