The 2020 Acura RDX has 36 electrical parts with verified fitment on this page — 8 part types and 22 brands, covering the 2.0L L4 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2020 Acura RDX, 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 Battery (9 parts), Horn (7 parts) and Alternator / Generator (5 parts). The other 5 part types cover the remaining 15 parts.
The 2020 Acura RDX came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
22 brands supply electrical parts for the 2020 Acura RDX, led by FIAMM (7 parts), STANDARD MOTOR PRODUCTS (4 parts) and WAI GLOBAL (2 parts), plus 19 more brands. Quality grades include AGM, Accessory Replacement and Remanufactured.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Acura RDX. 5 parts have it, including WAI GLOBAL 11965N (Alternator / Generator) and DEKA 9A48 (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular | 11965N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 110 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO | 2101261 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reman | View on Amazon |
| PURE ENERGY | 11933 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY | 11349 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER | 42216 | 🇺🇸 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.
5 Alternator / Generator parts for the 2020 Acura RDX come from 5 brands — WAI GLOBAL, DENSO, PURE ENERGY and 2 other brands. The "Popular" part is WAI GLOBAL 11965N.
The New section lists 1 option from WAI GLOBAL — brand-new units rather than rebuilt ones. WAI GLOBAL 11965N is listed in this group.
The Remanufactured section lists 4 options from DENSO, PURE ENERGY, REMY and 1 other brand — factory-rebuilt units with new wear components. DENSO 2101261 is listed in this group.
Listed part numbers: WAI GLOBAL 11965N, DENSO 2101261 and PURE ENERGY 11933, plus the other parts above.
Alternator / Generator Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 49999 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| LITENS | 920087A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
2 Alternator / Generator Pulley parts are listed for the 2020 Acura RDX, from CONTINENTAL and LITENS.
This group includes CONTINENTAL 49999 and LITENS 920087A.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A48 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| LUCAS Popular | LBAGM004A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 48AGM | View on Amazon |
| ACDELCO | 48AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 48 | View on Amazon |
| ACDELCO | 48AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| DEKA | 9A47 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| EXIDE | MXH6L348 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| FVP | P48AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 48 | View on Amazon |
| P1MAX | PMAGMH648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 48 AGM760 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER | FT68048 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 48(Length X Width X Height) 10.94 In x 6.89 In x 7.48 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.
9 Battery parts are listed for the 2020 Acura RDX, from DEKA, ACDELCO, LUCAS and 4 other brands. DEKA 9A48 carries the "Popular" badge.
The AGM (Extended Life) section lists 8 options from DEKA, ACDELCO, LUCAS and 3 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A48 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 FT68048 is listed in this group.
Listed part numbers: DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM, plus the other parts above.
Battery Current Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 010547761 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BoltedIntelligent Battery Sensor | View on Amazon |
| STANDARD MOTOR PRODUCTS | BSC140 | 🇺🇸 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 2020 Acura RDX come from 2 brands — HELLA and STANDARD MOTOR PRODUCTS.
This group includes HELLA 010547761 and STANDARD MOTOR PRODUCTS BSC140.
Horn
Accessory Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 72112 | 🇺🇸 US 🇨🇦 CA | Freeway BlasterAccessory Horn | View on Amazon |
| FIAMM | 7410024 | 🇺🇸 US 🇨🇦 CA | Accessory HornEl Grande | View on Amazon |
| FIAMM | 6602023 | 🇺🇸 US 🇨🇦 CA | Accessory HornRed | View on Amazon |
| FIAMM | 6602523 | 🇺🇸 US 🇨🇦 CA | Accessory HornChrome | View on Amazon |
| FIAMM | 6604523 | 🇺🇸 US 🇨🇦 CA | Ultimate Blast HornAccessory Horn | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 7421122 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM | 7421322 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
FIAMM supplies the 7 Horn parts for the 2020 Acura RDX. FIAMM 72112 carries the "Popular" badge.
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 2 options from FIAMM — built to original-equipment specification. FIAMM 7421122 is listed in this group.
Part numbers include FIAMM 72112, FIAMM 7410024 and FIAMM 6602023, among others listed above.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | PPS303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS312 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| TECHPRO | AC1075100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
This table covers the ultrasonic park-aid sensors in the bumper. 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.
3 Parking Aid Sensor parts for the 2020 Acura RDX come from 2 brands — STANDARD MOTOR PRODUCTS and TECHPRO.
Part numbers include STANDARD MOTOR PRODUCTS PPS303, STANDARD MOTOR PRODUCTS PPS312 and TECHPRO AC1075100.
Speed Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 0900045 | 🇺🇸 US 🇨🇦 CA | Fits SH-AWDTRANSMISSION | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | SS12401 | 🇺🇸 US 🇨🇦 CA | Countershaft Speed Sensor | View on Amazon |
| STANDARD MOTOR PRODUCTS | SC825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Vehicle Speed | View on Amazon |
| WALKER PRODUCTS | 2401305 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transmission SpeedMainshaft Speed Sensor | 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.
4 Speed Sensor parts are listed for the 2020 Acura RDX, from BECK/ARNLEY, DELPHI, STANDARD MOTOR PRODUCTS and 1 other brand.
In the Economy grade, BECK/ARNLEY supplies 1 part: the catalog's value-priced group. A representative part number is BECK/ARNLEY 0900045.
The Standard Replacement section: 3 options from DELPHI, STANDARD MOTOR PRODUCTS and WALKER PRODUCTS. DELPHI SS12401 is listed in this group.
This group includes BECK/ARNLEY 0900045, DELPHI SS12401 and STANDARD MOTOR PRODUCTS SC825 and the remaining parts above.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC | 119353 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAI GLOBAL | 19353N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY | 12935 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 12935 | 🇺🇸 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.
4 Starter Motor parts for the 2020 Acura RDX come from 4 brands — TYC, WAI GLOBAL, PURE ENERGY and 1 other brand.
The New section: 2 options from TYC and WAI GLOBAL. TYC 119353 is listed in this group.
The Remanufactured section: 1 option from PURE ENERGY. PURE ENERGY 12935 is listed in this group.
1 further part sits outside the graded sections, with the same engine-level match.
Part numbers include TYC 119353, WAI GLOBAL 19353N and PURE ENERGY 12935, among others listed above.
Buying Electrical Parts for a 2020 Acura RDX
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.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- 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: Battery and Horn .
Frequently Asked Questions
How many electrical parts fit the 2020 Acura RDX?
Our catalog currently lists 36 electrical parts for the 2020 Acura RDX across 8 subcategories and 22 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2020 Acura RDX?
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 2020 Acura RDX 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 2020 Acura RDX?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. 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 2020 Acura RDX
Electrical Parts for Other Acura RDX Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.