This page lists 41 electrical parts for the 2019 Acura TLX, across 7 part types, covering both the 2.4L L4 and the 3.5L V6. Every part shows its brand, manufacturer part number and fitment notes.
On the 2019 Acura TLX, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Horn (13 parts), Alternator / Generator (7 parts) and Battery (6 parts). The other 4 part types cover the remaining 15 parts.
The 2019 Acura TLX was sold with both the 2.4L L4 and the 3.5L V6. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
22 brands supply electrical parts for the 2019 Acura TLX, led by FIAMM (13 parts), FVP (3 parts) and STANDARD MOTOR PRODUCTS (3 parts), plus 19 more brands. Quality grades include Standard Replacement, Remanufactured and Accessory Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2019 Acura TLX. 9 parts have it, including ACDELCO 3343085 (Alternator / Generator) and DEKA 9A3585 (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Fits: 2.4L L4 | 221154 | 🇺🇸 US 🇨🇦 CA | 135 Amps | View on Amazon |
| WAI GLOBAL Fits: 2.4L L4 | 21154N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Denso 135 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.4L L4 | 3343085 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| DENSO Popular Fits: 2.4L L4 | 2101212 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reman | View on Amazon |
| BOSCH Fits: 2.4L L4 | AL1325X | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.4L L4 | 10268 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.4L L4 | 10268 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
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.
7 Alternator / Generator parts for the 2019 Acura TLX come from 7 brands — TYC, WAI GLOBAL, ACDELCO and 4 other brands. The "Popular" part is ACDELCO 3343085.
The New section lists 2 options from TYC and WAI GLOBAL — brand-new units rather than rebuilt ones. TYC 221154 is listed in this group.
The Remanufactured section lists 5 options from ACDELCO, DENSO, BOSCH and 2 other brands — factory-rebuilt units with new wear components. ACDELCO 3343085 is listed in this group.
This group includes ACDELCO 3343085, TYC 221154 and WAI GLOBAL 21154N and the remaining parts above.
Alternator / Generator Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA Fits: 2.4L L4 | A26230003 | 🇺🇸 US 🇨🇦 CA | Clutch Pulley | View on Amazon |
| CONTINENTAL Fits: 2.4L L4 | 49958 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| LITENS Fits: 2.4L L4 | 920037A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Installation Tool Required | View on Amazon |
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.
3 Alternator / Generator Pulley parts are listed for the 2019 Acura TLX, from ACKOJA, CONTINENTAL and LITENS.
Listed part numbers: ACKOJA A26230003, CONTINENTAL 49958 and LITENS 920037A.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 2.4L L4 | 9A3585 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| FVP Popular Fits: 2.4L L4 | P35AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 35 | View on Amazon |
| ACDELCO Fits: 2.4L L4 | 35AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 35 | View on Amazon |
| EXIDE Fits: 2.4L L4 | MX35 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 35 | View on Amazon |
| P1MAX Fits: 2.4L L4 | PMAGM35 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 35 AGM650 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 2.4L L4 | FT75035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 35(Length X Width X Height) 9.45 In x 6.85 In x 8.66 In | View on Amazon |
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.
6 Battery parts are listed for the 2019 Acura TLX, from DEKA, FVP, ACDELCO and 3 other brands. DEKA 9A3585 carries the "Popular" badge.
The AGM (Extended Life) section lists 5 options from DEKA, FVP, ACDELCO and 2 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A3585 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 FT75035 is listed in this group.
Part numbers include DEKA 9A3585, FVP P35AGM and ACDELCO 35AGM, among others listed above.
Battery Current Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.4L L4 | 010547781 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BoltedIntelligent Battery Sensor | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 | BSC149 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intelligent Battery Sensor | View on Amazon |
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.
2 Battery Current Sensor parts for the 2019 Acura TLX come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS.
Part numbers include HELLA 010547781 and STANDARD MOTOR PRODUCTS BSC149.
