Dorman Engine Coolant Reservoir — Front Pressurized with Cap, Direct-Fit for Select Ford Models

The Dorman 603-382 is a direct-fit front pressurized engine coolant reservoir with cap designed to replace worn or damaged tanks on compatible Ford small cars and compact SUVs.

This replacement coolant reservoir is engineered to match the original equipment's fit and function while resisting underhood heat and vibration. Manufactured from durable materials and supplied with the pressurized cap, the assembly restores the correct coolant expansion and overflow management for compatible Ford C-Max, Escape, Focus and Transit Connect model years. Before ordering, use your vehicle's year, make and trim in the fitment tool to confirm compatibility.

How does this reservoir restore my vehicle's cooling system?

Replacing a cracked or leaking reservoir with this Dorman unit returns the system's ability to properly hold and recover coolant as engine temperatures change. The pressurized cap maintains system pressure and directs excess fluid back when the engine cools, preventing air ingestion and coolant loss.

• Direct replacement shape and mounting locations mirror the original for a secure fit.
• Includes pressurized cap to maintain correct cooling system pressure.
• Durable plastic resists heat cycling and vibration under the hood.
• Restores overflow routing and coolant level visibility.

Will this Dorman tank fit my Ford model and year?

This reservoir is compatible with specific model years of several Ford vehicles; however, fitment varies by trim and submodel. Enter your vehicle details in the garage or fitment tool on the product page to confirm fit before purchase.

• Compatible: Ford C-Max (2013–2018), Escape (2013–2016), Focus (2012–2018), Transit Connect (2014–2016).
• Check year, make and trim via the fitment tool to avoid returns.
• Wheelbase, engine option, or aftermarket modifications may affect compatibility.

How difficult is installation and what should I expect?

Installation is intended to be straightforward for anyone comfortable with basic engine-bay work. The reservoir mounts using factory attachment points and connects to existing hoses; typical installs require common hand tools and about 30–60 minutes, depending on access and experience.

• Disconnect negative battery terminal as a safety precaution before starting.
• Drain or capture coolant from the loose hoses to minimize spills.
• Reattach hoses and torque clamps to OEM specifications; refill and bleed cooling system per manufacturer guidance.
• Inspect for leaks and proper coolant level after a short test drive.

What are the construction and reliability highlights of this part?

Dorman designs aftermarket components for long-term performance, and this reservoir is built from heat-resistant plastic engineered to withstand repeated thermal cycles. Backed by Dorman’s decades of aftermarket experience, the part is intended to deliver dependable service similar to the original tank.

• Quality plastic molding suited for underhood temperature exposure.
• Engineered to reproduce OEM fit and mounting points for secure installation.
• Manufactured and tested to resist vibration and common failure modes like cracking.
• Includes pressurized cap matched to system pressure requirements.

Who is this for: This Dorman 603-382 front pressurized coolant reservoir is aimed at DIY mechanics, independent repair shops, and vehicle owners who need a cost-effective, factory-like replacement for a failing coolant tank on supported Ford C-Max, Escape, Focus and Transit Connect years. If your vehicle shows coolant loss, visible cracks, or cap failure, this part helps restore proper coolant containment and system pressure—provided you confirm fitment for your exact model and trim.