Genuine Generac Replacement Part. New, Bulk Packed. Consult owners manual for proper part number identification and proper installation. Fits ALL 8, 10, 12, 13, 14, 15, 16, 17, 18, & 20kW generators, Generac, Guardian, Centurion, Bryant, Watchdog, Dayton, Siemens & Carrier Air-Cooled Standby Units 2008+. Also fits portable generator models 10kw and up to 17.5kw : 5501, 5502, 5503, 5504, 5505, 5506, 5518, 5520, 5522, 5523, 5524, 5525, 5348, 5395, 4389, 4673, 4758, 5280, 5240, 5247, 5241, 5242, 5248, 5281, 4456, 4390, 4675, 4666, 5011, 4670, 4759, 4451, 4583, 4987, 4582, 4986, 5209, 4916, 5820, 5821, 5838, 5870, 5871, 5872, 5873, 5874, 5875, 5882, 5883, 5884, 5885, 5886, 5887.