2018 Jeep Wrangler 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

22 Alternator / Generator parts are listed for the 2018 Jeep Wrangler, from WAI GLOBAL, MOPAR, PURE ENERGY and 4 other brands. SKP SK21025N carries the "Popular" badge.

In the New grade, WAI GLOBAL, MOPAR, SKP and 1 other brand supply 11 parts: brand-new units rather than rebuilt ones. A representative part number is SKP SK21025N.

In the Remanufactured grade, PURE ENERGY, REMY, TERREPOWER and 2 other brands supply 11 parts: factory-rebuilt units with new wear components. A representative part number is MOPAR R8078950AA.

This table covers the brackets that mount the Alternator / Generator. 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. Read more

MOPAR supplies both parts for the 2018 Jeep Wrangler.

Part numbers include MOPAR 4627047AA and MOPAR 5281455AA.

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

3 Alternator / Generator Pulley parts for the 2018 Jeep Wrangler come from 3 brands — CONTINENTAL, DORMAN and LITENS.

This group includes CONTINENTAL 49995, DORMAN 300427 and LITENS 920080A.

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

21 Battery parts for the 2018 Jeep Wrangler come from 9 brands — ACDELCO, DEKA, FVP and 6 other brands. The "Popular" part is DEKA 9A47.

In the AGM (Extended Life) grade, ACDELCO, DEKA, FVP and 5 other brands supply 19 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 2 parts: 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 FT68048.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

MOPAR supplies both parts for the 2018 Jeep Wrangler.

This group includes MOPAR 5064283AJ and MOPAR 68379690AB.

This table covers the Battery covers. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68330400AC.

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

4 Battery Current Sensor parts are listed for the 2018 Jeep Wrangler, from MOPAR, BOSCH and STANDARD MOTOR PRODUCTS.

Part numbers include BOSCH 0199300199, MOPAR 68289207AC and MOPAR 4692269AI, among others listed above.

This table covers the Battery Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

MOPAR supplies the 3 Battery Heat Shield parts for the 2018 Jeep Wrangler.

This group includes MOPAR 68307801AC, MOPAR 68294412AC and MOPAR 68307803AC.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

This group shows a single part: MOPAR 68401984AA.

This table covers the trays the battery sits in. Read more

2 Battery Tray parts for the 2018 Jeep Wrangler come from MOPAR.

Listed part numbers: MOPAR 68188030AA and MOPAR 68079473AG.

This table covers the Blind Spot Detection 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

One part is listed for the 2018 Jeep Wrangler — MOPAR 68454896AA.

This table covers the body-control modules that run lighting, locks and wipers. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68268178AE.

This table covers the brackets that mount the Body Control Module (BCM). 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. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68342286AB.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

This group shows a single part: MOPAR 4692143AA.

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

10 Fuse parts for the 2018 Jeep Wrangler come from 2 brands — MOPAR and BUSSMANN. The "Popular" part is MOPAR 6101486.

In the 10 Amp grade, MOPAR 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 MOPAR 6101486.

The 15 Amp section lists 1 option from MOPAR — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. MOPAR 6101487 is listed in this group.

The 20 Amp section lists 1 option from MOPAR — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. MOPAR 6101488 is listed in this group.

In the 25 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 4687835.

In the 30 Amp grade, MOPAR 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 MOPAR 4868007AB.

The 40 Amp section lists 2 options from BUSSMANN and MOPAR — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS40 is listed in this group.

In the 50 Amp grade, BUSSMANN and MOPAR supply 2 parts: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS50.

The 60 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS60 is listed in this group.

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

DORMAN supplies both parts for the 2018 Jeep Wrangler.

Part numbers include DORMAN 956600 and DORMAN 956358.

This table covers the holders that carry a fuse. Read more

This group shows a single part: MOPAR 68083377AA.

This table covers the HID Lighting ballasts. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68295920AB.

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

17 Horn parts for the 2018 Jeep Wrangler come from 2 brands — FIAMM and MOPAR. The "Popular" part is FIAMM 7210223.

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.

In the Standard Replacement grade, FIAMM and MOPAR supply 10 parts: built to original-equipment specification. A representative part number is FIAMM 7201223.

This table covers the receivers that pick up the key-fob unlock signal. Read more

MOPAR supplies the 8 Keyless Entry Module / Receiver parts for the 2018 Jeep Wrangler. MOPAR 68140642AE carries the "Popular" badge.

Part numbers include MOPAR 68140642AE, MOPAR 68140639AE and MOPAR 68204465AD, among others listed above.

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

MOPAR supplies the 6 Keyless Entry Remote parts for the 2018 Jeep Wrangler. MOPAR 68416784AC carries the "Popular" badge.

This group includes MOPAR 68416784AC, MOPAR 68384452AD and MOPAR 68384454AD and the remaining parts above.

This table covers the modules that control the exterior lighting. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68347093AC.

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. Read more

3 Parking Aid Sensor parts are listed for the 2018 Jeep Wrangler, from MOPAR and TECHPRO.

This group includes MOPAR 6BD56RXFAA, MOPAR 6MQ01RXFAA and TECHPRO CH1178100.

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. Read more

MOPAR supplies both parts for the 2018 Jeep Wrangler.

Part numbers include MOPAR 4672576AA and MOPAR 68289851AA.

This table covers the Power inverters. Read more

MOPAR supplies both parts for the 2018 Jeep Wrangler.

Part numbers include MOPAR 68347427AB and MOPAR 68347435AB.

This table covers the totally-integrated power modules that distribute body electrical power. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

2 Power Supply Module (TIPM) parts for the 2018 Jeep Wrangler come from MOPAR.

This group includes MOPAR 68303924AC and MOPAR R8303924AC.

This table covers the capacitors that suppress radio noise. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS RC33.

This table covers the Serial Data Gateway modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2018 Jeep Wrangler — MOPAR 68454413AA.

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

This group shows a single part: STANDARD MOTOR PRODUCTS TCP03.

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

8 Starter Motor parts are listed for the 2018 Jeep Wrangler, from MOPAR, TYC, WAI GLOBAL and 4 other brands. TYC 116431 carries the "Popular" badge.

New: 2 parts, from TYC and WAI GLOBAL. A representative part number is TYC 116431.

Remanufactured: 6 parts, from MOPAR, PURE ENERGY, BOSCH and 2 other brands. A representative part number is PURE ENERGY 19625.

This group includes TYC 116431, WAI GLOBAL 16431N and PURE ENERGY 19625 and the remaining parts above.

This table covers the Yaw 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

This group shows a single part: MOPAR 56038988AC.