BENET Replacement for Corvette C3 1978-1982 Speedometer and Tachometer Printed Circuit Board 606755 1. BENET rebuild this GM discontinued 1978-1982 Corvette Speedometer and Tachometer Circuit Board with thicker copper circuit paths and bulb contact points. Easy to install, plug-in and play. 2. This is for a new, unused, O.E.M- quality aftermarket replacement circuit board. Compatible with Chevy 1978-1982 Corvette C3 L-48 L-82 Indy-500 Pace Car Speedo Tach Gauges Dash Cluster Printed Circuit Board GM 25023577. 3. Replacing circuit board will restore power supply to the light bulbs, warning lights, in the instrument cluster of your Corvette. 4. Some reference OEM numbers: 251018741, 25023577, 25066, 393126, D-515, 606755. 5. Some reference head VIN numbers 1Z37L7S4, 1Z87L8S4, 1Z87L8S9, 1Z8789S4, 1Z878AS4, 1G1AY8764BS4, 1G1AY8764B5, 1G1AY8780C5.