The Chevrolet Silverado 2500HD, known for its robustness, requires high-quality lighting for road safety and optimal visibility. This guide provides the bulb sizes needed for different light fixtures on the 2003-2006 Chevrolet Silverado 2500HD.

If you are looking to find the ideal LED bulbs for your Chevrolet Silverado 2500HD, make sure to utilize the SEALIGHT LED Automotive Bulb Finder for an even more convenient search.

Part 1: Bulb Size Chart for 2003-2006 Chevrolet Silverado 2500HD

Please refer to the table below for a comprehensive list of bulb sizes for the 2003-2006 Chevrolet Silverado 2500HD.

Please note that it's always best to check your vehicle's owner's manual or your existing bulbs to confirm the correct sizes.

Related guides:
2007-2014 Chevrolet Silverado 2500HD Bulb Sizes - Headlight, Fog Light & More
2015-2020 Chevrolet Silverado 2500HD Bulb Sizes - Headlight, Fog Light & More

Part 2: LED Lighting Upgrades for Your Silverado 2500HD

For those considering an upgrade to the LEDs lighting system of their Silverado 2500HD (2003-2006), look no further than SEALIGHT. Below we have picked some popular LED upgrades.

Headlight Bulbs

For the low beam and high beam headlights of 2003-2006 Chevy Silverado 1500 HD, the compatible bulb size is 9006 and 9005 respectively.

We recommend the SEALIGHT S1 9005 9006 60W 6000K White IP67 LED Headlight Bulbs Combo. Fanless design, ‎14,000LM/set. They are known for their superior brightness and extended lifespan.

-14%

Sealight^®

S1 9005/HB3 9006/HB4 60W 6000K White IP67 LED Headlight Bulbs 2 Pairs

4.75 star rating

(742)

Fog Light Bulbs

The fog lights on your 2003-2006 Silverado 2500HD utilize a 9145 bulb. To improve visibility during foggy conditions, consider SEALIGHT F1 6000K 4000LM White LED Fog Light Bulbs. These LED bulbs fit for bulb sizes H10, 9140 and 9145.

-18%

Sealight^®

F1 H10/9145/9140 LED Fog Light Bulbs 6000K White 20W 6000LM IP67 2PCS

4.73 star rating

(2052)

Brake Lights and Back Up Lights

Your 2003-2006 Silverado 2500HD uses a 3157 bulb for brake lights and reverse lights. SEALIGHT J2 3157 LEDs are excellent choice for these components, offering bright, responsive illumination.

-8%

Sealight^®

SLJ2 3157/3156/3057/T25 LED Backup Reverse Light Brake Tail Light Bulbs 8W 1800LM 6000K White 2PCS

4.67 star rating

(61)

Small Lamps

The small lamps in 2003-2006 Chevrolet Silverado 2500HD, including Courtesy, Glove Box, License Plate lights, etc, use the bulb size 194. You can consider upgrade these lights to LEDs as well.

Sealight^®

SLJ2 T10/194/168/W5W LED License Plate Light Dome/Map/Trunk Light Bulbs 5W 1200LM 6000K White 6PCS

4.78 star rating

(49)

Last Words

At SEALIGHT, we simplify finding the right LED bulbs for your 2003-2006 Chevrolet Silverado 2500 HD. Get comprehensive information on sizes and options, and enjoy free shipping and 90-day returns on all orders.