This rear brake wheel cylinder is designed as a direct replacement for the specified Nissan D21 Pickup models from 1986 and 1987, offering reliable braking performance for heavy-duty fleet and industrial applications. Built to meet or exceed OEM standards, this component ensures consistent brake force and durability under demanding conditions, making it suitable for both commercial and personal vehicle use. Its robust construction provides resistance to wear and corrosion, ensuring long service life and maintaining safe stopping power in critical braking situations.