RPN: 473V Viper 3-button Replacement Remote Remote Compatibility: System Model Number System Part Number Date Code If you see "All" in the Date Code column then the remote will work with any versions of the corresponding system. Most newer systems have the "All" designation. If you see a value (such as 8D-9A), then the remote will only work with a subset of the system produced during a certain time period. This is only the case for some older systems. If you have one of these older systems, here is how to find the date code: 100 HF (ESP) 410V 8G - up 130 HV 561V All 150 ESP 552V 9C - 0H 150 ESP 552V 0I - up 160 XV 562V All 210 HV 416V All 211HV 412V All 300 HF 430V 8B - 9A PC 300 HF (ESP) 429V All 300+ HF 432V 8B - 9B 330V 427V All 350 HV 426V All 500 HF 438V 8B - up PC 500 HF (ESP) 439V 7J - up 550 HF 553V 8D - 9A 550 HF (ESP) 553V 9B - up 560 XV 563V All 571 XV 572V 4G - 5G 571 XV 572V 6K - up 600 HF 448V 8B - 8L PC 600HF (ESP) 449V 9A - up 650 XV 436V All 671 XV 437V All 700 ESP 379V All 771 XV 567V 4E - 4L 771 XV 567V 5A - 7J PC 800 SHF 381V 8B - 8F 800 SHF ESP 381V 8G - UP 850XV 446V All 1000 3101V All 1002 3102V All 3000 3201V All 3002 3202V All 5000 3301V All 5002 3302V All 7900 5501V All