This starter clutch assembly is compatible with the following models: 650 (2002), 500 (2003), 650 (2003), 400 (2003), 330 STD 2X4 (2004–2005), 400 STD 2X4 (2004–2005), 330 STD 4X4 (2004–2005), 400 STD 4X4 (2004–2005), 400 STD (2006–2008), 400 (2004–2008), MAX 400 (2004–2005), MAX 400 STD (2006–2008), MAX 400 (2006–2008), 450 EFI (2018–2022), MAX 450 EFI (2018), MAX 450 EFI T3 (2019), MAX 450 EFI T3 6X6 (2019), L MAX 450 EFI (2015), L 450 EFI (2015), T 450 EFI (2020), T 450 EFI 6X6 (2020–2021), T 450 EFI STD DPS XU (2021), T MAX 450 EFI DPS (2020–2021), and T MAX 450 EFI 6X6 (2020–2021).It replaces the following part numbers: 420280178, 420280173, 420280176, 711280176 (Outer Half Pulley Ass'y), 420248233, 420280235 (Inner Half Ass'y), 420660124 (Torque Gear), 420238340, 420238173, 420238171, 711238170 (Compression Spring, Driven Pulley), 420220914 (Driven Pulley Shaft), 420280250 (Cam), 420627586, and 420627582 (Cam Plate).Constructed from aluminum, this assembly engages the starter motor to rotate the crankshaft during engine start, enabling piston and supporting power transmission for the fuel system during startup.Color matches the product image.Package includes the item shown.