Search new + high quality used 245 40 R18 Dunlop tires online, starting at: $71.17. 245 40R18 Dunlop models in stock: 7. All season: 1. Winter: 5. Summer: 8. Run flat: 1. Selling all used tires at discount costs. All used tires go through 2 layers of inspection on specialized equipment. One year warranty + free shipping on all inventory ;) Happy shopping!