YAMAKATO 1/4-inch NBR Braided Fuel Hose SAE J30R7 — 9.5 ft, Nylon Reinforced, 10 Clamps

This SAE J30R7-rated hose combines nitrile butadiene rubber (NBR) inner tubing with embedded braided nylon reinforcement to deliver a flexible, fuel-resistant line for automotive and small-engine low-pressure fuel and emissions applications. Sized for a 1/4-inch (6.3 mm) inner diameter and a 1/2-inch (12.7 mm) outer diameter, the 9.5-foot length and included clamps make it a ready-to-install option for repairs, retrofits, and custom routing.

What vehicles and machines is this hose suitable for?

The YAMAKATO SAE J30R7 hose is designed for a wide range of automobiles and small engines. It fits many manufacturers' fuel, PCV, and return lines and is commonly used on lawn and garden equipment as well as powersports machines.

• Autos: carburetor lines, fuel return loops, PCV and emissions plumbing
• Small engines: lawn mowers, tillers, snow blowers, generators
• Powersports: motorcycles, ATVs, mini bikes, pit bikes, go-karts
• Brands commonly compatible: Honda, Kawasaki, Kohler, Briggs & Stratton, Yamaha, John Deere, Tecumseh, Cub Cadet, MTD, Toro

How durable and temperature-resistant is the YAMAKATO SAE J30R7 hose?

This hose is built for everyday engine-bay conditions: the NBR compound resists swelling and softening from common fuels while the braided nylon reinforcement boosts kink resistance and dimensional stability. It operates across a broad temperature span for seasonal use and typical ambient extremes.

• Operating temperature range: -40°F to 257°F (-40°C to 125°C)
• Working pressure: 60 psi; burst pressure: 249 psi
• Braided nylon layer for improved flex, abrasion resistance, and shape retention
• Stable for low-pressure fuel system routing and vibrations

Will this hose handle ethanol, biodiesel, diesel and other fuel blends?

The nitrile (NBR) inner tube is formulated to tolerate a variety of conventional and blended fuels without rapid degradation, making it appropriate for many modern fueling environments. Still, it’s intended for low-pressure lines—avoid use in high-pressure fuel-injection circuits.

• Compatible with leaded and unleaded gasoline
• Resistant to gasoline with ethanol blends (E-10 and E85) and biodiesel
• Suitable for diesel and sour gas exposure at low pressure
• Not designed for high-pressure direct injection fuel rails

How should I size and install this hose for my project?

Sizing starts with the inner diameter: this hose is 1/4 inch (6.3 mm) ID, so match fittings and barbs to that dimension for a leak-free connection. The included 10 hose clamps let you secure multiple connections across the 9.5-foot length, and cutting to length is straightforward with a sharp hose cutter or utility knife.

• Confirm barbs/fittings are 1/4" ID-compatible for snug fit
• Trim hose squarely and slide clamps over hose before installing
• Tighten clamps evenly to avoid distortion and leaks
• Replace hose if you see cracking, excessive softening, or swelling

Who is this for: mechanics, DIY car restorers, small-engine technicians and landscapers who need a dependable replacement for low-pressure fuel, PCV, and emissions tubing will appreciate the YAMAKATO SAE J30R7 hose. It’s a practical kit for anyone fitting fuel lines on cars, ATVs, mowers, generators and other gasoline- or diesel-powered equipment that accepts a 1/4" ID hose and requires chemical resistance, temperature tolerance, and flexibility.