2021 Honda Accord Electrical Parts

Engine:
1.5L L4 Turbocharged

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.

Alternator / Generator

New

Brand Part Number Markets Notes Buy
WAI GLOBAL Popular 21238N
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
135 Amps
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BOSCH AL1331N
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
135 Amps
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Amazon
SKP SK221238
🇺🇸 US 🇨🇦 CA
EX-L Model or LX Model or Sport or Sport SE or Touring
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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
Fitment notes — ACDELCO 3343203A
GoldRemanufactured
135.0 Amps
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Amazon
DENSO Popular 2101256
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Reman
Fitment notes — DENSO 2101256
Reman
135 Amps
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Amazon
BOSCH AL1331X
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Remanufactured
Fitment notes — BOSCH AL1331X
Remanufactured
135 Amps
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Amazon
FVP 10370
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Remanufactured
Fitment notes — FVP 10370
Remanufactured
135 Amps
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Amazon
PURE ENERGY 10370
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Remanufactured
Fitment notes — PURE ENERGY 10370
Remanufactured
135 Amps
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Amazon
REMY 11335
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Remanufactured
Fitment notes — REMY 11335
Remanufactured
135 Amps
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Amazon
TERREPOWER 42214
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Remanufactured
Fitment notes — TERREPOWER 42214
Remanufactured
135 Amps
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.

Alternator / Generator Diode Rectifier

Brand Part Number Markets Notes Buy
BOSCH 1986AE0603
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
RECTIFIER
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Amazon

This table covers the rectifier diode packs in the alternator.

Alternator / Generator End Bearing

Brand Part Number Markets Notes Buy
BOSCH 1986AE0627
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Inner
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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.

Alternator / Generator Pulley

Brand Part Number Markets Notes Buy
ACKOJA A26230004
🇺🇸 US 🇨🇦 CA
Clutch Pulley
Fitment notes — ACKOJA A26230004
Clutch Pulley
EX-L Model or LX Model or Sport or Sport SEwith OE No. 3114159BJ01
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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.

Alternator / Generator Stator

Brand Part Number Markets Notes Buy
BOSCH 1986AE0677
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
Amazon

This table covers the Alternator / Generator stators.

Battery

AGM (Extended Life)

Brand Part Number Markets Notes Buy
DEKA Popular 9A47
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
IntimidatorAGM
Fitment notes — DEKA 9A47
IntimidatorAGMBCI Group 47660 CCALength X Width X Height: 9.75 In x 6.875 In x 7.5 In
View on
Amazon
FVP Popular P47AGM
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Platinum AGMBCI Group: 47
Fitment notes — FVP P47AGM
Platinum AGMBCI Group: 47CCA: 680(LxWxH) 9.5" x 6.9" x 7.5"
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Amazon
EXIDE MXH5L247
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Marathon MaxBCI Group 47 (H5)
Fitment notes — EXIDE MXH5L247
Marathon MaxBCI Group 47 (H5)CCA: 680100 Minute Reserve Capacity(LxWxH) 9.63" x 6.75" x 7.44"
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Amazon
LUCAS LBAGM001A
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
BCI Group: 47AGM
Fitment notes — LUCAS LBAGM001A
BCI Group: 47AGMLucas MaxCCA 680RC 105(LxWxH) 9.5" x 6.9" x 7.5"
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Amazon
P1MAX PMAGMH547
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
BCI Group 47 AGM680 CCA
Fitment notes — P1MAX PMAGMH547
BCI Group 47 AGM680 CCALength x Width x Height: 9 5/8” x 6 7/8” x 7 4/7”
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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
Fitment notes — FULLRIVER FT61047
BCI Group 47(Length X Width X Height) 9.49 In x 6.89 In x 7.48 InAGMCCA: 610
Original Equipment battery is EFB (Enhanced Flooded Battery)
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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.

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.

Keyless Entry Remote

Brand Part Number Markets Notes Buy
DORMAN 99455ST
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Requires Locksmith Or Additional Scan Tool To Program
Fitment notes — DORMAN 99455ST
Requires Locksmith Or Additional Scan Tool To Program
4 Buttonwithout MemoryOE FCC ID: 2AOKM-HD09with Keyless Start
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Amazon
DORMAN 99457ST
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Requires Locksmith Or Additional Scan Tool To Program
Fitment notes — DORMAN 99457ST
Requires Locksmith Or Additional Scan Tool To Program
5 ButtonOE FCC ID: 2AOKM-HD09with Keyless Start
View on
Amazon

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

Parking Aid Sensor

Brand Part Number Markets Notes Buy
BOSCH F00E270810
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits Front
Fitment notes — BOSCH F00E270810
Fits:
Front
or:
Rear Outer
or:
Rear Inner
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Amazon
TECHPRO HO1075106
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Customer Paints to Match
Fitment notes — TECHPRO HO1075106
Customer Paints to Match
Front Inner
View on
Amazon
VARIOUS MFR HO1075108
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Customer Paints to Match
Fitment notes — VARIOUS MFR HO1075108
Customer Paints to Match
Fits:
Front OuterFront
or:
Rear
or:
Rear OuterFront
or:
RearProximity
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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.

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.

Speed Sensor

Economy

Brand Part Number Markets Notes Buy
HOLSTEIN Popular 2VSS0523
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Automatic CVT trans.Vehicle Speed
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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
Fitment notes — STANDARD MOTOR PRODUCTS SC655
Color/Finish: Black
Automatic CVT trans.InputTurbine
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
Fitment notes — WALKER PRODUCTS 2401306
Fits:
Transmission SpeedLocation: Transmission Side Coveror Transmission SpeedLocation: Torque Converter Case
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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.

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.

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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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.