The XDP HD Grid Heater Relay Fusible Link Wire XD444 (For Dual Relay) (Different-Length) is designed as a replacement for Dodge 5.9L diesel trucks equipped with dual grid heater relays that use the different-length wiring. This heavy-duty wire restores proper power delivery to the grid heater system, helping ensure reliable cold starts and correct grid heater operation. Designed to match factory routing and function, this wire includes an integrated fuse link for protection and is built from 8-gauge wire to handle the high current demands of the grid heater system. Features and Benefits: Direct-Fit ReplacementDifferent-Length Wire ConfigurationFor Trucks With Dual Grid Heater RelaysHeavy-Duty 8-Gauge Wire ConstructionIntegrated Fuse Link For Circuit ProtectionDirect Replacement Battery-To-Relay Grid Heater WireRestores Proper Power Delivery To The Grid Heater SystemIdeal For Repairing Damaged, Corroded, Or Overheated Factory WiringFor trucks with dual grid heater relays and different-length wire configuration.Fitment Notes: Some applications use two grid heater relay wires of different lengths, while others use the same length for both.Be sure to verify your vehicle's configuration before ordering to ensure proper fit. Details: