This coolant reservoir tank with cap is designed to replace worn or leaking overflow tanks and restore proper cooling system function. It helps maintain correct coolant levels and system pressure.

Manufactured according to reference part number 19101-5BA-A01, the reservoir matches the original mounting structure and fits directly into the engine bay. Installation is straightforward and requires no modification.

The included cap provides a secure seal, helping prevent coolant loss. The plastic construction supports durability and consistent performance under daily driving conditions.

📌 Product Details
Part Name: Coolant Reservoir Tank
Part Number: 19101-5BA-A01
Reference: 19045-59B-005 / 1904559B005 / HO3014137
Condition: New
Material: Plastic
Placement: Engine Compartment
Installation: Direct Replacement

🚗 Vehicle Compatibility
Compatible with:
FOR Honda Civic Sedan 2016–2021

📦 Includes
1 × Coolant Reservoir
1 × Coolant Cap

⚠️ Important
Fits Sedan models only. Not compatible with Hatchback or Coupe.

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On Apr 13, 2026 at 05:32:08 PDT, seller added the following information: