DW420 420LPH In-Tank Fuel Pump. The DeatschWerks 9-421-1031 DW420 Series 420lph In-Tank Fuel Pump is engineered for high-performance BMW E36 and E46 applications. Series: DW420. The DW420's turbine impeller design promotes quiet operation, while its computer-balanced armature and carbon commutators enhance durability and performance.
