Description
The 2016-2020 Kia Optima ignition cylinder and door/trunk cylinder set (part number 81991-35240) is a complete lock replacement package for late-model Optima service work. This aftermarket assembly uses the KK12 keyway, so it accepts the correct blade profile for Optima cylinder repairs and rekeying.
- Fits: Kia Optima 2016-2020
- Part Number: 81991-35240
- Blade / Keyway: KK12
- Manufacturer: My Key Supply
- Condition: Brand New Aftermarket
- SKU: 4801
This set covers the ignition cylinder along with the door and trunk cylinders, making it suited to full lock replacement after damage, wear, or lost-key situations where matched cylinders are required. Locksmiths and technicians can cut and key the cylinders to a single working key for a clean, uniform Optima restoration.




