2021 Jeep Gladiator 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

26 Alternator / Generator parts for the 2021 Jeep Gladiator come from 8 brands — MOPAR, PURE ENERGY, WAI GLOBAL and 5 other brands. The "Popular" part is SKP SK21025N. 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

This group shows a single part: 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

5 Alternator / Generator Pulley parts are listed for the 2021 Jeep Gladiator, from CONTINENTAL, LITENS and DORMAN.

Listed part numbers: CONTINENTAL 48720, CONTINENTAL 49995 and DORMAN 300427, 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 2021 Jeep Gladiator, from ACDELCO, DEKA, FVP and 6 other brands. DEKA 9A48 carries the "Popular" badge. 15 parts fit every engine; the other 6 are engine-specific.

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

2 Battery Cable parts for the 2021 Jeep Gladiator come from MOPAR.

Part numbers include MOPAR 68364724AA and MOPAR 68370004AB.

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 2021 Jeep Gladiator come from 2 brands — MOPAR and STANDARD MOTOR PRODUCTS. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

Part numbers include 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 2021 Jeep Gladiator come from MOPAR. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

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

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

MOPAR supplies both parts for the 2021 Jeep Gladiator. 1 part fits every engine; the other 1 is engine-specific.

This group includes MOPAR 68275818AD and MOPAR 68275852AE.

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 68416989AC.

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

2 Body Control Module (BCM) parts for the 2021 Jeep Gladiator come from MOPAR. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

This group includes MOPAR 68496170AB and MOPAR 68574845AA.

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 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 2021 Jeep Gladiator, from MOPAR and BUSSMANN. MOPAR 68100746AB carries the "Popular" badge. All of them fit every engine offered in the 2021 Gladiator.

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 68100746AB.

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

3 Fuse Block parts for the 2021 Jeep Gladiator come from 2 brands — MOPAR and DORMAN. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: DORMAN 956358, MOPAR 68445795AB and MOPAR 68359123AB.

This table covers the Fuse Box covers. Read more

MOPAR supplies the 3 Fuse Box Cover parts for the 2021 Jeep Gladiator. 1 part fits every engine; the other 2 are engine-specific.

Part numbers include MOPAR 68402756AA, MOPAR 68465571AA and MOPAR 68423922AA.

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

MOPAR supplies the 4 Horn parts for the 2021 Jeep Gladiator. All of them fit every engine offered in the 2021 Gladiator.

Listed part numbers: MOPAR 68284211AA, MOPAR 68284212AA and MOPAR 68297656AB, plus the other parts above.

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

6 Keyless Entry Module / Receiver parts for the 2021 Jeep Gladiator come from MOPAR. The "Popular" part is MOPAR 68068148AA. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

Listed part numbers: MOPAR 68068148AA, MOPAR 56029936AB and MOPAR 56029937AB, plus the other parts above.

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

6 Keyless Entry Remote parts for the 2021 Jeep Gladiator come from MOPAR. The "Popular" part is MOPAR 68416784AC. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

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

This table covers the Park Assist (PAS) Camera 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

MOPAR supplies both parts for the 2021 Jeep Gladiator. All of them fit every engine offered in the 2021 Gladiator.

This group includes MOPAR 4672768AE and MOPAR 4672769AE.

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

7 Parking Aid Sensor parts for the 2021 Jeep Gladiator come from 4 brands — TECHPRO, DORMAN, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is DORMAN 684102. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

Listed part numbers: DORMAN 684102, STANDARD MOTOR PRODUCTS PPS111 and DORMAN 684126, plus the other parts above.

This table covers the Power inverters. Read more

3 Power Inverter parts for the 2021 Jeep Gladiator come from MOPAR. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

Part numbers include MOPAR 68547759AA, MOPAR 68312754AC and MOPAR 68375111AA.

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

One part is listed for the 2021 Jeep Gladiator — MOPAR 68256850AA.

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

One part is listed for the 2021 Jeep Gladiator — 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 2021 Jeep Gladiator come from MOPAR. Every part fits both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6.

This group includes 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

12 Starter Motor parts for the 2021 Jeep Gladiator come from 8 brands — PURE ENERGY, BOSCH, FVP and 5 other brands. The "Popular" part is TYC 116431.

The New section lists 3 options from TYC, MOPAR and WAI GLOBAL — brand-new units rather than rebuilt ones. TYC 116431 is listed in this group.

The Remanufactured section lists 9 options from PURE ENERGY, BOSCH, FVP and 2 other brands — factory-rebuilt units with new wear components. PURE ENERGY 12466 is listed in this group.