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WAI 380598 Window Regulator - Rear Left

Brand	WAI 380598
Position	Rear Left
Fits	Kia · 5 vehicles

Direct replacement. Built for a straightforward window regulator repair on the correct application.

Door mechanism repair. Restores smooth glass movement when the original regulator wears out.

$88.84Free shipping

In stock · usually ships same day before 1pm CST

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Window Regulator for Kia Optima

This WAI window regulator, part number 380598, is built for direct replacement service on compatible vehicles. It fits 2016-2020 Kia Optima, rear left, with panel notes, and is a practical choice when the window no longer moves smoothly or stays in place.

Key Features

Fits 2016-2020 Kia Optima, rear left, with panel notes.
Window regulator replacement for restoring glass movement and support.
WAI part number 380598 for easy identification and ordering.
Body and door application for a direct-fit repair workflow.

Detailed Description

Use this window regulator to replace a worn, binding, or non-functioning regulator in the rear left door area of a Kia Optima. The fitment covers 2016, 2017, 2018, 2019, and 2020 model years, making part number 380598 a focused solution for this specific application. For buyers searching for a Kia Optima window regulator or a rear left door regulator, this WAI unit provides the correct application match without unnecessary complexity.

What It Is Used For

Window glass that will not raise or lower properly.
Grinding, sticking, or uneven window movement.
A regulator that has failed mechanically inside the door.
Restoring normal operation after wear in the door mechanism.

Installation Notes and Tips

Confirm the rear left position and panel note before ordering. Compare the original regulator layout and connector style to verify application details on the vehicle. Professional installation is recommended for door trim removal and regulator replacement.

Quality Assurance

WAI supplies replacement parts for automotive repair applications, and part number 380598 is cataloged for the listed Kia Optima fitment.

This part fits 5 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
2020	Kia	Optima	2.4L	L4	Rear Left	w/ Panel
2019	Kia	Optima	2.4L	L4	Rear Left	w/ Panel
2018	Kia	Optima	2.4L	L4	Rear Left	w/ Panel
2017	Kia	Optima	2.4L	L4	Rear Left	w/ Panel
2016	Kia	Optima	2.4L	L4	Rear Left	w/ Panel
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