Rear Fog Light Bulbs

Rear Fog Light Bulbs are an important part of a vehicle’s lighting system, designed to improve visibility in adverse weather conditions such as heavy fog, rain, and mist. Commonly referred to as fog light bulbs, they provide a bright rear-facing light that helps make your vehicle more visible to other road users when visibility is significantly reduced. Available in a variety of fitments and lighting technologies, these bulbs are engineered to deliver reliable performance and dependable illumination.

These bulbs are suitable for rear application use, including fog lamp rear installations and modern LED fog light bulbs upgrades. One of the most widely used fitments is P21W Bulbs, which are also available as P21W LED Bulbs. Equivalent references include 382 Bulbs, 1156 Bulbs, and 7506 Bulbs. These feature a single-contact pin design with opposite locating pins on the bayonet base, providing secure installation and dependable operation within compatible lamp holders.

Another popular option is the larger wedge-style W16W Bulbs, also available as W16W LED Bulbs. Equivalent fitments include 921 Bulbs, T15 Bulbs, and 955 Bulbs, which are commonly used across a range of rear lighting applications. Their wedge-base design allows for straightforward installation while maintaining consistent light output and long service life.

Rear Fog Light Bulbs are also available in dual-filament wedge fitments such as 580 Bulbs, T20 Bulbs, and 7443 Bulbs, alongside single-filament alternatives including W21W Bulbs, 582 Bulbs, and 7440 Bulbs. These bulb types are commonly fitted across a wide variety of vehicle manufacturers and lighting systems, ensuring broad compatibility.

Additional fitments include P21/5W Bulbs, 380 Bulbs, P21 Bulbs, 1157 Bulbs, and Bay15d. These feature a bayonet fitting with a dual-contact base and offset locating pins, with one pin positioned slightly higher than the other to ensure correct installation. We also stock 3157 Bulbs, while P27/7W is another recognised industry reference commonly associated with similar rear lighting applications.

Whether replacing a failed bulb or upgrading to a modern LED alternative, selecting the correct fitment helps maintain visibility, safety, and compliance in poor weather conditions. Our extensive range offers reliable solutions for a wide variety of vehicle makes and models, ensuring dependable rear fog light performance when it is needed most.