The JCB 400A7945 Urea Back Flow Hose SV is a genuine OEM component designed for JCB agricultural and construction machinery. This hose is crucial for the efficient operation of the Selective Catalytic Reduction (SCR) system, facilitating the back flow of urea (Diesel Exhaust Fluid - DEF). It ensures optimal performance and compliance with emission standards by maintaining the integrity of the DEF delivery system. Manufactured to JCB's rigorous specifications, this part guarantees durability and a precise fit.