TRQ Windshield Washer Reservoir Compatible with 2017-2020 Kia Optima

In this review of the TRQ windshield washer reservoir for 2017-2020 Kia Optima models, the bottom line is simple: this is a practical, direct-replacement tank for DIYers and repair shops that need a reliable body part replacement without modifications. The reservoir is aimed at owners of Korea-built Optima sedans and plug-in or hybrid EX trims who want an OEM-like fit and straightforward installation. Customers praise its build quality and ease of installation, making it a worthwhile pick for anyone replacing a cracked or leaking reservoir.

Key Features

• Direct replacement fit: Designed for 2017-2020 Kia Optima Korea-built models and specific hybrid and plug-in hybrid EX trims, so it installs without trimming or fabricating mounts.
• Pre-assembled convenience: The reservoir arrives as a finished plastic tank that saves time by matching the original equipment shape and mounting points.
• Reference compatibility: Listed with multiple reference numbers including KI1288122 and 98621 A8000, helping confirm fitment with vehicle compatibility guides.
• Durable plastic construction: Molded from OEM-style plastic to resist road debris and normal weathering while holding washer fluid securely.
• Includes cap: Delivered with a cap to keep contaminants out of the washer fluid until installation.
• DIY support: Backed by TRQ's large library of DIY videos and fitment guidance to help users view before they do the install.

Who It's For

This part is best for Kia Optima owners (2017-2020 Korea-built models) who need a practical replacement for a damaged or leaking washer reservoir and want a direct-fit component that mirrors the original part. It is also a sensible choice for independent mechanics and DIYers who prefer to replace a tank themselves without modifying hoses or mounts.

Those who require a reservoir with an included pump, fluid level sensor, hoses, or mounting hardware should look elsewhere, as this product does not include pumps, sensors, hoses, or hardware and is intended as the tank and cap only.

Pros & Cons

Pros

• Easy to install as a direct replacement for the specified Optima models, saving installation time.
• Quality plastic construction that customers report as matching OEM tanks closely in appearance and fit.
• Clear reference numbers (KI1288122, 98621 A8000) make confirming compatibility straightforward.

Cons

• Does not include a washer pump, fluid level sensor, hoses, or mounting hardware, so extra parts may be required for a full repair.
• Some customers report mixed results with the fluid level sensor functionality when reusing components, so test before final assembly.

Specifications

Compatible Models	2017-2020 Kia Optima Korea-built; Hybrid EX; Plug-In Hybrid EX
Reference Numbers	KI1288122; 98621 A8000; 98621-A8000; 98621A8000
Material	Plastic
Includes	Cap
Mounting Hardware	Not included
Washer Pump	Not included
Fluid Level Sensor	Not included

Our Verdict

The TRQ windshield washer reservoir is a sensible, cost-effective replacement for owners of compatible 2017-2020 Kia Optima models who need a reliable tank that installs like the original. It offers solid construction and confirmed reference numbers for fitment, but buyers should plan to reuse or separately purchase the pump, sensor, hoses, and hardware if those components are not already serviceable.

Frequently Asked Questions

Will this reservoir fit my 2018 Kia Optima Hybrid?
Yes, it is listed as compatible with 2017-2018 Optima Hybrid Premium and 2017-2020 Hybrid EX models built in Korea, but always confirm fitment with your vehicle compatibility guide.

Does the tank include the washer pump and sensors?
No, this reservoir includes the cap only; the washer pump, fluid level sensor, hoses, and mounting hardware are not included.

Is the material durable for road use?
The reservoir is molded from OEM-style plastic and customers report it matches the original tank in quality and fit, suitable for normal road conditions.