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).Designed to work with related components including 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), and 420627586, 420627582 (Cam Plate).The assembly is directional and constructed from aluminum.It engages the starter motor to drive the crankshaft during engine start, enabling piston while preventing reverse resistance that could affect the starter motor.Proper function of this component supports vehicle startup.Package includes the item shown in the product image.