FKM Rubber Reinforced Fuel Hose Unleaded Petrol Diesel Oil Line Fuel Pipe 2~38mm

Measure the outer diameter of the barb or fitting the hose will slide onto — this should match the hose's inner diameter (ID) for a snug, leak-free fit. The outer diameter (OD) determines how much clearance you need in the routing path. If you are replacing an existing hose, measure the old hose's ID directly or check the fitting size stamped on the original part.

Yes. FKM (fluoroelastomer) rubber has strong resistance to aromatic hydrocarbons including unleaded petrol and diesel fuel. It resists swelling and permeation better than standard NBR or EPDM rubber in fuel service. It is also suitable for mineral oil. It is not recommended for brake fluid, coolant, or ketone-based solvents.

This tubing is supplied as smooth-bore rubber without a specified pressure rating. It is suited to low-pressure gravity-feed and carburettor-style fuel systems typical of motorcycles, small engines, and garden machinery. For high-pressure fuel injection systems (above approximately 3–5 bar), a reinforced, pressure-rated hose with a published burst pressure specification is recommended. Contact us to confirm suitability for your specific pressure requirement.

Measure the existing hose run end-to-end and add 10–15% for routing curves and trimming allowance. For most motorcycle tank-to-carburettor runs, 1 m is sufficient. For longer runs on agricultural or marine equipment, 3 m or 5 m cuts reduce the number of joins. The 10 m option is cost-effective when replacing multiple lines or stocking workshop spares.

Use a sharp utility knife or hose cutter — not scissors — to make a single perpendicular cut. A clean, square end seats fully against the barb shoulder and allows a hose clamp to compress evenly. Angled or ragged cuts create gaps that can weep under fuel pressure. Mark the cut line with a wrap of masking tape to guide a straight cut.

Yes. The hose clamp must span the OD of the hose when seated on the barb. Thicker-walled hoses (2.5–3.5 mm) have a larger OD relative to the barb, so select a worm-drive or spring clamp rated for the assembled OD. Tighten only until the hose deforms slightly around the barb — over-tightening a thin-walled hose can cut through the rubber and cause a leak.

FKM rubber has good UV and ozone resistance compared to standard rubber compounds, making it a reasonable choice for exposed engine-bay or outdoor routing. For fully submerged or salt-spray environments, verify that any fittings and clamps used are also corrosion-resistant. The black colour helps reduce UV degradation on exposed runs.