TYC 18-1201-66 Side Marker Light - Front Left

Front Left Side Marker Light for GM Trucks

This TYC front left side marker light is built for classic Chevrolet and GMC trucks and SUVs that use an amber front marker with chrome trim. It is a direct replacement for the original exterior lighting assembly on many 1981-1991 Chevrolet Blazer, GMC Jimmy, and related C/K and R/V series applications.

Key Features

• TYC Regular replacement part number 18-1201-66
• Front left side marker light with amber lens
• Plastic lens and plastic housing
• Halogen bulb type designation
• Screw-in attachment method
• Components included: lens and housing
• Designed for vehicles with chrome trim
• Bulbs and hardware not included

Product Details

TYC 18-1201-66 is a front left side marker light assembly for GM trucks and SUVs that require an amber exterior marker lamp with chrome trim. It cross-references Chevrolet and GMC OE part number 915557 and Partslink GM2550115 for the same application. This replacement is a practical choice for restoring the appearance and function of the front marker lamp on Chevrolet Blazer, GMC Jimmy, and other C/K, R/V, and Suburban models listed in the fitment data.

The TYC Regular line focuses on straightforward OE-style replacement parts for common repair needs. For this application, the assembly includes the lens and housing in plastic construction and uses a screw-in attachment method for installation on the front left side of the vehicle.

Common Repair Uses

• Cracked or faded amber side marker lens
• Broken or weathered front left lamp housing
• Restoration after collision or body repair
• Replacement for a missing chrome-trim marker lamp
• Correction of exterior lighting appearance on older GM trucks and SUVs

Installation Notes

Verify the vehicle uses the front left position with chrome trim before ordering. This part does not include bulbs or hardware, so reuse or source the required components separately. Confirm the matching opposite-side part number 18-1200-66 when servicing both sides of the vehicle. Fits 1981-1991 Chevrolet Blazer, front left; 1981-1986 Chevrolet C10, front left; 1981-1986 Chevrolet C10 Suburban, front left; 1981-1986 Chevrolet C20, front left; 1981-1986 Chevrolet C20 Suburban, front left; 1981-1986 Chevrolet C30, front left; 1981-1986 Chevrolet K10, front left; 1981-1986 Chevrolet K10 Suburban, front left; 1981-1986 Chevrolet K20, front left; 1981-1986 Chevrolet K20 Suburban, front left; 1981-1986 Chevrolet K30, front left; 1981-1986 Chevrolet K5 Blazer, front left; 1987-1991 Chevrolet R1500 Suburban, front left; 1989-1991 Chevrolet R2500 Suburban, front left; 1989-1991 Chevrolet R3500, front left; 1989-1991 Chevrolet V1500 Suburban, front left; 1989-1991 Chevrolet V2500 Suburban, front left; 1989-1991 Chevrolet V3500, front left; 1987-1988 Chevrolet R10 Suburban, front left; 1987-1988 Chevrolet R20, front left; 1987-1988 Chevrolet R20 Suburban, front left; 1987-1988 Chevrolet R30, front left; 1987-1988 Chevrolet V10 Suburban, front left; 1987-1988 Chevrolet V20 Suburban, front left; 1987-1988 Chevrolet V30, front left; 1987 Chevrolet R10, front left; 1987 Chevrolet V10, front left; 1987 Chevrolet V20, front left; 1981-1991 GMC Jimmy, front left; 1987-1991 GMC R1500 Suburban, front left; 1987-1991 GMC R2500 Suburban, front left; 1987-1991 GMC R3500, front left; 1987-1991 GMC V1500 Suburban, front left; 1987-1991 GMC V2500 Suburban, front left; 1987-1991 GMC V3500, front left; 1987 GMC R1500, front left; 1987 GMC V1500, front left; 1987 GMC V2500, front left; 1981-1986 GMC C1500, front left; 1981-1986 GMC C1500 Suburban, front left; 1981-1986 GMC C2500, front left; 1981-1986 GMC C2500 Suburban, front left; 1981-1986 GMC C3500, front left; 1981-1986 GMC K1500, front left; 1981-1986 GMC K1500 Suburban, front left; 1981-1986 GMC K2500, front left; 1981-1986 GMC K2500 Suburban, front left; 1981-1986 GMC K3500, front left.

Quality Assurance

TYC replacement lighting is built for direct-fit service on listed GM applications, with attention to OE-style form and function. Part number 18-1201-66 is specified for front left use on the vehicles shown in the fitment data.