For most 2019 Hyundai Tucson models equipped with halogen headlights, the common replacement bulb sizes are H11 for low beams, 9005 for high beams, and H11 for fog lights. Rear lighting typically uses 3157 for tail/brake/turn, while reverse lights use 921. Front turn signals are usually 7440, with rear turn signals often 7443. If your Tucson has LED headlights or an HID setup, those assemblies may not use replaceable bulbs. These sizes can vary by trim and market, so verify with your manual or parts diagram before buying.
Details by lighting function
The sizes above cover the most frequently encountered bulb placements on a 2019 Tucson with halogen lighting. To avoid buying the wrong bulb, check the exact location and confirm the base type on your vehicle or in the owner’s manual.
Common bulb sizes you’ll encounter
The following list identifies typical bulbs by function for halogen-equipped 2019 Hyundais Tucson. Use this as a baseline, but verify for your specific trim and region.
- Headlights — Low beam: H11
- Headlights — High beam: 9005 (HB3)
- Front fog lights: H11
- Front turn signals: 7440
- Rear turn signals: 7443
- Tail lights / Brake lights: 3157 (dual-filament for tail/stop)
- Reverse lights: 921
- Parking lights / daytime running lights (where applicable): 194
Note: Some trims or regional specifications may use different bulb types or LEDs for certain functions. Always confirm with the owner’s manual or a Hyundai parts diagram for your exact vehicle configuration.
How to verify the exact bulb sizes on your Tucson
The following steps help ensure you buy the correct bulbs for your specific car, especially if you’re seeing discrepancies between sources or your version has non-halogen lighting.
- Consult the owner’s manual or the Hyundai official parts catalog for your VIN. The catalog lists exact part numbers and bulb types per location.
- Inspect the bulb directly by removing the cover or accessing the headlight/fog light housing to read the base type and size marked on the bulb itself.
- Know your market: some regions offered LED/HID headlamps as standard or optional equipment, which use different maintenance paths and bulbs or may be non-serviceable.
- If in doubt, bring the old bulb to an auto parts store or contact a Hyundai dealer; many retailers can read the base and confirm compatibility quickly.
Following these steps reduces the risk of purchasing incorrect bulbs and helps ensure your Tucson’s lighting performance remains reliable.
Additional tips for bulb replacement
Before you replace bulbs, power off the vehicle and allow any installed bulbs to cool. Wear gloves or use a clean rag to handle bulbs, as oils from skin can shorten bulb life. If you’re replacing multiple bulbs (e.g., tail lights and turn signals) at once, it’s often sensible to replace them in pairs to ensure consistent brightness and color temperature across the rear lighting cluster.
Summary
The 2019 Hyundai Tucson’s most common halogen bulb sizes are typically H11 for low beams, 9005 for high beams, H11 for fogs, 7440 for front turn signals, 7443 for rear turn signals, 3157 for tail/brake, and 921 for reverse. Always confirm with your owner’s manual or a Hyundai parts diagram, especially if your trim uses LED/HID headlights or has regional variations. If you need help locating the exact bulbs for your VIN, I can help you look up the precise specifications based on your trim and market.