2019–2024 Dodge RAM 2500/3500 | Bulb Size Chart (Headlights, Fogs & More)

In this guide, we'll help you quickly and easily find the replacement bulb size(s) you need for your 2019, 2020, 2021, 2022, 2023, and 2024 RAM 2500 & 3500 (5th Generation). From the headlights to the tail lights and everything in between.

This guide covers all sub-models and trims (Tradesman, Big Horn, Lone Star, Laramie, Longhorn, Limited, and Power Wagon).

We organized all the bulbs into 4 lighting categories with easy-to-read charts. Select any category below to jump right to the bulb size chart you’re looking for:

• Headlight Bulb Sizes
• Fog Light Bulb Sizes
• Brake & Tail Light Sizes
• Turn Signal & Marker Bulb Sizes

2019–2024 RAM 2500/3500 – Headlight Bulb Sizes (Low & High Beam)

⚠️ Reminder for Big Horn / Lone Star Owners:

From 2019–2024, the Ram 2500 Big Horn/Lone Star trims may come equipped with either halogen or factory LED fog lights depending on the specific package. Please double-check your specific truck before purchasing replacement bulbs. You can confirm by visually inspecting the headlight housing (reflector vs. projector lens), checking your owner’s manual, or verifying with your VIN.

2019 to 2024 RAM 2500/3500 - Fog Light Bulb Sizes

⚠️ Reminder for Big Horn / Lone Star Owners:

From 2019–2024, the Ram 2500 Big Horn/Lone Star trims may come equipped with either halogen or factory LED fog lights depending on the specific package. Please double-check your specific truck before purchasing replacement bulbs. You can confirm by visually inspecting the fog light housing (reflector vs. LED module), checking your owner’s manual, or verifying with your VIN.

2019 to 2024 RAM 2500/3500 - Brake & Tail Lights Bulb Sizes

⚠️ Reminder for Big Horn / Lone Star Owners:

From 2019–2024, the Ram 2500 Big Horn/Lone Star trims may come equipped with either halogen or factory LED brake & tail lights depending on the specific package. Please double-check your specific truck before purchasing replacement bulbs. You can confirm by visually inspecting the tail light housing (bulb-based vs. full LED assembly), checking your owner’s manual, or verifying with your VIN.

2019 to 2024 RAM 2500/3500 – Turn Signal & Marker Bulb Sizes

Upgrading Your RAM 2500/3500 Lighting – Tips & Recommendations

Deciding which lights to upgrade first on your Ram can significantly enhance both safety and aesthetics. Based on performance impact and popularity within the Ram community, here’s a prioritized guide and the compelling advantages of choosing LED replacements.

1. Priority 1: Low Beam Headlights (The Essential Upgrade)

• Why Upgrade First? Your low beams are your primary illumination for nightly driving. Replacing the weak stock halogen bulbs with LEDs is the single most impactful upgrade you can make. It directly confronts the common complaint of poor visibility on dark roads and trails.
• LED Advantages:
  • Massive Visibility Boost: Experience a jump from ~1,200 lumens to 5,000+ lumens (or higher), casting a wider, brighter, and farther-reaching beam of crisp white light (often 6000K). This drastically improves peripheral vision and long-range obstacle spotting.
  • Enhanced Safety: See more of the road ahead and be seen more clearly by other drivers.
  • Modern Look: The clean, white light immediately updates the front-end appearance of your Ram.
  • Key Consideration: For optimal results and to avoid blinding other drivers, choose LEDs specifically engineered to project a proper beam pattern from reflector housings, like the Lasfit Pro-DC series for 2019-2024 models.

2. Priority 2: Fog Lights

• Why Upgrade? If your trim (like some Big Horn or Lone Star models) came with halogen fog lights, upgrading them to LED complements your new low beams.
• LED Advantages:
  • Improved Bad-Weather Performance: LED fog lights can provide better side-scatter illumination in fog, rain, or snow compared to halogens, cutting through glare more effectively.
  • Aesthetic Cohesion: Matching the white color temperature of your LED low beams creates a unified, modern front-end look.
  • Note: Ensure the LED fog light bulbs are a direct plug-and-play replacement and designed for your specific housing.

3. Priority 3: Brake & Tail Lights

• Why Upgrade? While often functional, upgrading halogen brake/tail lights (often 7443 bulbs) to LED is a significant safety and style enhancement.
• LED Advantages:
  • Faster Response Time: LEDs illuminate instantly, which can provide crucial extra milliseconds of warning to drivers behind you when you brake, potentially preventing rear-end collisions.
  • Increased Brightness: LED brake lights are often brighter and more noticeable than their halogen counterparts, especially in daylight.
  • Longevity & Style: LEDs last immensely longer and contribute to a more modern look from all angles.
  • Important: For turn signal applications, you will likely need to install load resistors to prevent hyper-flashing (rapid blinking) on your dashboard due to the lower power draw of LEDs.

4.Why LED is the Superior Choice: A Quick Recap

• Unmatched Brightness: Dramatically outperform halogens in lumen output.
• Enhanced Safety: Improve your ability to see and be seen.
• Longer Lifespan: Rated for 30,000+ hours, often outlasting your vehicle.
• Energy Efficiency: Draw less power, reducing strain on your electrical system.
• Instant On: No warm-up time, unlike HIDs.

Pro Tip: Always verify your current bulb type (halogen vs. factory LED) before purchasing replacements. For complex assemblies like full LED projector headlights, replacement typically involves the entire unit rather than just a bulb. For most owners, starting with a high-quality LED headlight bulb upgrade is the most effective and rewarding first step.