BS6 Urea Pump / DEF Pump Motor for Ashok Leyland Dost, Bada Dost, Saathi, Partner & MiTR bs6 Series High-quality BS6 Urea Pump (DEF Pump Motor) suitable for Ashok Leyland diesel vehicles including Dost, Dost Plus, Bada Dost, Saathi, Partner Trucks, and MiTR Buses. Ensures proper DEF dosing in SCR system for reduced NOx emissions and smooth BS6 compliance.