Ford Transit Custom Locks 4 Vans (L4V) External Shields / Repair PlatesL4V External shields reduce the risk of bodywork punctures that give access to internal lock mechanisms and door latches. Our external shields are vehicle and door specific and so the products we supply vary depending on the make and model of your vehicle. Please also view our internal latch shields here. For maximum security consider using both internal and external. Key features Vehicle specific external shields The shield acts as a visual deterrent