2019 Toyota Corolla 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

33 Alternator / Generator parts for the 2019 Toyota Corolla come from 11 brands — TERREPOWER, WAI GLOBAL, FVP and 8 other brands. The "Popular" part is SKP SK3343029. New and Remanufactured are all represented, and Remanufactured alone accounts for 23 parts.

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

6 Alternator / Generator Pulley parts are listed for the 2019 Toyota Corolla, from LITENS, ACKOJA, CONTINENTAL and 2 other brands. 1 part fits every engine; the other 5 are engine-specific.

Part numbers include ACKOJA A70230008, CONTINENTAL 49996 and DORMAN 300434, among others listed above.

This table covers the Automatic Headlamp 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 2019 Toyota Corolla — AUTOTECNICA TY1321529.

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

13 Battery parts are listed for the 2019 Toyota Corolla, from FVP, P1MAX, EXIDE and 6 other brands. DEKA 9A47 carries the "Popular" badge. 1 part fits every engine; the other 12 are engine-specific.

The AGM (Extended Life) section lists 11 options from FVP, P1MAX, EXIDE and 5 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 2 options from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT75035 is listed in this group.

This table covers the Battery Current 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

This group shows a single part: STANDARD MOTOR PRODUCTS BSC118.

This table covers the clamps and brackets that secure the battery. Read more

This group shows a single part: VARIOUS MFR TO2996103.

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

6 Battery Terminal parts are listed for the 2019 Toyota Corolla, from BECK/ARNLEY, DORMAN, STANDARD MOTOR PRODUCTS and 1 other brand. BECK/ARNLEY 2060001 carries the "Popular" badge. All of them fit every engine offered in the 2019 Corolla.

Listed part numbers: BECK/ARNLEY 2060001, STANDARD MOTOR PRODUCTS BP100P and AUTOTECNICA TY1318200, plus the other parts above.

This table covers the Cruise Control Distance 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 2019 Toyota Corolla — WELLS 5S17123.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

2 Engine Control Module (ECM Computer) parts for the 2019 Toyota Corolla come from BSE.

Part numbers include BSE ECC23144M and BSE EM23144.

This table covers the horns mounted in the front of the vehicle. Read more

FIAMM supplies the 10 Horn parts for the 2019 Toyota Corolla. FIAMM 72112 carries the "Popular" badge. All of them fit every engine offered in the 2019 Corolla.

In the Accessory Replacement grade, FIAMM supplies 5 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 72112.

The Standard Replacement section lists 5 options from FIAMM — built to original-equipment specification. FIAMM 7250522 is listed in this group.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

This group shows a single part: DORMAN 99684ST.

This table covers the replacement shells for the key fob. Read more

This group shows a single part: DORMAN 92071.

This table covers the Lane Departure Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

2 Lane Departure Camera / Module parts for the 2019 Toyota Corolla come from 2 brands — DORMAN and WELLS. Every part fits both the 1.8L L4 and the 2.0L L4.

Part numbers include DORMAN 601988 and WELLS 8A1012.

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

12 Speed Sensor parts are listed for the 2019 Toyota Corolla, from AISIN, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 3 other brands. ULTRA-POWER SC658 carries the "Popular" badge.

In the Economy grade, BECK/ARNLEY, ULTRA-POWER and HOLSTEIN supply 4 parts: the catalog's value-priced group. A representative part number is ULTRA-POWER SC658.

The Standard Replacement section: 6 options from AISIN, DELPHI and STANDARD MOTOR PRODUCTS. DELPHI SS12255 is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

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

16 Starter Motor parts for the 2019 Toyota Corolla come from 8 brands — PURE ENERGY, FVP, BOSCH and 5 other brands. The "Popular" part is ACDELCO 3362271A.

The New section lists 3 options from WAI GLOBAL and BOSCH — brand-new units rather than rebuilt ones. BOSCH SR3316N is listed in this group.

The Remanufactured section lists 13 options from PURE ENERGY, FVP, REMY and 4 other brands — factory-rebuilt units with new wear components. ACDELCO 3362271A is listed in this group.