YzusGomumu Coolant Reservoir Tank for Ford Focus & Transit Connect — OE 98AB8K218AK, Direct-Fit Replacement

The YzusGomumu coolant reservoir tank is a direct-fit replacement reservoir designed to restore proper coolant containment and support stable engine temperatures for compatible Ford Focus and Transit Connect models.

This replacement expansion tank is made to match the fit and function of the original equipment for specific Ford vehicles, helping prevent coolant loss and supporting reliable operation of the cooling system. It pairs robust, heat-resistant materials with correct mounting points and inlet/outlet geometry to make installation straightforward for mechanics and DIYers alike. Before ordering, verify compatibility using your vehicle year, engine, and the OE number 98AB8K218AK (98AB-8K218-AK / 1104120).

Will this reservoir fit my vehicle?

Check fitment by matching the listed years and engine types, or the OE number printed on your old tank. The part is intended for specific Ford Focus and Transit Connect models and is engineered to align with original mounting and hose connections.

• Compatible models: 2000–2004 Ford Focus L4 2.0L petrol (sedan and wagon)
• Also fits: 2010–2013 Ford Transit Connect XL/XLT L4 2.0L petrol vans
• Matches OE numbers: 98AB8K218AK / 98AB-8K218-AK / 1104120
• Confirm by comparing your current tank’s shape, hose locations, and mounting points

How does replacing the coolant tank help my engine?

A healthy expansion tank maintains a closed, pressurized coolant pathway so the cooling system functions as designed. A cracked or leaking tank can allow coolant loss, introduce air, and reduce system pressure, which can lead to overheating or poor engine performance.

• Prevents coolant leaks and reduces the need for frequent top-ups
• Maintains correct coolant pressure for efficient heat transfer
• Stops air ingestion that can cause hot spots or inconsistent temperature readings
• Protects surrounding components from coolant contamination

What are the construction and durability features of this tank?

The reservoir is manufactured from reinforced, heat-resistant plastic to endure continual temperature swings and repeated pressure cycles. Its robust build helps resist warping and cracking that commonly occur over long service lives in harsh engine bay environments.

• High-strength polymer resists heat and coolant chemicals
• Engineered seams and mounting points reduce failure risk
• Designed to withstand pressure fluctuations during engine warm-up and cool-down
• Quality control targeted to match OEM fit and finish

How straightforward is installation and maintenance?

Installation is typically a simple swap if your vehicle is one of the listed fits and the OE number matches. Routine inspection and timely replacement of a damaged expansion tank help avoid coolant leaks and maintain system integrity.

• Direct replacement — uses original mounting locations and hose connections
• Minimal tools required for removal and reinstallation
• Inspect hoses and cap for wear when replacing the tank
• Flush and refill coolant to manufacturer specifications after install

Who is this for? This replacement reservoir is for owners and technicians servicing 2000–2004 Ford Focus (2.0L L4) sedans and wagons, and 2010–2013 Ford Transit Connect vans (XL/XLT, 2.0L L4), including those working on the 2012 electric Transit Connect variant listed. It’s aimed at drivers who need a dependable, OEM-alike tank to stop leaks, restore cooling system performance, and avoid the higher cost of engine damage from overheating. Always confirm compatibility by checking your vehicle details and the OE number before purchase.