Part number: 9164083, 03W83, 100024. Model number: John Deere 450LC, JD450LC. Full name, correct Telephone Number and detailed Physical Address (home or office address) but not PO Box/APO/FPO address are necessary. Maintenance service: repairing for monitor, ECU computer and hydraulic pump; monitor hours resetting, etc. We offer 1 year(controller and monitor), 6 months(A/C controller and throttle motor) or 3 months(other parts). 3-7 days evaluation and investigation takes after receiving your return item. Your satisfaction is our goal, please leave 5 star feedback. Much appreciation in advance.