2019 Ram ProMaster Bulb Sizes, Replacements, & Common Issues
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference
| Location | Bulb Size | Type |
|---|---|---|
| Low Beam Headlight | H7 | Halogen |
| High Beam Headlight | H1 | Halogen |
| Fog Light | H11 | Halogen |
| Front Turn Signal | WY21W | Halogen (Amber) |
| Rear Turn Signal | PY21W | Halogen (Amber) |
| Brake Light | P21W | Halogen |
| Tail Light | P21W | Halogen |
| Reverse Light | P21W | Halogen |
| License Plate | W5W | Halogen |
| Front Side Marker | W5W | Halogen |
| Rear Side Marker | W5W | Halogen |
| Dome Light (Front) | 578 | Halogen Festoon |
| Map Light (Front) | 194 | Halogen Wedge |
| Cargo Area (Rear) | 578 | Halogen Festoon |
Note: The 2019 Ram ProMaster primarily utilizes halogen bulbs across all lighting functions. There are no OEM LED headlight or fog light options for this model year and generation.
The 2019 Ram ProMaster is a popular choice for commercial use and recreational conversions, known for its versatile cargo space and front-wheel-drive platform. When it comes to maintaining its lighting system, understanding the correct bulb sizes is crucial for both safety and compliance. This guide provides a comprehensive overview of the bulb sizes for your 2019 ProMaster, along with considerations for upgrades and common troubleshooting tips.
Most 2019 Ram ProMaster models come equipped with a full suite of halogen lighting. Unlike some passenger vehicles, there are no factory-installed LED headlight or fog light options for this particular model year. This means that if you're looking for brighter, more energy-efficient lighting, an aftermarket LED upgrade will be your path.
LED vs. Halogen Upgrade Considerations
Upgrading your 2019 ProMaster's halogen bulbs to LEDs can offer numerous benefits, including increased brightness, a whiter light output, longer lifespan, and lower power consumption. However, there are several factors to consider before making the switch:
- CANBUS Errors: Modern vehicles, including the ProMaster, use a Controller Area Network Bus (CANBUS) system to monitor various electrical components, including lighting. When you replace a halogen bulb with an LED, the lower power draw of the LED can trick the CANBUS system into thinking the bulb is out or malfunctioning, leading to
More specs for the 2019 Ram ProMaster
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2019 Ram ProMaster Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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