AFEISOL 603 383 Coolant Reservoir Tank with Cap

When your vehicle’s coolant reservoir is cracked, leaking, or the cap no longer seals, the cooling system can’t manage expansion properly. This replacement tank from AFEISOL is molded from heat-resistant polypropylene and designed to match OEM fitment for a range of GM compact and midsize models. The semi-transparent body lets you monitor fluid level at a glance, and the included cap restores correct pressure management so the system refills and recovers coolant as intended.

Which vehicles and OEM numbers is the AFEISOL 603 383 reservoir compatible with?

This tank is intended for multiple Chevrolet and Buick models across several engine sizes and model years. Verify your vehicle’s engine displacement and model year against the list below before ordering to avoid fitment issues.

• Fits: Chevrolet Cruze (2010–2016) — 1.4L, 1.8L, 2.0L variations depending on year; Cruze Limited (2016) 1.4L/1.8L
• Also fits: Chevrolet Orlando (2012–2014) 2.4L; Buick Verano (2012–2017) 2.0L/2.4L; Buick Cascada (2016–2018) 1.6L
• Common OEM/reference numbers: 603-383, 603 383, 13505353, 13393368, 13465094, 13256823, DAKG-15390, FRT1216C

How does this replacement tank restore cooling system function?

The expansion tank collects coolant pushed out of the radiator when the engine heats up and returns it as the system cools, maintaining proper fluid volume and minimizing air pockets. A properly sealing cap maintains correct pressure so the system operates within designed temperature and pressure ranges.

• Stores and returns coolant to reduce low-level conditions and overheating risk.
• Semi-transparent housing enables quick visual level checks without opening the cap.
• Included cap restores pressure control and prevents boil-over or leakage under load.

What materials and build quality can I expect from the AFEISOL tank?

The tank is fabricated from durable polypropylene designed to withstand engine bay temperatures and common chemicals found in cooling systems. Mold quality and inlet/outlet placements are engineered to align with the OEM layout for simple installation and reliable long-term service.

• Heat-resistant PP plastic resists warping and degradation from coolant and temperature cycles.
• Pre-formed connections and mounting points match original equipment locations for straightforward swap-in.
• Opaque-to-semi-transparent finish balances visibility with UV and heat tolerance.

How do I verify fitment before buying and install this reservoir?

Check your vehicle’s model year and engine displacement against the compatibility list and compare the photographed item to your factory tank. Installation typically requires removing the old tank, disconnecting hoses and sensors, and securing the replacement in the same mounts—no major modifications are needed if you have the correct part.

• Refer to the main product image to confirm cap style, hose locations, and mounting points.
• Basic hand tools and a drained, cool cooling system are recommended for safe installation.
• Top off with manufacturer-specified coolant and bleed the cooling system per vehicle instructions.

Who is this for: Drivers and mechanics who need a reliable OEM-style replacement coolant reservoir for select Chevrolet and Buick models—especially when the original tank is leaking, cracked, or the cap no longer holds pressure. It’s suited to DIYers who want a straightforward swap with visible fluid monitoring and to shops needing a direct-fit aftermarket option that lists common OEM reference numbers for fast cross-referencing.