Product Code: 476V Price: Check Latest 476V - Replacement Remote for Viper 600HF, PC600HF VIPER Model PC 500 HF   Part#439V   Date Code 7J-UP Model 550 HF   Part#553V  Date Code 8D-9A Model 550 ESP   Part#553V   Date Code 9B-UP Model 600 HF   Part#448V  Date Code 8B-8L Model PC 600HF(ESP)Part#449V  Date Code 9A-UP Model PC 800 SHF   Part#381V  Date Code 8B-8F Model 800 SHF ESP   Part#381V   Date Code 8G-UP   Your DATE CODE is IMPORTANT.  It can usually be found stamped on your main control unit.  If you don't know where your main control unit is installed, or how to read your date code, check with a professional installer before ordering a replacement transmitter.     We carry ALL the remotes for Directed Electronics systems, including:  Automate Avital  Boa   Clifford Hornet  Pro Guard  Python  Rattler  Sidewinder  Steal Stopper Stinger  Valet  Viper Wasp Replacement REMOTES How Can I Determine the Proper Replacement