One new 36″ chrome replacement double wall exhaust pipe (with bend) for John Deere diesel tractor models: 3010 (serial number 6644 and up), 3020 (up to serial number 122999), 4010 (serial number 7027 and up), 4020 (up to serial number 200999), all diesel models only. To fit tractors with serial numbers above listed, the exhaust hood must be enlarged. 36″ Height 5″ OD 2-15/16″ ID at base of intake Chrome Double Wall/Liner 16 Gauge Please Note: Will not fit tractors equipped with oval mufflers Models This part fits: 3010, 3020, 4010, 4020 Diesel Part Numbers: MUF90-0030, MUF90-0030-A