2021 Ram 1500 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

21 Alternator / Generator parts are listed for the 2021 Ram 1500, from MOPAR, WAI GLOBAL, REMY and 4 other brands. MOPAR 56029764AA carries the "Popular" badge.

In the New grade, MOPAR, WAI GLOBAL, BOSCH and 2 other brands supply 12 parts: brand-new units rather than rebuilt ones. A representative part number is MOPAR 56029764AA.

In the Remanufactured grade, FVP, MOPAR, REMY and 2 other brands supply 9 parts: factory-rebuilt units with new wear components. A representative part number is FVP 10381.

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

18 Battery parts for the 2021 Ram 1500 come from 9 brands — ACDELCO, DEKA, FVP and 6 other brands. The "Popular" part is DEKA 9A49.

In the AGM (Extended Life) grade, ACDELCO, DEKA, FVP and 5 other brands supply 16 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 9A49.

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 FT89049.

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 2021 Ram 1500.

Listed part numbers: MOPAR 68606646AA and MOPAR 68603896AA.

This table covers the Battery covers. Read more

One part is listed for the 2021 Ram 1500 — MOPAR 4610380AA.

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

3 Battery Current Sensor parts are listed for the 2021 Ram 1500, from MOPAR and STANDARD MOTOR PRODUCTS.

Part numbers include MOPAR 68289207AC, MOPAR 68318616AC 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

MOPAR supplies both parts for the 2021 Ram 1500.

This group includes MOPAR 5033397AE and MOPAR 68494324AA.

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

This group shows a single part: MOPAR 68598616AA.

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

4 Battery Terminal Protector parts for the 2021 Ram 1500 come from MOPAR.

Listed part numbers: MOPAR 68436638AA, MOPAR 68477630AA and MOPAR 68164628AA, plus the other parts above.

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

2 Battery Tray parts for the 2021 Ram 1500 come from MOPAR.

Part numbers include MOPAR 68292465AD and MOPAR 68095940AF.

This table covers the Battery Vent tubes. Read more

One part is listed for the 2021 Ram 1500 — MOPAR 68334705AB.

This table covers the Door control modules. Read more

5 Door Control Module parts for the 2021 Ram 1500 come from MOPAR. The "Popular" part is MOPAR 68225103AD.

Listed part numbers: MOPAR 68225103AD, MOPAR 68517699AA and MOPAR 68225102AD, 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

One part is listed for the 2021 Ram 1500 — MOPAR 68299057AD.

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

17 Fuse parts for the 2021 Ram 1500 come from 2 brands — MOPAR and BUSSMANN. The "Popular" part is MOPAR 68100746AB.

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 and BUSSMANN — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. MOPAR 68100746AB is listed in this group.

In the 25 Amp grade, BUSSMANN and MOPAR supply 2 parts: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS25.

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 3 options from MOPAR and BUSSMANN — 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, 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.

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

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

MOPAR supplies the 7 Fuse Block parts for the 2021 Ram 1500. MOPAR 68322371AD carries the "Popular" badge.

Part numbers include MOPAR 68322371AD, MOPAR 68467637AA and MOPAR 68467641AA, among others listed above.

This table covers the Fuse Box covers. Read more

This group shows a single part: MOPAR 68465573AA.

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

2 Horn parts for the 2021 Ram 1500 come from MOPAR.

Listed part numbers: MOPAR 68297891AC and MOPAR 68290864AC.

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

2 Hybrid Battery parts for the 2021 Ram 1500 come from MOPAR.

This group includes MOPAR 68269816AC and MOPAR 68269817AC.

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

MOPAR supplies the 3 Keyless Entry Module / Receiver parts for the 2021 Ram 1500.

This group includes MOPAR 56046957AA, MOPAR 56046958AA and MOPAR 52112204AB.

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

8 Keyless Entry Remote parts are listed for the 2021 Ram 1500, from DORMAN and MOPAR. MOPAR 56046955AG carries the "Popular" badge.

Listed part numbers: MOPAR 56046955AG, MOPAR 56046956AJ and DORMAN 99257ST, plus the other parts above.

This table covers the replacement shells for the key fob. Read more

One part is listed for the 2021 Ram 1500 — DORMAN 95643.

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

4 Park Assist (PAS) Camera Module parts for the 2021 Ram 1500 come from MOPAR.

This group includes MOPAR 68464879AH, MOPAR 68464879AC and MOPAR 68464879AG and the remaining 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

7 Parking Aid Sensor parts are listed for the 2021 Ram 1500, from DORMAN, STANDARD MOTOR PRODUCTS and MOPAR. DORMAN 684102 carries the "Popular" badge.

This group includes DORMAN 684102, STANDARD MOTOR PRODUCTS PPS110 and DORMAN 684126 and the remaining 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

6 Parking Aid Sensor Bracket parts are listed for the 2021 Ram 1500, from TECHPRO, WESTIN and DORMAN. DORMAN 42446 carries the "Popular" badge.

Listed part numbers: DORMAN 42446, TECHPRO CH1074106 and TECHPRO CH1074105, plus the other parts above.

This table covers the Power inverters. Read more

MOPAR supplies both parts for the 2021 Ram 1500.

Part numbers include MOPAR 56046934AA and MOPAR 68312754AC.

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

This group shows a single part: MOPAR 68256850AA.

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

MOPAR supplies both parts for the 2021 Ram 1500.

Part numbers include MOPAR 68149325AC and MOPAR 68298468AA.

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 both parts for the 2021 Ram 1500.

Listed part numbers: MOPAR 68454413AA and MOPAR 68493608AA.

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

18 Starter Motor parts are listed for the 2021 Ram 1500, from MOPAR, WAI GLOBAL, TYC and 5 other brands. TYC 110879 carries the "Popular" badge.

New: 6 parts, from TYC, MOPAR and WAI GLOBAL. A representative part number is TYC 110879.

Remanufactured: 12 parts, from PURE ENERGY, FVP, MOPAR and 4 other brands. A representative part number is PURE ENERGY 19554.

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

This group shows a single part: MOPAR 68371509AA.