Gates hose and connectors meet or exceed SAE specifications for heavy-duty applications, especially truck engines subjected to high heat and high pressure. All Gates hoses are manufactured using True-Bore technology, rather than the standard 100R5 requirement to insure exact specifications in matching hose and couplings. Gates also offers a variety of coupling products that provide tight and leak-free port-to-port connections. Most are available with Gates TuffCoat™ plating for corrosion protection.