2020 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

31 Alternator / Generator parts for the 2020 Jeep Wrangler come from 8 brands — MOPAR, PURE ENERGY, WAI GLOBAL and 5 other brands. The "Popular" part is SKP SK10144. Grades run from New through Remanufactured; New is the most populated section, led by MOPAR, WAI GLOBAL, SKP and 1 other brand.

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

2 Alternator / Generator Bracket parts for the 2020 Jeep Wrangler come from MOPAR.

Part numbers include MOPAR 5281576AB 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

7 Alternator / Generator Pulley parts are listed for the 2020 Jeep Wrangler, from CONTINENTAL, LITENS and DORMAN.

Listed part numbers: CONTINENTAL 49961, CONTINENTAL 48720 and CONTINENTAL 49995, plus the other parts above.

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 are listed for the 2020 Jeep Wrangler, from ACDELCO, DEKA, FVP and 6 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 19 options from ACDELCO, DEKA, FVP and 5 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 2 options 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.

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

3 Battery Cable parts for the 2020 Jeep Wrangler come from MOPAR.

Listed part numbers: MOPAR 68370004AB, MOPAR 68421780AD and MOPAR 68364724AA.

This table covers the Battery Cooling fans. Typical signs include overheating at idle, a fan that never comes on, or a blade that hits the shroud. Confirm the fan command and the relay before replacing the assembly. Read more

One part is listed for the 2020 Jeep Wrangler — VARIOUS MFR CH4040100.

This table covers the Battery covers. Read more

2 Battery Cover parts for the 2020 Jeep Wrangler come from MOPAR.

Part numbers include MOPAR 68330400AC and MOPAR 68330399AB.

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 for the 2020 Jeep Wrangler come from 2 brands — MOPAR and STANDARD MOTOR PRODUCTS.

Listed part numbers: MOPAR 68289207AC and STANDARD MOTOR PRODUCTS BSC126.

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

3 Battery Heat Shield parts for the 2020 Jeep Wrangler come from MOPAR.

Listed part numbers: MOPAR 68307801AC, MOPAR 68294412AC and MOPAR 68307803AC.

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

MOPAR supplies the 4 Battery Tray parts for the 2020 Jeep Wrangler.

Part numbers include MOPAR 68472671AA, MOPAR 68472660AA and MOPAR 68275818AD, among others listed above.

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

This group shows a single part: MOPAR 68454896AA.

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

This group shows a single part: MOPAR 68342286AB.

This table covers the EV Charging cables. 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 the 6 EV Charging Cable parts for the 2020 Jeep Wrangler. MOPAR 5185049AD carries the "Popular" badge.

Listed part numbers: MOPAR 5185049AD, MOPAR 5185051AC and MOPAR 5185053AD, plus the other parts above.

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

11 Fuse parts are listed for the 2020 Jeep Wrangler, from MOPAR and BUSSMANN. MOPAR 68202896AA carries the "Popular" badge. 7 parts fit every engine; the other 4 are engine-specific.

The 10 Amp section lists 1 option from MOPAR — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. MOPAR 68100731AB is listed in this group.

In the 15 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68100745AB.

In the 20 Amp grade, MOPAR supplies 2 parts: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68202896AA.

The 25 Amp section lists 1 option from MOPAR — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. MOPAR 68100747AB is listed in this group.

The 30 Amp section lists 1 option from MOPAR — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. MOPAR 68144653AA is listed in this group.

In the 40 Amp grade, BUSSMANN and MOPAR supply 2 parts: grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS40.

The 50 Amp section lists 2 options from BUSSMANN and MOPAR — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS50 is listed in this group.

In the 60 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS60.

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

5 Fuse Block parts for the 2020 Jeep Wrangler come from 2 brands — MOPAR and DORMAN.

Listed part numbers: DORMAN 956600, DORMAN 956358 and MOPAR 68403056AB, plus the other parts above.

This table covers the Fuse Box covers. Read more

MOPAR supplies the 4 Fuse Box Cover parts for the 2020 Jeep Wrangler.

This group includes MOPAR 68465572AA, MOPAR 68402756AA and MOPAR 68465571AA and the remaining parts above.

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

9 Horn parts are listed for the 2020 Jeep Wrangler, from FIAMM and MOPAR. FIAMM 72112 carries the "Popular" badge. 6 parts fit every engine; the other 3 are engine-specific.

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 4 options from FIAMM and MOPAR — built to original-equipment specification. FIAMM 7421122 is listed in this group.

Listed part numbers: FIAMM 72112, FIAMM 7410024 and FIAMM 6602023, plus the other parts above.

This table covers the Hybrid batteries. Typical signs include slow cranking or a battery lamp. Confirm group size and clean the terminals before condemning the battery. Read more

One part is listed for the 2020 Jeep Wrangler — MOPAR R8488244AB.

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

3 Keyless Entry Module / Receiver parts for the 2020 Jeep Wrangler come from MOPAR. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: MOPAR 68449322AB, MOPAR 68449323AB and MOPAR 68159259AA.

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

6 Keyless Entry Remote parts for the 2020 Jeep Wrangler come from MOPAR. The "Popular" part is MOPAR 68416784AC.

Listed part numbers: MOPAR 68416784AC, MOPAR 68384452AD and MOPAR 68384454AD, plus the other parts above.

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

5 Parking Aid Sensor parts for the 2020 Jeep Wrangler come from 4 brands — DORMAN, MOPAR, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is DORMAN 684102.

Listed part numbers: DORMAN 684102, DORMAN 684126 and MOPAR 5YV68TZZAA, plus the other parts above.

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

This group shows a single part: MOPAR 4672576AA.

This table covers the Power inverters. Read more

2 Power Inverter parts for the 2020 Jeep Wrangler come from MOPAR.

Part numbers include MOPAR 68347427AB and MOPAR 68347435AB.

This table covers the powertrain-control modules that run engine and transmission. Read more

One part is listed for the 2020 Jeep Wrangler — MOPAR 68256850AA.

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

One part is listed for the 2020 Jeep Wrangler — 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

2 Serial Data Gateway Module parts for the 2020 Jeep Wrangler come from MOPAR.

Part numbers include MOPAR 68454413AA and MOPAR 68492546AA.

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 for the 2020 Jeep Wrangler come from 9 brands — PURE ENERGY, REMY, TERREPOWER and 6 other brands. The "Popular" part is PURE ENERGY 19202N. New and Remanufactured are all represented, and Remanufactured alone accounts for 21 parts.

This table covers the Starter Motor 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

One part is listed for the 2020 Jeep Wrangler — MOPAR 68412016AB.