Door handles, hinges, latches, locks, and keys for heavy duty trucks ensure proper door function and security. These parts are designed to handle the heavy-duty demands of commercial trucks, allowing smooth operation for opening, closing, and securing the door. Door handles and hinges ensure ease of use, while latches and locks keep the cab secure during transport. The keys and locking mechanisms are tailored to provide reliable access control, ensuring the safety and integrity of the vehicle’s cab under various operating conditions.