E2NN3A540BA. Replaces E4NN3A540AA Fits both LH & RH Sides Fits Ford 600, 800, 601, 801, 2000-4000 4 CYLINDER, 2000, 3000, 4000SU, 2600, 3600, 4600SU, 2310, 2610, 2810, 2910, 3610, 3910, 4610, 231, 335, 531