RHAOCZIYAUTO Ignition Lock Cylinder Housing Assembly for Kia Optima 2016-2020 — Includes Keys & Hardware, Direct-Fit

If the original ignition housing or cylinder in your Kia Optima shows wear, key sticking, or electrical contact problems, swapping in a complete lock housing assembly is a practical repair that restores secure starting and key operation. This RHAOCZIYAUTO assembly is designed to fit Optima vehicles from 2016 through 2020 and replaces several OEM reference numbers, delivering a ready-to-install unit that includes the cylinder, housing, clamp, bolts and two keys.

Will this part fit my Kia Optima?

Yes — the assembly is engineered specifically for Kia Optima vehicles produced between 2016 and 2020. It is intended to be a direct-fit replacement for the listed OEM numbers, which reduces modification and trim removal during installation.

• Compatible model years: 2016, 2017, 2018, 2019, 2020
• Replaces OE numbers: 81900-D5B00, 81900-D5A00, 81905-D4120, 81991-35240, 81970-D4B00, 81250-D4A00, 81900D5B00
• Designed as a direct replacement for factory components

What components are included and how does that simplify installation?

The package contains everything needed to swap the ignition assembly in one service session, cutting downtime and trips to the parts counter. Having the lock cylinder, housing clamp, bolts and two keys in the kit avoids sourcing separate pieces and helps ensure correct alignment and security.

• Included: ignition lock housing, lock cylinder, two bolts, one housing clamp, two keys
• Comes ready to install with hardware to secure the assembly
• No additional keys or small parts typically required

How durable and reliable is the RHAOCZIYAUTO assembly?

The assembly is built from a combination of impact-resistant ABS plastic and robust metal internals for long service life and consistent mechanical engagement. Materials were selected to tolerate everyday use and the mechanical stresses of repeated key cycles without premature failure.

• Housing: impact-resistant ABS plastic for structural durability
• Internal components: metal parts for reliable mechanical performance
• Manufactured to withstand repeated key insertion and rotation

Does the seller provide support or a warranty?

RHAOCZIYAUTO offers customer support and replacement options if the product has quality issues, aiming to resolve problems and ensure a positive purchase experience. Contact the seller directly if you receive a defective or incorrect unit for guidance on replacement procedures.

• Seller support available for product quality concerns
• Replacement unit may be provided when quality issues are reported
• Instructions: contact seller through your order channel for next steps

Who is this for: This ignition switch lock cylinder housing assembly is ideal for owners or technicians working on Kia Optima vehicles from 2016–2020 who need a straightforward, complete replacement kit. It suits drivers experiencing worn keys, difficulty turning the ignition, intermittent starting, or anyone performing a preventive restoration of the steering column ignition area. Mechanics and DIYers will appreciate the included hardware and two keys, which streamline the swap and return the vehicle to secure, reliable operation.