This page lists 40 electrical bulb & socket parts for the 2019 Ram 4000, across 14 part types, covering both the 5.7L V8 and the 6.4L V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 2019 Ram 4000, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Headlamp Socket (7 parts), Back Up / Reverse Lamp Bulb (5 parts) and Tail Lamp Bulb (5 parts). The other 11 part types cover the remaining 23 parts.
The 2019 Ram 4000 was sold with both the 5.7L V8 and the 6.4L V8. All 40 parts on this page fit every engine.
5 brands supply electrical bulb & socket parts for the 2019 Ram 4000, led by HELLA (26 parts), PHILIPS (7 parts) and STANDARD MOTOR PRODUCTS (4 parts), plus 2 more brands. Quality grades include Standard Replacement, Extended Life and LED.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2019 Ram 4000. 4 parts have it, including HELLA 921 (Back Up / Reverse Lamp Bulb) and STANDARD MOTOR PRODUCTS HP3835 (Headlamp Socket). Each part number opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 921LL | 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| HELLA Fits: all 2019 4000 engines | DE3175LL | 🇲🇽 MX | IncandescentLong Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 4000 engines | 921 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 7440 | 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 921NA | 🇲🇽 MX | IncandescentNatural Amber | View on Amazon |
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.
5 Back Up / Reverse Lamp Bulb parts for the 2019 Ram 4000 come from HELLA. The "Popular" part is HELLA 921. Every part fits both the 5.7L V8 and the 6.4L V8.
In the Extended Life grade, HELLA supplies 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is HELLA 921LL.
In the Standard Replacement grade, HELLA supplies 3 parts: built to original-equipment specification. A representative part number is HELLA 921.
Part numbers include HELLA 921, HELLA 921LL and HELLA DE3175LL, among others listed above.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 3157LL | 🇲🇽 MX | Incandescent27/8W | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 3157RLED | 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 3157 | 🇲🇽 MX | Incandescent27/7W | View on Amazon |
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.
3 Brake Light Bulb parts for the 2019 Ram 4000 come from 2 brands — HELLA and PHILIPS. Every part fits both the 5.7L V8 and the 6.4L V8.
Extended Life: 1 part, from HELLA. A representative part number is HELLA 3157LL.
The LED (instant-on, long life, energy-saving) section lists 1 option from PHILIPS — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 3157RLED is listed in this group.
Standard Replacement: 1 part, from HELLA. A representative part number is HELLA 3157.
This group includes HELLA 3157LL, PHILIPS 3157RLED and HELLA 3157.
Brake Light Bulb - High Mount
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 921LL | 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| HELLA Fits: all 2019 4000 engines | DE3175LL | 🇲🇽 MX | IncandescentLong Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 921 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 921NA | 🇲🇽 MX | IncandescentNatural Amber | View on Amazon |
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.
4 Brake Light Bulb - High Mount parts for the 2019 Ram 4000 come from HELLA. Every part fits both the 5.7L V8 and the 6.4L V8.
Extended Life: 2 parts, from HELLA. A representative part number is HELLA 921LL.
Standard Replacement: 2 parts, from HELLA. A representative part number is HELLA 921.
Part numbers include HELLA 921LL, HELLA DE3175LL and HELLA 921, among others listed above.
Dome Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 578LL | 🇲🇽 MX | Longer Life | View on Amazon |
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.
This group shows a single part: PHILIPS 578LL.
Fog / Driving Lamp Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | H1120 | 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-2 | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 226971541 | 🇲🇽 MX | Socket Type Bulb: PGJ19-2 | View on Amazon |
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.
HELLA supplies both parts for the 2019 Ram 4000. All of them fit every engine offered in the 2019 4000.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from HELLA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. HELLA H1120 is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from HELLA. A representative part number is HELLA 226971541.
Listed part numbers: HELLA H1120 and HELLA 226971541.
Headlamp Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | H1120 | 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-2 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 9005 | 🇲🇽 MX | HalogenSocket Type Bulb: P20D | View on Amazon |
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.
HELLA supplies both parts for the 2019 Ram 4000. All of them fit every engine offered in the 2019 4000.
The Extra Bright (improved visibility, but shorter life) section: 1 option from HELLA. HELLA H1120 is listed in this group.
The Standard Replacement section: 1 option from HELLA. HELLA 9005 is listed in this group.
Part numbers include HELLA H1120 and HELLA 9005.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2019 4000 engines | HP3835 | 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2019 4000 engines | S553 | 🇲🇽 MX | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
| ACDELCO Fits: all 2019 4000 engines | LS255 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Fits: all 2019 4000 engines | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2019 4000 engines | HP3970 | 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2019 4000 engines | S524 | 🇲🇽 MX | Weather Resistant: YES | View on Amazon |
| WALKER PRODUCTS Fits: all 2019 4000 engines | 2701125 | 🇲🇽 MX | with Halogen HeadlightsHigh Beam | View on Amazon |
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.
