2018 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

59 Alternator / Generator parts are listed for the 2018 Ram 1500, from REMY, TERREPOWER, PURE ENERGY and 9 other brands. MOPAR 4801779AG carries the "Popular" badge. Grades run from New through Remanufactured; Remanufactured is the most populated section, led by FVP, PURE ENERGY, REMY and 5 other brands.

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 Ram 1500 come from 3 brands — CONTINENTAL, DORMAN and LITENS.

This group includes CONTINENTAL 49961, DORMAN 300421 and LITENS 920051A.

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 2018 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

One part is listed for the 2018 Ram 1500 — MOPAR 5059001AC.

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 are listed for the 2018 Ram 1500, from MOPAR and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2018 1500.

Part numbers include MOPAR 68318616AC and STANDARD MOTOR PRODUCTS BSC15.

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 2018 Ram 1500. All of them fit every engine offered in the 2018 1500.

Part numbers include MOPAR 5033397AE and MOPAR 68494324AA.

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

This group shows a single part: MOPAR 68164628AA.

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

This group shows a single part: MOPAR 68095940AF.

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

2 Circuit Breaker parts for the 2018 Ram 1500 come from MOPAR.

Part numbers include MOPAR 68148874AA and MOPAR 4692143AA.

This table covers the Door control modules. Read more

4 Door Control Module parts for the 2018 Ram 1500 come from MOPAR. Every part fits all 3 engine options (3.0L V6 DIESEL Turbocharged, 3.6L V6 and 5.7L V8).

This group includes MOPAR 68225102AD, MOPAR 68225103AD and MOPAR 68225100AD and the remaining 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

13 Fuse parts for the 2018 Ram 1500 come from MOPAR. The "Popular" part is MOPAR 68241002AA. 1 part fits every engine; the other 12 are engine-specific.

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 68100731AB.

In the 100 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "100 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68260527AA.

The 125 Amp section lists 1 option from MOPAR — grouped under the catalog's "125 Amp" designation — the notes column spells out what sets them apart. MOPAR 68250096AA is listed in this group.

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 2 options from MOPAR — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. MOPAR 68202896AA 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 250 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "250 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 68241002AA.

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 1 option 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.

2 further parts sit outside the graded sections, with the same engine-level match.

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

2 Fuse Block parts are listed for the 2018 Ram 1500, from DORMAN and MOPAR. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include DORMAN 956356 and MOPAR 68322373AD.

This table covers the Fuse Box covers. Read more

This group shows a single part: MOPAR 68202821AA.

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

14 Horn parts for the 2018 Ram 1500 come from 2 brands — FIAMM and MOPAR. The "Popular" part is FIAMM 7210223. Every part fits all 3 engine options (3.0L V6 DIESEL Turbocharged, 3.6L V6 and 5.7L V8).

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 7 parts: built to original-equipment specification. A representative part number is FIAMM 7201223.

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

DORMAN supplies the 7 Keyless Entry Remote parts for the 2018 Ram 1500. DORMAN 99509ST carries the "Popular" badge. All of them fit every engine offered in the 2018 1500.

This group includes DORMAN 99509ST, DORMAN 99510ST and DORMAN 99262ST and the remaining parts above.

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

One part is listed for the 2018 Ram 1500 — DORMAN 92076.

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 2018 Ram 1500, from BOSCH, STANDARD MOTOR PRODUCTS, AUTOTECNICA and 4 other brands. BOSCH 0263043552 carries the "Popular" badge. All of them fit every engine offered in the 2018 1500.

Listed part numbers: BOSCH 0263043552, STANDARD MOTOR PRODUCTS PPS45 and AUTOTECNICA CY1317815, 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

7 Parking Aid Sensor Bracket parts are listed for the 2018 Ram 1500, from TECHPRO, WESTIN and DORMAN. DORMAN 42446 carries the "Popular" badge. All of them fit every engine offered in the 2018 1500.

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

This table covers the Power inverters. Read more

One part is listed for the 2018 Ram 1500 — MOPAR 56046934AA.

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

4 Powertrain Control Module (PCM) parts for the 2018 Ram 1500 come from MOPAR.

This group includes MOPAR 5150767AD, MOPAR 68243304AB and MOPAR 68243305AB 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 2018 Ram 1500 — MOPAR 68149325AC.

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 Ram 1500 — 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

12 Speed Sensor parts for the 2018 Ram 1500 come from 10 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, DORMAN and 7 other brands. The "Popular" part is DORMAN 917647. 3 parts fit every engine; the other 9 are engine-specific.

The Economy section lists 7 options from DORMAN, AUTOTECNICA, BECK/ARNLEY and 4 other brands — the catalog's value-priced group. DORMAN 917647 is listed in this group.

The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 24091042 is listed in this group.

Standard Replacement: 4 parts, from DELPHI, MOPAR, STANDARD MOTOR PRODUCTS and 1 other brand. A representative part number is DELPHI SS11424.