The DNJ RA906 Rocker Arm is a vintage part designed specifically for 1982-1988 Toyota Camry and Celica models with 2.0L and 2.8L SOHC 8v and 12v engines. Manufactured by DNJ Engine Components in China, this rocker arm is an interchangeable part with numbers 023-1770, 056-6189, RA15-1525, and RATO19. While it is not a performance part, it is a crucial component for ensuring proper engine function in vintage Toyota vehicles.