Feature 1、Applicable Model: The master battery disconnect is for replacement for DPST kill cut off nhra nascar ON OFF. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2、OE Number: The part numbers for reference are 51-904, 51-304. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、Sturdy Material: Made of high strength material, this 4 post master battery disconnect is sturdy and robust, oxidation proof, erosion proof and wear proof, capable of working normally in various harsh environments. 4、Efficient Use: The battery disconnect is easy to operate for quick disconnection or connection of battery power, enhancing user convenience. It can cut off the battery power efficiently to avoid short circuit and extend battery life. 5、Easy Installation: The battery power cut isolator kill features simple and convenient installation without hassle, no complex tool or special steps required, saving your time and effort. Item Type: Master Battery Disconnect Kit OE Number: 51-904, 51-304 Working Voltage: DC12V-24V Maximum Current: 200A Fitment: Replacement for DPST Kill Cut Off Nhra Nascar ON OFF Package List 1 x Master Battery Disconnect Kit (11Pcs Accessory) Note 1. Please double check the part number of your item, matching information is for reference only. 2. Installation by a professional mechanic is strongly recommended.