2003 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 for the 2003 Kia Optima come from 9 brands — PURE ENERGY, REMY, WAI GLOBAL and 6 other brands. The "Popular" part is HL MANDO 11A1064.

The New section lists 8 options from WAI GLOBAL, HL MANDO, ULTRA-POWER and 3 other brands — brand-new units rather than rebuilt ones. HL MANDO 11A1064 is listed in this group.

The Remanufactured section lists 14 options from FVP, PURE ENERGY, REMY and 3 other brands — factory-rebuilt units with new wear components. HYUNDAI 3730038310RM is listed in this group.

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 are listed for the 2003 Kia Optima, from FULLRIVER, DEKA, LUCAS and 3 other brands. DEKA 9A47 carries the "Popular" badge.

The AGM (Extended Life) section lists 5 options from DEKA, LUCAS, EXIDE and 2 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A47 is listed in this group.

The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT61047 is listed in this group.

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

Listed part numbers: DEKA 9A47, LUCAS LBAGM001A and EXIDE MXH5L247, plus the other parts above.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

DEKA supplies both parts for the 2003 Kia Optima. All of them fit every engine offered in the 2003 Optima.

Listed part numbers: DEKA 00350 and DEKA 01056.

This table covers the flasher units that blink the turn signals and hazards. Read more

3 Flasher parts are listed for the 2003 Kia Optima, from STANDARD MOTOR PRODUCTS, TRIDON / NOVITA and WELLS. All of them fit every engine offered in the 2003 Optima.

Part numbers include STANDARD MOTOR PRODUCTS RY751, TRIDON / NOVITA EP34 and WELLS 1R2256.

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

29 Fuse parts are listed for the 2003 Kia Optima, from BUSSMANN and LITTELFUSE. BUSSMANN ATM10 carries the "Popular" badge. They are grouped as 10 Amp, 120 Amp, 15 Amp, 20 Amp, 25 Amp, 30 Amp and 40 Amp, with 20 Amp the largest group at 6 parts from BUSSMANN and LITTELFUSE.

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

35 Speed Sensor parts are listed for the 2003 Kia Optima, from AUTOTECNICA, GPD, STANDARD MOTOR PRODUCTS and 14 other brands. SKP SK917607 carries the "Popular" badge. Grades run from Economy through Standard Replacement; Economy is the most populated section, led by AUTOTECNICA, GPD, BECK/ARNLEY and 7 other brands.

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

18 Starter Motor parts for the 2003 Kia Optima come from 12 brands — PURE ENERGY, ACDELCO, FVP and 9 other brands. The "Popular" part is HL MANDO 12A1382.

The New section: 11 options from HL MANDO, PURE ENERGY, ULTRA-POWER and 8 other brands. HL MANDO 12A1382 is listed in this group.

The Remanufactured section: 7 options from ACDELCO, BOSCH, FVP and 4 other brands. ACDELCO 3361702 is listed in this group.