Feature: 1. OE Number: The part number for reference is 7Y3918. Please confirm whether it is consistent with the OE you need before placing an order. In this connection, you can reduce unnecessary trouble. 2. Fitment: Replacement for Caterpillar Cat 307 307B 307C 308C 311 311C 312 312BL 313B 314C 315 315BL 317 317BLN 318B 320 E320 320B 320L 320N 321C 325C Excavator. Please confirm whether it is consistent with your model beforehand. 3. High Durability: This product is made of aluminum alloy material, which is durable and has strong impact and scratch resistance, as well as moisture and corrosion resistance. 4. Easy Installation: The starter ignition switch has been designed through comprehensive transposition thinking, and is easy to install. It can be completed in a few minutes under the guidance of the manual. 5. High Performance: The ignition switch of the starter has been carefully processed to prevent damage to the ignition switch or poor wiring, ensuring a desired customer experience. Specification: Item Type: Starter Ignition SwitchOE:7Y3918Fitment: Replacement for Caterpillar Cat 307 307B 307C 308C 311 311C 312 312BL 313B 314C 315 315BL 317 317BLN 318B 318BL 320 E70B E320 320B 320L 320N 321C 325C Excavators. Package List: 1 x Ignition Switch2 x Key Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks