One New Aftermarket Replacement Ammeter Gauge that fits Case Tractor Models: 310C, 310D, 310E, 310F, 310G, 450 (Crawler) ], [ 420C, C, CC, CC-3, CC-4, CCS, CH, CI, CO, D, DC, DC-3, DC-4, DCS, DEX, DH, DI, DO, DV, L, LA, LAH, LAI, LI, RC, S, SC, SC-3, SC-4, SI, SO, Super 400, V, VA, VAC, VAC-11, VAC-12, VAC-13, VAC-14, VAE, VAH, VAI, VAIW, VAIW-3, VAO, VAO-15, VAS, VC, VI, VO, W10B, W7C, W9, W9B, 400, 401, 402, 403, 405, 410, 411, 412, 413, 414, 415, 420, 425, 500, 520, 600, 610, 620, 1000 (When Converted To 12 Volt Alternator System) ], 310 (Crawler, When Converted To 12 Volt Alternator System)