Corrugated Nylon In-Tank Fuel Hose Our corrugated nylon fuel hoses are engineered for in-tank fuel pump installations where flexibility, chemical resistance, and long-term durability are critical. The corrugated design prevents kinking, making it easy to route hoses through tight spaces inside modern fuel pump modules and tanks. Size and Fitment Options 8 mm ID Fits 5/16 inch barbs (7.9–8.0 mm) and 3/8 inch barbs (9.5 mm) On larger barbs the hose requires heat or an install tool to fit correctly Recommended for use on Walbro 450 style pumps where the outlet barb is sized for 8 mm hose 9 mm ID Fits 3/8 inch barbs (9.5 mm) by hand installation without heating or special tools Because the fit is looser than the 8 mm hose, the line should be secured with a clamp Also compatible with slightly smaller barbs (around 8.92 mm), though clamping is always advised Lengths available: 150 mm and 250 mm for both sizes 9 mm x 1000 mm Corrugated Saddle Tank Fuel Hose Cross-Tank Option: 9 mm × 1000 mm version for saddle-style tanks (e.g., BMW and other dual-module systems) Not available in 8mm Fuel Compatibility Made from PA11 (Nylon 11), known for low permeation and high resistance to gasoline, ethanol, and E85 Installation Benefits Corrugated design allows tight bends and prevents collapse under suction Works with both 5/16 and 3/8 fuel barbs depending on size selection Reliable replacement for aging OEM lines and ideal when installing high-flow pumps like Walbro 450/525/535