Horn
Accessory Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular Fits: 2.4L L4 | 7210223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Accessory HornFreeway Blaster | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7211223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Accessory Horn (Louder)FWY Blaster | View on Amazon |
| FIAMM Fits: 2.4L L4 | 72112 | 🇺🇸 US 🇨🇦 CA | Freeway BlasterAccessory Horn | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7410024 | 🇺🇸 US 🇨🇦 CA | Accessory HornEl Grande | View on Amazon |
| FIAMM Fits: 2.4L L4 | 6602023 | 🇺🇸 US 🇨🇦 CA | Accessory HornRed | View on Amazon |
| FIAMM Fits: 2.4L L4 | 6602523 | 🇺🇸 US 🇨🇦 CA | Accessory HornChrome | View on Amazon |
| FIAMM Fits: 2.4L L4 | 6604523 | 🇺🇸 US 🇨🇦 CA | Ultimate Blast HornAccessory Horn | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular Fits: 2.4L L4 | 7201223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Tone2 Terminal Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM Popular Fits: 2.4L L4 | 7200223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Tone2 Terminal Blade Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7421122 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7421322 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7250622 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM Fits: 2.4L L4 | 7250522 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
FIAMM supplies the 13 Horn parts for the 2019 Acura TLX. FIAMM 7210223 carries the "Popular" badge.
In the Accessory Replacement grade, FIAMM supplies 7 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.
The Standard Replacement section lists 6 options from FIAMM — built to original-equipment specification. FIAMM 7201223 is listed in this group.
Speed Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 2.4L L4 | 0900019 | 🇺🇸 US 🇨🇦 CA | Fits Automatic Dual Clutch trans.Connector Vertical - Mount hole At 3 O'Clock Position | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 2.4L L4 | SS12404 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 | SC677 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plastic Sensorvendor # Panasonic | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 | SC856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Metal Sensorvendor # Toyo | View on Amazon |
| WALKER PRODUCTS Fits: 2.4L L4 | 2401512 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transmission SpeedVendor: Panasonic | View on Amazon |
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.
5 Speed Sensor parts are listed for the 2019 Acura TLX, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, DELPHI and 1 other brand. DELPHI SS12404 carries the "Popular" badge.
In the Economy grade, BECK/ARNLEY supplies 1 part: the catalog's value-priced group. A representative part number is BECK/ARNLEY 0900019.
The Standard Replacement section: 4 options from STANDARD MOTOR PRODUCTS, DELPHI and WALKER PRODUCTS. DELPHI SS12404 is listed in this group.
Listed part numbers: DELPHI SS12404, BECK/ARNLEY 0900019 and STANDARD MOTOR PRODUCTS SC677, plus the other parts above.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 2.4L L4 | 30688N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 2.4L L4 | 19591 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.4L L4 | 19591 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.4L L4 | 16278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.4L L4 | 52075 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
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.
5 Starter Motor parts for the 2019 Acura TLX come from 5 brands — WAI GLOBAL, PURE ENERGY, FVP and 2 other brands. The "Popular" part is PURE ENERGY 19591.
The New section: 1 option from WAI GLOBAL. WAI GLOBAL 30688N is listed in this group.
The Remanufactured section: 4 options from PURE ENERGY, FVP, REMY and 1 other brand. PURE ENERGY 19591 is listed in this group.
Part numbers include PURE ENERGY 19591 and WAI GLOBAL 30688N, among others listed above.
Buying Electrical Parts for a 2019 Acura TLX
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Every electrical part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Horn and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 2019 Acura TLX?
Our catalog currently lists 41 electrical parts for the 2019 Acura TLX across 7 subcategories and 22 brands, covering both the 2.4L L4 and the 3.5L V6. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2019 Acura TLX engines?
Yes. Every electrical part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical problems on a 2019 Acura TLX?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2019 Acura TLX was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2019 Acura TLX?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2019 Acura TLX
Electrical Parts for Other Acura TLX Years
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