7 Headlamp Socket parts are listed for the 2019 Ram 4000, 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 2019 4000.
Part numbers include STANDARD MOTOR PRODUCTS HP3835, STANDARD MOTOR PRODUCTS S553 and ACDELCO LS255, among others listed above.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 194LL | 🇲🇽 MX | IncandescentLong Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 194 | 🇲🇽 MX | Brightness: 2.0 CPIncandescent | View on Amazon |
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.
2 License Plate Lamp Bulb parts for the 2019 Ram 4000 come from HELLA. Every part fits both the 5.7L V8 and the 6.4L V8.
Extended Life: 1 part, from HELLA. A representative part number is HELLA 194LL.
Standard Replacement: 1 part, from HELLA. A representative part number is HELLA 194.
Listed part numbers: HELLA 194LL and HELLA 194.
Map / Reading Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 578LL | 🇲🇽 MX | Longer Life | View on Amazon |
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.
This group shows a single part: PHILIPS 578LL.
Parking Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 7444NALL | 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
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.
One part is listed for the 2019 Ram 4000 — PHILIPS 7444NALL.
Roof Marker & Identification Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 194NALL | 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 194NA | 🇲🇽 MX | IncandescentBrightness: 1.5 CP | View on Amazon |
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.
2 Roof Marker & Identification Light Bulb parts are listed for the 2019 Ram 4000, from PHILIPS and HELLA. All of them fit every engine offered in the 2019 4000.
The Extended Life section: 1 option from PHILIPS. PHILIPS 194NALL is listed in this group.
The Standard Replacement section: 1 option from HELLA. HELLA 194NA is listed in this group.
Part numbers include PHILIPS 194NALL and HELLA 194NA.
Side Marker Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 2825 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 2825BL | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
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.
2 Side Marker Light Bulb parts for the 2019 Ram 4000 come from HELLA. Every part fits both the 5.7L V8 and the 6.4L V8.
Listed part numbers: HELLA 2825 and HELLA 2825BL.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 3157LL | 🇲🇽 MX | Incandescent27/8W | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 4000 engines | 3157RLED | 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 4000 engines | 2825 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 3157 | 🇲🇽 MX | Incandescent27/7W | View on Amazon |
| HELLA Fits: all 2019 4000 engines | 7440 | 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
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.
5 Tail Lamp Bulb parts are listed for the 2019 Ram 4000, from HELLA and PHILIPS. HELLA 2825 carries the "Popular" badge. All of them fit every engine offered in the 2019 4000.
The Extended Life section: 1 option from HELLA. HELLA 3157LL is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from PHILIPS. A representative part number is PHILIPS 3157RLED.
The Standard Replacement section: 3 options from HELLA. HELLA 2825 is listed in this group.
This group includes HELLA 2825, HELLA 3157LL and PHILIPS 3157RLED and the remaining parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 3157LL | 🇲🇽 MX | Incandescent27/8W | View on Amazon |
| PHILIPS Fits: all 2019 4000 engines | 7444NALL | 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 4000 engines | 3157 | 🇲🇽 MX | Incandescent27/7W | View on Amazon |
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.
3 Turn Signal Lamp Bulb parts for the 2019 Ram 4000 come from 2 brands — HELLA and PHILIPS. Every part fits both the 5.7L V8 and the 6.4L V8.
Extended Life: 2 parts, from HELLA and PHILIPS. A representative part number is HELLA 3157LL.
Standard Replacement: 1 part, from HELLA. A representative part number is HELLA 3157.
Part numbers include HELLA 3157LL, PHILIPS 7444NALL and HELLA 3157.
Buying Electrical Bulb & Socket Parts for a 2019 Ram 4000
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits both the 5.7L V8 and the 6.4L V8.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Headlamp Socket and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2019 Ram 4000?
Our catalog currently lists 40 electrical bulb & socket parts for the 2019 Ram 4000 across 14 subcategories and 5 brands, covering both the 5.7L V8 and the 6.4L V8. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2019 Ram 4000 engines?
No. On this page every electrical bulb & socket part fits both the 5.7L V8 and the 6.4L V8. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2019 Ram 4000?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2019 Ram 4000 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2019 Ram 4000?
Every part on this page already fits both the 5.7L V8 and the 6.4L V8. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2019 Ram 4000
Electrical Bulb & Socket Parts for Other Ram 4000 Years
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