Keystone Cornering / Side Marker Light Assembly

Keystone Cornering & Side Marker Light Assemblies

When a cornering or side marker light gets cracked, faded, or stops functioning, restoring it quickly matters for both safety and legal compliance. Keystone has built a strong reputation as a go-to source for collision and lighting replacement parts, and their Cornering / Side Marker Light Assemblies reflect that same commitment to quality and precision fitment.

Why Keystone for Side Marker & Cornering Lights?

Federal Safety Compliance — A Keystone replacement side marker light assembly meets all federal motor safety standards. That means every assembly is built to the same performance benchmarks as the part that came on your vehicle originally, giving drivers and shop technicians alike the peace of mind that the repair will hold up to regulatory scrutiny.

True OEM-Equivalent Fitment — All products share the same form, fit, and function of the original part, and use original mounting points — so no drilling or modifications are needed for installation. This is a key advantage for body shops and DIY enthusiasts who need a clean, straightforward swap without cutting into sheet metal or bumper covers.

Broad Distribution Network — KAI (Keystone Automotive Industries) is the largest provider of new aftermarket vehicle collision replacement products, with sales, processing, and distribution facilities reaching most major markets in North America. That wide reach translates to consistent availability across a diverse range of vehicle makes and models, from domestic trucks and SUVs to import sedans.

What Are Cornering & Side Marker Light Assemblies?

Cornering lights and side marker lights are the small but critical lighting units mounted at the corners or sides of a vehicle's bumper or fender. They enhance visibility at intersections when turning, alert other drivers to the vehicle's width and position, and are required by federal law on most passenger cars and trucks sold in the United States. A complete assembly typically includes the housing, lens, and any necessary wiring connector — making it a ready-to-install replacement that restores both function and appearance.

A Wide-Ranging Aftermarket Portfolio

The automotive aftermarket is the largest market serviced by Keystone, encompassing all parts and accessories for replacement, appearance, comfort, convenience, safety, protection, and performance for nearly all car and truck makes and models. Within lighting specifically, Keystone offers assemblies spanning a wide range of vehicle applications — including front driver-side and passenger-side positions, amber lens variants for in-bumper placement, and units designed for popular platforms like the Dodge Charger, Jeep Cherokee, Lexus, Ford, and more.

Whether you're a professional collision shop restoring a customer's vehicle to pre-accident condition or a weekend DIYer keeping your daily driver road-legal and looking sharp, Keystone's cornering and side marker light assemblies deliver a dependable, cost-effective alternative to dealer-priced OEM parts. Browse the full selection below and use the vehicle fitment guide to ensure you get the exact assembly for your year, make, and model.