Dorman Front Pressurized Coolant Reservoir with Cap — Ford C‑Max/Escape/Focus/Transit Connect Fit, OE‑style Replacement

The Dorman 603-382 is a direct-replacement pressurized coolant reservoir with cap engineered to restore proper coolant overflow, fitment, and durability for select Ford vehicles.

If your factory coolant tank is cracked, leaking, or the cap no longer seals, this Dorman front pressurized reservoir offers an OE-style replacement built to withstand underhood heat and vibration. Dorman designs their components to match original dimensions and connection points so installation is straightforward. This specific assembly is compatible with various Ford C-Max, Escape, Focus, and Transit Connect model years — always confirm exact trim fitment using your vehicle details before purchasing.

How does this reservoir match my original equipment?

Engineered to mirror the original part’s mounting, ports, and pressure-cap interface, the Dorman 603-382 aims to replicate factory fit and function. That reduces the need for modification and helps maintain the cooling system’s intended behavior.

• Direct-replacement design mimics OE shape and mounting points
• Factory-style cap interface for compatible sealing and pressure management
• Pre-drilled bosses and hose connections aligned to original locations

Will this reservoir withstand underhood heat and vibration?

Yes — the reservoir is made from durable materials selected to resist the thermal and mechanical stresses common in engine compartments. Dorman leverages long-term aftermarket experience to choose plastics and bonds that handle repeated heating cycles without premature failure.

• Heat-resistant plastic formulation to prevent warping
• Vibration-tolerant construction to avoid cracks and leaks
• Long-life cap seal to maintain system pressure over time

Which Ford models and years does this part fit?

The Dorman 603-382 fits multiple Ford nameplates across specific years; compatibility depends on trim and original equipment variations. Always verify fitment by entering your vehicle’s year, make, model and trim into the seller’s garage or fitment tool before ordering.

• Ford C‑Max: 2013–2018 (select trims)
• Ford Escape: 2013–2016 (select trims)
• Ford Focus: 2012–2018 (select trims)
• Ford Transit Connect: 2014–2016 (select trims)

What should I expect during installation and maintenance?

Installation is intended to be straightforward thanks to the matching mounting points and hose connections; basic hand tools are typically sufficient. After install, inspect for proper hose routing and secure clamps, and maintain coolant level and quality as part of routine service.

• Designed for bolt-on replacement with original mounting locations
• Recheck hose clamps and cap torque after first heat cycle
• Inspect periodically for discoloration, cracks, or seepage

Who is this for? This Dorman coolant reservoir is suited for DIY mechanics and professional technicians replacing a failed or aging overflow tank on compatible Ford C‑Max, Escape, Focus, or Transit Connect vehicles. It’s intended for customers who want an affordable, OE-aligned replacement that simplifies installation and restores cooling system performance. If your vehicle shows coolant loss, visible cracks in the tank, or the cap won’t hold pressure, replacing the reservoir with this Dorman assembly is a practical repair option. Before purchasing, verify exact vehicle fitment in the garage or fitment tool to ensure compatibility with your trim and year.