Dorman 603-666 Power Steering Fluid Reservoir with Cap OE Replacement

The Dorman 603-666 is a direct-fit replacement power steering fluid reservoir engineered to restore proper power steering system function. Manufactured under Dorman's OE Solutions line, this reservoir is built to match the original equipment reservoir in fit, form, and function — eliminating the need for costly dealer parts.

Constructed from durable blow-molded plastic, this reservoir is designed to withstand the demanding underhood environment, including prolonged exposure to heat, engine vibration, and power steering fluid. The reservoir comes as a complete assembly including the reservoir cap, so no additional hardware is needed for installation.

Key Features:

• Direct OE Replacement: Engineered to fit and function like the original equipment reservoir for a straightforward, trouble-free installation
• Complete Assembly: Includes both the reservoir and reservoir cap — no separate cap purchase required
• Heat & Vibration Resistant: Manufactured from quality materials rated to withstand the stresses of underhood heat and engine vibration
• On-Vehicle Tested: Each part undergoes on-vehicle testing to ensure a quality fit and long service life
• Plastic Construction: Lightweight, corrosion-resistant blow-molded plastic body
• Sold Individually: Quantity of one (1) per package

The Dorman 603-666 is a reliable, cost-effective alternative to OEM power steering reservoirs, helping vehicle owners and repair professionals avoid dealership prices without sacrificing quality or fitment accuracy.