2018 Honda Civic 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

29 Alternator / Generator parts are listed for the 2018 Honda Civic, from WAI GLOBAL, PURE ENERGY, REMY and 7 other brands. SKP SK11847 carries the "Popular" badge. New and Remanufactured are all represented, and Remanufactured alone accounts for 20 parts.

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

One part is listed for the 2018 Honda Civic — BOSCH 1986AE0603.

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

4 Alternator / Generator End Bearing parts for the 2018 Honda Civic come from 4 brands — WJB / INMOTION PARTS, BCA, NATIONAL and 1 other brand. 3 parts fit every engine; the other 1 is engine-specific.

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.

1 further part sits outside the graded sections, with the same engine-level match.

Part numbers include WJB / INMOTION PARTS RB63032RS, BCA NB303CC and NATIONAL 303CC, among others listed above.

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. Read more

8 Alternator / Generator Pulley parts for the 2018 Honda Civic come from 3 brands — CONTINENTAL, LITENS and ACKOJA.

Listed part numbers: ACKOJA A26230004, ACKOJA A26230003 and CONTINENTAL 49974, plus the other parts above.

This table covers the Alternator / Generator stators. Read more

This group shows a single part: BOSCH 1986AE0677.

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

10 Battery parts for the 2018 Honda Civic come from 7 brands — DEKA, EXIDE, P1MAX and 4 other brands. The "Popular" part is DEKA 9A47. 6 parts fit every engine; the other 4 are engine-specific.

In the AGM (Extended Life) grade, DEKA, EXIDE, P1MAX and 3 other brands supply 9 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 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. Read more

2 Battery Current Sensor parts are listed for the 2018 Honda Civic, from SKP and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2018 Civic.

Part numbers include SKP SKBSC139 and STANDARD MOTOR PRODUCTS BSC139.

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

5 Fuse parts for the 2018 Honda Civic come from BUSSMANN. The "Popular" part is BUSSMANN ATM20LP. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).

In the 10 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM10LP.

The 15 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM15LP is listed in this group.

The 20 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM20LP is listed in this group.

In the 30 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM30LP.

In the 5 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM5LP.

This group includes BUSSMANN ATM20LP, BUSSMANN ATM10LP and BUSSMANN ATM15LP and the remaining parts above.

This table covers the fuse blocks that hold this vehicle's fuses. Read more

One part is listed for the 2018 Honda Civic — DORMAN 956652.

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

13 Horn parts for the 2018 Honda Civic come from FIAMM. The "Popular" part is FIAMM 7210223. 12 parts fit every engine; the other 1 is engine-specific.

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 7250522.

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

DORMAN supplies the 4 Keyless Entry Remote parts for the 2018 Honda Civic.

Part numbers include DORMAN 99528ST, DORMAN 99529ST and DORMAN 99528, among others listed above.

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

22 Speed Sensor parts for the 2018 Honda Civic come from 7 brands — STANDARD MOTOR PRODUCTS, DELPHI, BECK/ARNLEY and 4 other brands. The "Popular" part is HOLSTEIN 2VSS0073. 5 parts fit every engine; the other 17 are engine-specific.

The Economy section: 8 options from BECK/ARNLEY, HOLSTEIN and VEMO. HOLSTEIN 2VSS0073 is listed in this group.

Standard Replacement: 14 parts, from STANDARD MOTOR PRODUCTS, DELPHI, WALKER PRODUCTS and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS SC495.

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

30 Starter Motor parts are listed for the 2018 Honda Civic, from REMY, TERREPOWER, WAI GLOBAL and 7 other brands. TYC 116434 carries the "Popular" badge. They are grouped as New and Remanufactured, with Remanufactured the largest group at 21 parts from PURE ENERGY, REMY, FVP and 4 other brands.