AutoMeter Carbon Fiber Series 5" Tachometer w/ Shift Light - 4899 Speedometer is compatible with most OEM, aftermarket, and GPS vehicle speed sensors. Auto Meter Tach Speedo Gauge AutoMeter 4878 Carbon FiberTach/Speedo Combo Auto Meter Tach Speedo Combo Save space on your dash and provide a clean look with AutoMeter’s Electronic Tach/Speedo Combo. GA 5 RPM/SPD PH Part Number: 4878. 5" Tach/Speedo Gauge - 160mph/8K RPM, Elec. Program., Carbon Fiber. Excludes: Alaska/Hawaii, US Protectorates, APO/FPO, PO Box. IMPORTANT NOTICE TO FREIGHT ORDERS. We would love to hear from you Gauge kit includes bulb and socket assembly, red and green bulb covers, mounting hardware, and installation instructions Taking the highly precise circuits from the individual speedometer and tach and combining them into one unit gives you the accuracy and the response time you need and the convenience of a one piece solution.