2021 Ram 2500 Electrical Bulb & Socket Parts

This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

7 Back Up / Reverse Lamp Bulb parts for the 2021 Ram 2500 come from 3 brands — SYLVANIA, WAGNER and PHILIPS. The "Popular" part is PHILIPS 1156LL. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

In the Extended Life grade, PHILIPS, SYLVANIA and WAGNER supply 3 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is PHILIPS 1156LL.

In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA supplies 1 part: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 7440ST.

The LED (instant-on, long life, energy-saving) section lists 1 option from WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. WAGNER 7440WLED is listed in this group.

In the Standard Replacement grade, SYLVANIA and WAGNER supply 2 parts: built to original-equipment specification. A representative part number is SYLVANIA 7440.

Part numbers include PHILIPS 1156LL and SYLVANIA 7440LL, among others listed above.

This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

8 Brake Light Bulb parts for the 2021 Ram 2500 come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA 7443LL. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 7443LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 7443ST.

The LED (instant-on, long life, energy-saving) section: 3 options from SYLVANIA and WAGNER. SYLVANIA 7443RSL is listed in this group.

Standard Replacement: 2 parts, from WAGNER and SYLVANIA. A representative part number is WAGNER 7443.

Part numbers include SYLVANIA 7443LL and SYLVANIA 7443ST, among others listed above.

This table covers the bulbs in the high-mount stop lamp. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

3 Brake Light Bulb - High Mount parts for the 2021 Ram 2500 come from SYLVANIA. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 921LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 921ST.

Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 921.

Listed part numbers: SYLVANIA 921LL, SYLVANIA 921ST and SYLVANIA 921.

This table covers the sockets that hold a Brake Light bulb. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket. Read more

This group shows a single part: DORMAN 645118.

This table covers the replacement bulbs for the Cornering Lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

This group shows a single part: PHILIPS 1156LL.

This table covers the bulbs in the dome lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Dome Light Bulb parts for the 2021 Ram 2500 come from SYLVANIA. The "Popular" part is SYLVANIA 578LL. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 578LL.

The LED (instant-on, long life, energy-saving) section: 4 options from SYLVANIA. SYLVANIA 578SL is listed in this group.

Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 578.

This group includes SYLVANIA 578LL, SYLVANIA 578SL and SYLVANIA 578BLED and the remaining parts above.

This table covers the replacement bulbs for the Door Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Door Panel Light Bulb parts are listed for the 2021 Ram 2500, from SYLVANIA and HELLA. SYLVANIA 168LL carries the "Popular" badge. All of them fit every engine offered in the 2021 2500.

The Extended Life section: 2 options from SYLVANIA and HELLA. SYLVANIA 168LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 168ST is listed in this group.

LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 168SL.

The Standard Replacement section: 2 options from HELLA and SYLVANIA. HELLA 168 is listed in this group.

Listed part numbers: SYLVANIA 168LL and SYLVANIA 168ST, plus the other parts above.

This table covers the bulbs in the fog and driving lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

14 Fog / Driving Lamp Bulb parts are listed for the 2021 Ram 2500, from SYLVANIA, WAGNER and HELLA. SYLVANIA H11LL carries the "Popular" badge. All of them fit every engine offered in the 2021 2500.

The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA H11LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 6 options from SYLVANIA and WAGNER. SYLVANIA H11XV is listed in this group.

LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11LEDSP.

The Standard Replacement section: 3 options from SYLVANIA, WAGNER and HELLA. SYLVANIA H11 is listed in this group.

This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb. Read more

23 Headlamp Bulb parts are listed for the 2021 Ram 2500, from SYLVANIA, WAGNER and HELLA. SYLVANIA H11LL carries the "Popular" badge. All of them fit every engine offered in the 2021 2500.

The Extended Life section: 3 options from SYLVANIA and WAGNER. SYLVANIA H11LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 12 options from SYLVANIA and WAGNER. SYLVANIA 9005XV is listed in this group.

LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 9005SL.

The Standard Replacement section: 7 options from WAGNER, HELLA and SYLVANIA. HELLA 9005 is listed in this group.

This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket. Read more

7 Headlamp Socket parts are listed for the 2021 Ram 2500, from STANDARD MOTOR PRODUCTS, ACDELCO and WALKER PRODUCTS. STANDARD MOTOR PRODUCTS HP3835 carries the "Popular" badge. All of them fit every engine offered in the 2021 2500.

Part numbers include STANDARD MOTOR PRODUCTS HP3835, STANDARD MOTOR PRODUCTS S553 and ACDELCO LS255, among others listed above.

