41 Electrical parts are listed for the 2021 Honda Accord, in 12 part types, covering the 1.5L L4 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The electrical system on the 2021 Honda Accord covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Alternator / Generator (11 parts), Battery (6 parts) and Speed Sensor (6 parts). The other 9 part types cover the remaining 18 parts.
Every part on this page is matched to the 1.5L L4 Turbocharged — the only engine offered in the 2021 Honda Accord.
The most listed brands for 2021 Honda Accord electrical parts are BOSCH (6 parts), FVP (3 parts) and TYC (2 parts), plus 23 more brands. Quality grades include Remanufactured, AGM and New.
8 parts on this 2021 Honda Accord page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WAI GLOBAL 21238N (Alternator / Generator) and DEKA 9A47 (Battery). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular | 21238N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 135 Amps | View on Amazon |
| BOSCH | AL1331N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 135 Amps | View on Amazon |
| SKP | SK221238 | 🇺🇸 US 🇨🇦 CA | EX-L Model or LX Model or Sport or Sport SE or Touring | View on Amazon |
| TYC | 221238 | 🇺🇸 US 🇨🇦 CA | EX-L Model or LX Model or Sport or Sport SE or Touring130 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 3343203A | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| DENSO Popular | 2101256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reman | View on Amazon |
| BOSCH | AL1331X | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP | 10370 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY | 10370 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY | 11335 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER | 42214 | 🇺🇸 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.
11 Alternator / Generator parts are listed for the 2021 Honda Accord, from BOSCH, WAI GLOBAL, SKP and 7 other brands. WAI GLOBAL 21238N carries the "Popular" badge.
In the New grade, WAI GLOBAL, BOSCH, SKP and 1 other brand supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 21238N.
In the Remanufactured grade, ACDELCO, DENSO, BOSCH and 4 other brands supply 7 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3343203A.
Alternator / Generator Diode Rectifier
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 1986AE0603 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RECTIFIER | View on Amazon |
This table covers the rectifier diode packs in the alternator.
One part is listed for the 2021 Honda Accord — BOSCH 1986AE0603.
Alternator / Generator End Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 1986AE0627 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Inner | View on Amazon |
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.
This group shows a single part: BOSCH 1986AE0627.
Alternator / Generator Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA | A26230004 | 🇺🇸 US 🇨🇦 CA | Clutch Pulley | View on Amazon |
| CONTINENTAL | 49974 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| LITENS | 920058A | 🇺🇸 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 for the 2021 Honda Accord come from 3 brands — ACKOJA, CONTINENTAL and LITENS.
This group includes ACKOJA A26230004, CONTINENTAL 49974 and LITENS 920058A.
Alternator / Generator Stator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 1986AE0677 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Alternator / Generator stators.
This group shows a single part: BOSCH 1986AE0677.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A47 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| FVP Popular | P47AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 47 | View on Amazon |
| EXIDE | MXH5L247 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 47 (H5) | View on Amazon |
| LUCAS | LBAGM001A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 47AGM | View on Amazon |
| P1MAX | PMAGMH547 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 47 AGM680 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER | FT61047 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 47(Length X Width X Height) 9.49 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.
6 Battery parts for the 2021 Honda Accord come from 6 brands — DEKA, FVP, EXIDE and 3 other brands. The "Popular" part is DEKA 9A47.
In the AGM (Extended Life) grade, DEKA, FVP, EXIDE and 2 other brands supply 5 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A47.
In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT61047.
This group includes DEKA 9A47, FVP P47AGM and EXIDE MXH5L247 and the remaining parts above.
Battery Current Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | BSC154 | 🇺🇸 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.
One part is listed for the 2021 Honda Accord — STANDARD MOTOR PRODUCTS BSC154.
Keyless Entry Remote
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 99455ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Requires Locksmith Or Additional Scan Tool To Program | View on Amazon |
| DORMAN | 99457ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Requires Locksmith Or Additional Scan Tool To Program | View on Amazon |
This table covers the key fobs that lock, unlock and start the vehicle.
DORMAN supplies both parts for the 2021 Honda Accord.
This group includes DORMAN 99455ST and DORMAN 99457ST.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | F00E270810 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Front | View on Amazon |
| TECHPRO | HO1075106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
| VARIOUS MFR | HO1075108 | 🇺🇸 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 are listed for the 2021 Honda Accord, from BOSCH, TECHPRO and VARIOUS MFR.
Listed part numbers: BOSCH F00E270810, TECHPRO HO1075106 and VARIOUS MFR HO1075108.
Parking Aid Sensor Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | HO1074103 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the brackets that mount the Parking Aid Sensor. 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.
One part is listed for the 2021 Honda Accord — VARIOUS MFR HO1074103.
Speed Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Popular | 2VSS0523 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic CVT trans.Vehicle Speed | View on Amazon |
| VEMO | V26770038 | 🇺🇸 US 🇨🇦 CA | EX-L Model or LX Model or Sport or Sport SEVehicle Speed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | SC655 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color/Finish: Black | View on Amazon |
| DELPHI | SS12387 | 🇺🇸 US 🇨🇦 CA | Located on TransmissionVehicle Speed | View on Amazon |
| WALKER PRODUCTS | 2401306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Transmission SpeedLocation: Transmission Side Coveror Transmission Speed | View on Amazon |
| WALKER PRODUCTS | 2401525 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transmission SpeedLocation: Transmission Case | 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.
6 Speed Sensor parts for the 2021 Honda Accord come from 5 brands — WALKER PRODUCTS, HOLSTEIN, VEMO and 2 other brands. The "Popular" part is HOLSTEIN 2VSS0523.
The Economy section lists 2 options from HOLSTEIN and VEMO — the catalog's value-priced group. HOLSTEIN 2VSS0523 is listed in this group.
In the Standard Replacement grade, WALKER PRODUCTS, STANDARD MOTOR PRODUCTS and DELPHI supply 4 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SC655.
This group includes HOLSTEIN 2VSS0523, VEMO V26770038 and STANDARD MOTOR PRODUCTS SC655 and the remaining parts above.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC | 116406 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular | 19615 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP | 19615 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY | 16287 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER | 52120 | 🇺🇸 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 are listed for the 2021 Honda Accord, from TYC, PURE ENERGY, FVP and 2 other brands. PURE ENERGY 19615 carries the "Popular" badge.
New: 1 part, from TYC. A representative part number is TYC 116406.
Remanufactured: 4 parts, from PURE ENERGY, FVP, REMY and 1 other brand. A representative part number is PURE ENERGY 19615.
This group includes PURE ENERGY 19615 and TYC 116406 and the remaining parts above.
Buying Electrical Parts for a 2021 Honda Accord
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 1.5L 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: Alternator / Generator and Battery .
Frequently Asked Questions
How many electrical parts fit the 2021 Honda Accord?
Our catalog currently lists 41 electrical parts for the 2021 Honda Accord across 12 subcategories and 26 brands, covering the 1.5L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2021 Honda Accord?
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 2021 Honda Accord 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 2021 Honda Accord?
Every part on this page is matched to the 1.5L 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 2021 Honda Accord
Electrical Parts for Other Honda Accord Years
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