2021 Jeep Grand Cherokee 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 are listed for the 2021 Jeep Grand Cherokee, from REMY, TERREPOWER, PURE ENERGY and 7 other brands. TYC 211576 carries the "Popular" badge. Grades run from New through Remanufactured; Remanufactured is the most populated section, led by PURE ENERGY, FVP, REMY and 5 other brands.

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

One part is listed for the 2021 Jeep Grand Cherokee — MOPAR 68045250AC.

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

20 Battery parts for the 2021 Jeep Grand Cherokee come from 9 brands — ACDELCO, DEKA, FVP and 6 other brands. The "Popular" part is DEKA 9A48. 12 parts fit every engine; the other 8 are engine-specific.

In the AGM (Extended Life) grade, ACDELCO, DEKA, FVP and 5 other brands supply 18 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 9A48.

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 the 11 Battery Cable parts for the 2021 Jeep Grand Cherokee. MOPAR 5064960AA carries the "Popular" badge. 5 parts fit every engine; the other 6 are engine-specific.

This table covers the Battery covers. Read more

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

Listed part numbers: MOPAR 6MN69TX7AA and MOPAR 6MN70TX7AA.

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

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

Part numbers include MOPAR 68438688AE and MOPAR 56029777AC.

This table covers the covers that protect battery terminals. Read more

This group shows a single part: MOPAR 68738464AA.

This table covers the Battery Vent tubes. Read more

MOPAR supplies the 3 Battery Vent Tube parts for the 2021 Jeep Grand Cherokee. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include MOPAR 56029779AA, MOPAR 5033388AC and MOPAR 68448117AA.

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

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

Part numbers include MOPAR 68565333AB and MOPAR 68499743AB.

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

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

This group includes MOPAR 68438337AD and MOPAR 68440586AK.

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 2021 Jeep Grand Cherokee — MOPAR 68141802AA.

This table covers the Cruise Control Distance 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 Cruise Control Distance Sensor parts for the 2021 Jeep Grand Cherokee come from MOPAR. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

Part numbers include MOPAR 68456215AE, MOPAR 4672827AC and MOPAR 4672827AD, among others listed above.

This table covers the Door control modules. Read more

6 Door Control Module parts for the 2021 Jeep Grand Cherokee come from MOPAR. The "Popular" part is MOPAR 68316560AD. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

Listed part numbers: MOPAR 68316560AD, MOPAR 68316561AD and MOPAR 68316559AD, plus the other parts above.

This table covers the brackets that mount the Engine Control Module (ECM Computer). 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 2021 Jeep Grand Cherokee. 1 part fits every engine; the other 1 is engine-specific.

This group includes MOPAR 68251949AD and MOPAR 68426482AB.

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

12 Fuse parts for the 2021 Jeep Grand Cherokee come from MOPAR. The "Popular" part is MOPAR 6101488. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

In the 10 Amp grade, MOPAR supplies 2 parts: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68100731AB.

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 68100745AB is listed in this group.

The 20 Amp section lists 3 options 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 68100747AB.

In the 30 Amp grade, MOPAR supplies 2 parts: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68144653AA.

The 40 Amp section lists 2 options from MOPAR — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. MOPAR 68144445AA is listed in this group.

In the 50 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68399851AA.

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

6 Fuse Block parts are listed for the 2021 Jeep Grand Cherokee, from MOPAR, DORMAN and STANDARD MOTOR PRODUCTS. DORMAN 956601 carries the "Popular" badge. 3 parts fit every engine; the other 3 are engine-specific.

Part numbers include DORMAN 956601, MOPAR 68425203AB and MOPAR 68347016AE, among others listed above.

This table covers the Fuse Box covers. Read more

3 Fuse Box Cover parts for the 2021 Jeep Grand Cherokee come from MOPAR. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: MOPAR 68202821AA, MOPAR 68190347AA and MOPAR 68242210AA.

This table covers the HID Lighting ballasts. Read more

MOPAR supplies the 3 HID Lighting Ballast parts for the 2021 Jeep Grand Cherokee. All of them fit every engine offered in the 2021 Grand Cherokee.

Listed part numbers: MOPAR 68222897AA, MOPAR 68248627AA and MOPAR 68298080AA.

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

6 Horn parts for the 2021 Jeep Grand Cherokee come from MOPAR. 2 parts fit every engine; the other 4 are engine-specific.

Listed part numbers: MOPAR 68386895AA, MOPAR 68421140AA and MOPAR 68421142AA, plus the other parts above.

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

MOPAR supplies the 7 Keyless Entry Module / Receiver parts for the 2021 Jeep Grand Cherokee. MOPAR 68068148AA carries the "Popular" badge. All of them fit every engine offered in the 2021 Grand Cherokee.

This group includes MOPAR 68068148AA, MOPAR 68051315AB and MOPAR 68509794AA and the remaining parts above.

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

9 Keyless Entry Remote parts are listed for the 2021 Jeep Grand Cherokee, from DORMAN and MOPAR. MOPAR 68377534AB carries the "Popular" badge. All of them fit every engine offered in the 2021 Grand Cherokee.

Listed part numbers: MOPAR 68377534AB, MOPAR 68143502AC and DORMAN 99087ST, plus the other parts above.

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

One part is listed for the 2021 Jeep Grand Cherokee — AUTOTECNICA JE1323202.

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

3 Park Assist (PAS) Camera Module parts for the 2021 Jeep Grand Cherokee come from MOPAR. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

This group includes MOPAR 68411135AC, MOPAR 68411136AC and MOPAR 68426445AB.

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

9 Parking Aid Sensor parts are listed for the 2021 Jeep Grand Cherokee, from STANDARD MOTOR PRODUCTS, MOPAR, DORMAN and 1 other brand. BOSCH 0263043553 carries the "Popular" badge. All of them fit every engine offered in the 2021 Grand Cherokee.

Part numbers include BOSCH 0263043553, STANDARD MOTOR PRODUCTS PPS59 and DORMAN 684123, among others listed 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

One part is listed for the 2021 Jeep Grand Cherokee — MOPAR 68164661AA.

This table covers the Power Door Resistance Pinch 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

MOPAR supplies the 4 Power Door Resistance Pinch Sensor parts for the 2021 Jeep Grand Cherokee. All of them fit every engine offered in the 2021 Grand Cherokee.

This group includes MOPAR 68165049AC, MOPAR 68165048AC and MOPAR 68459590AB and the remaining parts above.

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 Rain 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 2021 Jeep Grand Cherokee — MOPAR 68194700AB.

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

MOPAR supplies the 3 Serial Data Gateway Module parts for the 2021 Jeep Grand Cherokee. All of them fit every engine offered in the 2021 Grand Cherokee.

This group includes MOPAR 68454413AA, MOPAR 68410619AF 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

31 Starter Motor parts are listed for the 2021 Jeep Grand Cherokee, from MOPAR, PURE ENERGY, REMY and 6 other brands. MOPAR 56044736AC carries the "Popular" badge. New and Remanufactured are all represented, and Remanufactured alone accounts for 20 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

2 Starter Motor Heat Shield parts for the 2021 Jeep Grand Cherokee come from MOPAR.

Listed part numbers: MOPAR 68371509AA and MOPAR 5035328AB.

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 68411966AB.