2020 Kia Optima Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

22 Alternator / Generator parts are listed for the 2020 Kia Optima, from BOSCH, TERREPOWER, SKP and 8 other brands. HL MANDO 11A1672 carries the "Popular" badge.

In the New grade, SKP, BOSCH, TYC and 5 other brands supply 11 parts: brand-new units rather than rebuilt ones. A representative part number is HL MANDO 11A1672.

In the Remanufactured grade, PURE ENERGY, BOSCH, FVP and 3 other brands supply 10 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 10275.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

2 Alternator / Generator Pulley parts for the 2020 Kia Optima come from 2 brands — CONTINENTAL and LITENS.

This group includes CONTINENTAL 49969 and LITENS 920057A.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

7 Battery parts for the 2020 Kia Optima come from 6 brands — ACDELCO, DEKA, LUCAS and 3 other brands. The "Popular" part is DEKA 9A48. 1 part fits every engine; the other 6 are engine-specific.

Part numbers include DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM, among others listed above.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

This group shows a single part: DORMAN 926011.

This table covers the Rain sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2020 Kia Optima — VEMO V52720254.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

9 Speed Sensor parts for the 2020 Kia Optima come from 6 brands — DELPHI, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS SC516.

The Economy section lists 2 options from BECK/ARNLEY and HOLSTEIN — the catalog's value-priced group. BECK/ARNLEY 0900026 is listed in this group.

In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, DELPHI and HYUNDAI supply 3 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SC516.

4 further parts sit outside the graded sections, with the same engine-level match.

This group includes STANDARD MOTOR PRODUCTS SC516, BECK/ARNLEY 0900026 and HOLSTEIN 2VSS0697 and the remaining parts above.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

21 Starter Motor parts are listed for the 2020 Kia Optima, from WAI GLOBAL, HL MANDO, TYC and 7 other brands. HL MANDO 12A1546 carries the "Popular" badge.

New: 9 parts, from HL MANDO, WAI GLOBAL, TYC and 1 other brand. A representative part number is HL MANDO 12A1546.

Remanufactured: 12 parts, from PURE ENERGY, FVP, REMY and 5 other brands. A representative part number is PURE ENERGY 17053.