Detroit V-Band Clamp for Diesel Particulate Filter (DPF) | 21048521, A4709950002, 2023037Michael Schwartz2023-06-06T09:48:36-08:00Detroit V-Band DPF Clamp | 21048521, A4709950002, 2023037 This is an aftermarket replacement for the OEM clamp. Guaranteed to fit. The FleetPar brand has been providing the transportation industry with Quality Parts for over a decade.