This is an Isuzu 4HK1 ECM. OEM Part#: 8973812450,8973750190, 8980008780, 8980008800, 8980701281. They will fit 2005-07 Isuzu NPR, NQR and GMC W3, W4, W3500, W4500. Call for pricing and availability at 1-877-564-6307 Press 1.  If you have any further questions speak with our sales team. 05-13-16
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