Both ends required due to limited clearance between fuel line connecter end and fuel rail. 5/16″ x 3/8″. Flexible plastic design. Durable build. Plastic Design.

Features and Benefits: Both ends required due to limited clearance between fuel line connecter end and fuel rail.; Services Transit 2.0L, 3.5 GTDI, 6.2L Boss engines.; 5/16″ x 3/8″; Plastic Design; Durable build; Both ends required due to limited clearance between fuel line connecter end and fuel rail. Services Transit 2.0L, 3.5 GTDI, 6.2L Boss engines. 5/16″ x 3/8″. Flexible plastic design.