Dtomi Radiator Expansion Tank Coolant Overflow Bottle for Ford C‑Max/Escape/Focus 2012–2018 — Transparent, 21 PSI

This Dtomi radiator expansion tank is a direct-fit coolant recovery bottle engineered to replace worn or leaking reservoirs on compatible Ford C-Max, Escape, Focus and Transit Connect models.

Replace an ageing or damaged coolant reservoir with a tested, transparent plastic expansion tank that accepts factory-style hoses and caps. This Dtomi unit arrives ready to install and is matched to multiple OEM part numbers so you can restore proper coolant overflow capacity and visible fluid level checks without lengthy downtime.

Will this reservoir fit my vehicle?

Check the listed part numbers and vehicle applications before ordering; this Dtomi tank is designed to be compatible with a range of Ford models from 2012–2018. It replaces several OEM reference numbers, so matching one of those to your existing part is the fastest confirmation.

• Replaces: 603-382, 603382, CV6Z8A080A, CV6Z-8A080-A and related numbers
• Common fits: C-Max (2013–2018), Escape (2013–2016), Focus (2012–2018), Transit Connect (2014–2016)
• Physical checks: compare mounting points, inlet/outlet hose diameter (39 mm), and overall size 21×19×11 cm

How does this expansion tank handle pressure and heat?

The reservoir is made from heat-resistant plastic and is rated to handle up to 21 PSI, matching typical cooling-system pressure demands. It’s been subjected to durability testing for vibration and thermal cycling to help maintain performance under normal driving conditions.

• Maximum pressure rating: 21 PSI
• Material: transparent plastic for easy fluid level monitoring
• Designed to resist engine heat and vibration for long-term service

What are the installation and maintenance details?

Installation is straightforward for anyone familiar with basic engine-bay work: drain excess coolant as needed, unbolt the old tank, swap hoses and fasteners, and secure the new reservoir. Because the tank is transparent you can quickly monitor coolant level and identify leaks during routine checks.

• Includes: 1 coolant reservoir tank with cap
• Hose compatibility: radiator inlet/outlet hose outer diameter ≈ 39 mm (1.54")
• Dimensions: 21 × 19 × 11 cm for sizing and clearance planning

What warranty or support comes with this part?

Dtomi ships this reservoir brand new and tests each unit prior to dispatch. The product includes one year of quality support to address fitment questions or manufacturing defects reported within the coverage period.

• 100% new replacement part—tested before shipping
• One-year quality support from Dtomi for covered issues
• Seller reminder: confirm part number and vehicle compatibility before purchase

Who this is for: This Dtomi radiator expansion tank is ideal for DIY mechanics, independent repair shops, and vehicle owners who need a dependable, OEM-replacement coolant reservoir for compatible Ford C-Max, Escape, Focus and Transit Connect models. If your current tank shows cracks, leaks, discoloration, or you can’t retain coolant pressure, this direct-fit replacement restores overflow capacity and makes level checks simple with its transparent construction.