Raybestos WC37693 is a rear drum-brake wheel cylinder in the Element3 line, a direct-fit, professional-grade replacement. This cylinder replaces OE part number 2037693 and is specified for rear drum brakes on Nissan Altima (1993–1998) and Maxima (1989–1994). Additional listings show compatibility with the Nissan Stanza (1986–1989), indicating a broader Nissan drum-brake wheel-cylinder fit.