This table covers the LED Bulb adapters. Read more

WAGNER supplies both parts for the 2021 Ram 2500. All of them fit every engine offered in the 2021 2500.

Part numbers include WAGNER CB900590069012 and WAGNER CBH8H11H16.

This table covers the bulbs that light the license plate. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 License Plate Lamp Bulb parts for the 2021 Ram 2500 come from SYLVANIA. The "Popular" part is SYLVANIA 194. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.

The LED (instant-on, long life, energy-saving) section: 2 options from SYLVANIA. SYLVANIA 194BSL is listed in this group.

Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194.

Listed part numbers: SYLVANIA 194, SYLVANIA 194LL and SYLVANIA 194ST, plus the other parts above.

This table covers the bulbs in the map / reading lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

This group shows a single part: PHILIPS 2122.

This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Parking Lamp Bulb parts are listed for the 2021 Ram 2500, from SYLVANIA, WAGNER and PHILIPS. PHILIPS 7444NALL carries the "Popular" badge. All of them fit every engine offered in the 2021 2500.

The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 7444NALL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7443ST is listed in this group.

The Standard Replacement section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7443 is listed in this group.

Listed part numbers: PHILIPS 7444NALL and SYLVANIA 7443LL, plus the other parts above.

This table covers the replacement bulbs for the Roof Marker & Identification Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

3 Roof Marker & Identification Light Bulb parts are listed for the 2021 Ram 2500, from SYLVANIA and PHILIPS. All of them fit every engine offered in the 2021 2500.

The Extended Life section: 2 options from PHILIPS and SYLVANIA. PHILIPS 194NALL is listed in this group.

The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 194NA is listed in this group.

Listed part numbers: PHILIPS 194NALL and SYLVANIA 194NA, plus the other parts above.

This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 Side Marker Light Bulb parts for the 2021 Ram 2500 come from SYLVANIA. The "Popular" part is SYLVANIA 194. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.

The LED (instant-on, long life, energy-saving) section: 2 options from SYLVANIA. SYLVANIA 194BSL is listed in this group.

Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194.

Listed part numbers: SYLVANIA 194, SYLVANIA 194LL and SYLVANIA 194ST, plus the other parts above.

This table covers the bulbs in the step and courtesy lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 Step / Courtesy Light Bulb parts for the 2021 Ram 2500 come from 2 brands — SYLVANIA and HELLA. The "Popular" part is HELLA 2825. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825ST.

The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 2825SL is listed in this group.

Standard Replacement: 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA 2825.

Listed part numbers: HELLA 2825, SYLVANIA 2825LL and SYLVANIA 2825ST, plus the other parts above.

This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

11 Tail Lamp Bulb parts are listed for the 2021 Ram 2500, from PHILIPS, SYLVANIA, WAGNER and 1 other brand. SYLVANIA 7443LL carries the "Popular" badge. 10 parts fit every engine; the other 1 is engine-specific.

The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7443LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7443ST is listed in this group.

LED (instant-on, long life, energy-saving): 4 parts, from PHILIPS and WAGNER. A representative part number is PHILIPS 7440RLED.

The Standard Replacement section: 4 options from HELLA, WAGNER, PHILIPS and 1 other brand. HELLA 2825 is listed in this group.

This table covers the Tail Lamp Socket / Connector plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

2 Tail Lamp Socket / Connector Plate parts are listed for the 2021 Ram 2500, from DORMAN and WELLS. All of them fit every engine offered in the 2021 2500.

Part numbers include DORMAN 645118 and WELLS 1P3339.

This table covers the bulbs in the trunk or cargo-area lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

One part is listed for the 2021 Ram 2500 — HELLA 2825.

This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Turn Signal Lamp Bulb parts for the 2021 Ram 2500 come from 4 brands — SYLVANIA, WAGNER, PHILIPS and 1 other brand. The "Popular" part is PHILIPS 7444NALL. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Extended Life: 3 parts, from PHILIPS, SYLVANIA and WAGNER. A representative part number is PHILIPS 7444NALL.

Standard Replacement: 2 parts, from HELLA and WAGNER. A representative part number is HELLA 7440NA.

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

This group includes PHILIPS 7444NALL and the remaining parts above.

This table covers the sockets that hold a Turn Signal Lamp bulb. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket. Read more

2 Turn Signal Lamp Socket parts for the 2021 Ram 2500 come from 2 brands — DORMAN and WELLS. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.

Listed part numbers: DORMAN 645118 and WELLS 1P3339.