2003 Acura TL 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

20 Alternator / Generator parts are listed for the 2003 Acura TL, from REMY, TERREPOWER, FVP and 5 other brands. WAI GLOBAL 13835N carries the "Popular" badge.

In the New grade, WAI GLOBAL, REMY, TERREPOWER and 3 other brands supply 9 parts: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 13835N.

In the Remanufactured grade, DENSO, FVP, PURE ENERGY and 3 other brands supply 11 parts: factory-rebuilt units with new wear components. A representative part number is DENSO 2101031.

This table covers the brackets that mount the Alternator / Generator. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2003 Acura TL — DORMAN 926099.

This table covers the rectifier diode packs in the alternator. Read more

One part is listed for the 2003 Acura TL — WELLS 1S8131.

This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

3 Alternator / Generator End Bearing parts for the 2003 Acura TL come from 3 brands — WJB / INMOTION PARTS, BCA and NATIONAL.

The Economy section lists 1 option from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS RB63032RS is listed in this group.

In the Standard Replacement grade, BCA and NATIONAL supply 2 parts: built to original-equipment specification. A representative part number is BCA NB303CC.

This group includes WJB / INMOTION PARTS RB63032RS, BCA NB303CC and NATIONAL 303CC.

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

5 Battery parts for the 2003 Acura TL come from 3 brands — DEKA, FVP and EXIDE. The "Popular" part is DEKA 9A78DT.

Listed part numbers: DEKA 9A78DT, DEKA 9A34 and EXIDE MX24, plus the other parts above.

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

2 Battery Terminal parts for the 2003 Acura TL come from DEKA.

Listed part numbers: DEKA 00350 and DEKA 01056.

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

5 Flasher parts for the 2003 Acura TL come from 4 brands — STANDARD MOTOR PRODUCTS, BUSSMANN, WELLS and 1 other brand. The "Popular" part is TRIDON / NOVITA EP34.

The Heavy-Duty Electronic section lists 1 option from BUSSMANN — grouped under the catalog's "Heavy-Duty Electronic" designation — the notes column spells out what sets them apart. BUSSMANN 758 is listed in this group.

Standard Replacement: 1 part, from WELLS. A representative part number is WELLS 1R1641.

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

Listed part numbers: TRIDON / NOVITA EP34, BUSSMANN 758 and WELLS 1R1641, plus the other parts 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

23 Fuse parts for the 2003 Acura TL come from 2 brands — BUSSMANN and LITTELFUSE. The "Popular" part is BUSSMANN ATM10.

In the 10 Amp grade, LITTELFUSE and BUSSMANN supply 5 parts: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM10.

The 15 Amp section lists 4 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM15 is listed in this group.

The 20 Amp section lists 6 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM20 is listed in this group.

In the 30 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM30.

The 40 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMX40 is listed in this group.

The 7.5 Amp section lists 2 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "7.5 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM712 is listed in this group.

This table covers the HID Lighting ballasts. Read more

2 HID Lighting Ballast parts are listed for the 2003 Acura TL, from AUTOTECNICA and DORMAN.

Part numbers include AUTOTECNICA HA1320412 and DORMAN 601127.

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

13 Horn parts for the 2003 Acura TL come from FIAMM. The "Popular" part is FIAMM 7210223.

The Accessory Replacement section lists 7 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 7210223 is listed in this group.

Standard Replacement: 6 parts, from FIAMM. A representative part number is FIAMM 7201223.

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

One part is listed for the 2003 Acura TL — DORMAN 13676.

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

14 Speed Sensor parts for the 2003 Acura TL come from 13 brands — FAMOUS BRAND, ATP, AUTOTECNICA and 10 other brands. The "Popular" part is FAMOUS BRAND 1802300347.

The Economy section: 9 options from FAMOUS BRAND, ATP, AUTOTECNICA and 5 other brands. FAMOUS BRAND 1802300347 is listed in this group.

Standard Replacement: 5 parts, from ROSTRA, WALKER PRODUCTS, DELPHI and 2 other brands. A representative part number is ROSTRA 501058.

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 are listed for the 2003 Acura TL, from ACDELCO, PURE ENERGY, FVP and 7 other brands. ACDELCO 3371124 carries the "Popular" badge.

New: 8 parts, from ACDELCO, PURE ENERGY, SKP and 5 other brands. A representative part number is ACDELCO 3371124.

Remanufactured: 8 parts, from PURE ENERGY, ACDELCO, BOSCH and 5 other brands. A representative part number is PURE ENERGY 17728.

This table covers the regulators that control alternator output voltage. Read more

3 Voltage Regulator parts for the 2003 Acura TL come from 3 brands — ACDELCO, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include ACDELCO E645C, STANDARD MOTOR PRODUCTS VR577 and WELLS 1V1014.