Fitment: Compatible with Right For:, [Mercedes-Benz] 2006-2009 E350, 2003-2005 E320 3.2L 3199cc, 2003-2006 E500, 2006 CLS500. Reference Number: SP5029M, USEP8530M, FG0979, 5472170, 2114704194, P76500M, 1521014, F4541A, 2114701494, 4010401, DFG0979, 2114702994, 2920577, M2520946, 12333019076, TNKSP5029M, B18111599TG, C0576M. Related Parts: ① Fuel Pump, ② Strainer, ③ Seal Ring. 20% Improved Fuel Delivery Efficiency: The commutator is made of carbon material, achieving an all-round performance leap compared with traditional copper commutators; it features superior electrical performance, shorter arc duration, stable current transmission, reduced motor energy consumption, and enhanced fuel delivery efficiency. Superior Durability: The contacts are made of gold-palladium alloy with a melting point of up to 1450℃, featuring stable electrical conductivity, excellent corrosion resistance and wear resistance, and can achieve 1 million contact cycles without obvious damage.