The T21803NO is a high-quality aftermarket brake pedal shaft designed as a direct replacement for various John Deere agricultural tractors and industrial equipment. This non-original part offers reliable performance, serving as an equivalent to the genuine John Deere OEM part number AR42146. It ensures proper function of the brake pedal assembly across a wide range of compatible models including 820, 920, 1020, 1120, 1350, 1520, 1530, 1550, 1630, 1640, 1750, 1830, 1840, 1850, 1950, 2020, 2030, 2040, 2040S, 2120, 2130, 2140, 2250, 2450, 2650, 2850, 3030, 3040, 3050, 3120, 3130, 3140, 3350, 3640, 3650, 4030, 4040, 4050, 4230, 4240, 4250, 4430, 4440, 4450, 4630, 4640, 4650, 4840, 4850 tractors, and 300, 300B, 301, 301A, 302, 302A, 400, 401, 401B, 401C, 401D, 410, 510 industrial models.