Feature:1. Applicable Model: The starter switch is replacement for Caterpillar PS 150C PS 500 SR4. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return.2. OE Number: The part number for reference is 9W1077. Please confirm whether it is consistent with the OE you need before buying to avoid unnecessary return.3. Engine Protection: The heat start switch can turn on the heat source before the engine is at a cold temperature, avoiding engine damage and ensuring a safe driving.4. Ideal Replacement: The ignition switch is a perfect replacement for repairing and refit, can directly replace the old and broken accessory, convenient and time saving, ensuring the normal operation of your car.5. Durable Material: The ignition start switch is made of premium material, stable and durable, wear resistant and anti rust, having a long service time.Specification:Item Type: Heat Start SwitchOE: 9W1077Discription: The heat start switch is an ignition switch that turns on the heat source before the engine is exposed to cold temperatures..Fitment: Replacement For Caterpillar 140 143 27 3114 3116 3126 3176B 3176C 3196 32 3208 3300 3304 3304B 3306B 3406B 3406C 3406E 3408 3408A 3408B 3408C 3408E 3412 3412C 3412D 3412E 3456 3500 4A 571G 572G 631D 633D 637D 637DPP 639D 6A 6S 953 953LGP 963LGP C11 C12 C15 C16 C18 C9 Check CX31 CX31C15I CX31C9I CX31P600 CX35 CX35P800 D25C D30C D330C D333C D350C D35C D35HP D379 D379A D379B D398 D398A D399 D400 D4E D4ESA D4ESR D5B D5E D6D D6DSR D6E D6ESR D6ESR2000 D7G D9R D9RLRC DB G3406 G3408 G3412 G342C G379 G379A G398 G399 PS150C PS500 R1700II R1700IILHD R2900 SR4 TH31 TH31C9I TH31C9P TH31E61 TH35 TH35C15I4, TH31, TH31C9I, TH31C9P, TH31E61, TH35, TH35C15IPackage List:1 x Heat Start SwitchNote: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!