Bosch Range HBN4852 Parts

This 120V, 40W oven bulb provides interior lighting so you can check cooking progress without opening the oven door. Designed to match OEM fit and heat-resistance for use in many ranges and wall ovens. What it does:

• Replaces a burned or broken oven light to restore interior illumination.
• Helps you see inside the oven without opening the door, reducing heat loss.
• Appropriate for ovens that require a 120V, 40W heat-rated incandescent lamp.
• Common symptoms it fixes: no light when the door is closed, flickering or dim oven light.

• Disconnect power before replacing the bulb to avoid shock—turn off at the breaker or unplug the appliance.
• Allow the old bulb and oven to cool completely before handling.
• Use a cloth or glove when installing to avoid oils from skin shortening bulb life.
• Follow the appliance manual for bulb access.

This high-temperature 220V, 15-watt oven light bulb restores bright interior lighting so you can monitor cooking progress without opening the door. It's built for sustained heat and replaces a burned-out or flickering lamp.

• Illuminates the oven cavity during baking, broiling, and cleaning cycles
• High-temperature design for continuous heat exposure
• Common failure symptoms: no light when switched on, dim or intermittent illumination, blackened glass, or a broken filament

• Disconnect power at the breaker and allow the oven to cool completely
• Remove the light lens/cover; unthread and remove the old bulb
• Thread in the new bulb of the same voltage and wattage; do not overtighten
• Reinstall the cover, restore power, and test the light