OTTO Excavator Spare Parts Zx330 6Hk1 Relay Preheat 1825503250 182550-3250 1-82550325-0 For Isuzu This OTTO Excavator Spare Parts Zx330 6Hk1 Relay Preheat (Part number: 1825503250) serves as a critical component in Isuzu engines, aiding in the preheating process for enhanced performance