Aumzong Rear Right Power Window Regulator for 2016–2021 KIA Optima (Passenger Side) — Direct-Fit, Corrosion-Resistant

Aumzong 83481-D5000 is a direct-fit rear right power window regulator engineered to replace the factory unit on 2016–2021 KIA Optima models (1.6L, 2.0L, 2.4L).

This replacement regulator restores smooth up-and-down movement for the rear passenger window and matches the OEM mounting points and electrical interface for straightforward installation. Built from wear- and corrosion-resistant materials, the unit aims to deliver long-term reliability and consistent performance in daily driving and varying weather conditions. Compatible replacement part numbers include 83481-D4000, 83481D4000, 83481-D5000, and 83481D5000.

How does this regulator restore window operation?

The regulator assembly controls the mechanical movement of the rear right window glass when the lift switch is used. It replaces worn gears, cables, or rails that commonly cause slow, uneven, or stuck windows, returning normal travel and alignment to the glass.

• Direct-fit design matches OEM mounting points for the rear passenger side
• Includes the lifting mechanism required to raise and lower the window
• Compatible with the KIA electrical connector for plug-and-play replacement

Will this part fit my specific Optima model?

This regulator fits 2016–2021 KIA Optima sedans equipped with 1.6L, 2.0L, or 2.4L engines for the rear right/passenger side window. Verify the vehicle’s existing part number or compare the mounting layout to ensure compatibility before purchase.

• Supported engines: 1.6L, 2.0L, 2.4L for 2016–2021 Optima models
• Replacement part numbers: 83481-D4000 / 83481D4000 / 83481-D5000 / 83481D5000
• Designed for the rear passenger-side (right) window regulator position

What materials and durability features are included?

The Aumzong regulator is constructed from corrosion-resistant metals and wear-resistant components to withstand repeated cycles and exposure to moisture. These materials help maintain strength and operation over time, reducing the risk of premature failure from rust or abrasion.

• Wear-resistant gears and sliding surfaces for smoother operation
• Corrosion-resistant finish to protect against moisture and road salt
• Engineered to maintain stable performance under regular use

How difficult is installation and what should I expect?

Installation generally requires basic automotive tools and moderate mechanical experience: removal of the door panel, disconnecting the window motor connector, and swapping the regulator assembly. Many DIYers can complete the job in an hour or two; professional installation is recommended if you’re unfamiliar with door trim removal or electrical connectors.

• Remove interior door panel and water shield to access regulator
• Disconnect the motor electrical connector and unbolt the old assembly
• Bolt in the Aumzong regulator, reconnect wiring, and test window travel before reassembly

Who is this for: The Aumzong 83481-D5000 rear right window regulator is intended for KIA Optima owners and mechanics needing a reliable, OEM-style replacement for a malfunctioning rear passenger window. It suits DIY installers comfortable with door panel removal, independent repair shops, and fleet maintenance teams seeking a durable, direct-fit option backed by return and exchange support.