HomeElectrical, Lighting and Body > Lighting - ExteriorTYC 20-9974-00 Headlight Assembly - Left
Part #: 20-9974-00

TYC 20-9974-00 Headlight Assembly - Left

TYC Regular, Left
⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦TYC Regular, Left
🚗Fitment: Mercedes-Benz, GLC300, GLC350e, GLC43 AMG, and GLC63 AMG
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Overview of TYC Regular Left Headlight Assembly for Mercedes-Benz GLC Models

The TYC Regular Left Headlight Assembly (Part Number 20-9974-00) is designed specifically for select Mercedes-Benz GLC models, including the GLC43 AMG, GLC63 AMG, GLC300, and GLC350e. This headlight assembly features integrated LED bulbs for enhanced visibility and durability, making it a reliable replacement for your vehicle's exterior lighting needs.

  • Complete headlight assembly with all LED bulbs included
  • Clear polycarbonate lens for optimal light transmission
  • Durable polypropylene housing for long-lasting protection
  • Includes LED daytime running light, front side marker, front signal, high beam, low beam, and park lamp bulbs
  • Designed for the left side of Mercedes-Benz GLC43 AMG, GLC63 AMG, GLC300, and GLC350e models
  • SAE/DOT compliant for safety and regulatory standards
  • Part number 20-9974-00 corresponds with right side part 20-9973-00

TYC Regular Product Line Details

The TYC Regular product line offers dependable automotive lighting solutions that meet OEM specifications. This line focuses on providing quality replacement parts with integrated LED technology, ensuring compatibility and performance for vehicles like the Mercedes-Benz GLC series. The 20-9974-00 headlight assembly exemplifies the TYC Regular commitment to functional design and reliable illumination.

Product Features and Specifications

This left headlight assembly includes all necessary LED bulbs: daytime running light, front side marker, front signal, high beam, low beam, and park lamp. The clear lens is made from polycarbonate plastic, which resists impact and weathering, while the housing is constructed from polypropylene plastic for durability. Note that this assembly does not include an AFS motor and does not come with installation hardware.

Applications and Problem Solving

  • Replacement for damaged or cracked left headlight assembly on Mercedes-Benz GLC43 AMG, GLC63 AMG, GLC300, and GLC350e
  • Restores full LED lighting functionality including daytime running lights and signal indicators
  • Improves nighttime visibility and vehicle safety with LED high and low beams
  • Ensures compliance with SAE/DOT lighting standards
  • Upgrades aging or faded headlight lenses for clearer illumination

Installation Notes and Tips

Installation of the TYC Regular 20-9974-00 headlight assembly should be performed by a qualified technician familiar with Mercedes-Benz GLC models. Since installation hardware is not included, retain original mounting components or acquire compatible fasteners. Verify electrical connections for all integrated LED bulbs to ensure proper operation. This assembly is designed for the left side and pairs with part number 20-9973-00 for the right side.

Quality Assurance and Warranty

TYC Regular headlight assemblies are manufactured to meet or exceed OEM standards and are SAE/DOT compliant. While specific warranty details are not provided here, TYC products typically come with a limited warranty covering defects in materials and workmanship. Confirm warranty terms with the supplier or manufacturer documentation.

BrandTYC
Part Number20-9974-00
PositionTYC Regular, Left
Bulbs IncludedYes
Lens ColorClear
Bulb TypeLed
Lens MaterialPc plastic
Housing MaterialPp plastic
Afs MotorNo
Daytime Running Light Bulb IncludedYes
Daytime Running Light Bulb TypeLed
Front Side Marker Light Bulb IncludedYes
Front Side Marker Light Bulb TypeLed
Front Signal Light Bulb IncludedYes
Front Signal Light Bulb TypeLed
Hardware IncludedNo
High Beam Bulb IncludedYes
High Beam Bulb TypeLed
Low Beam Bulb IncludedYes
Low Beam Bulb TypeLed
Other Side20-9973-00
Park Lamp Bulb IncludedYes
Park Lamp Bulb TypeLed
PositionLeft
RemarksW/o logo
Sae/dot CompliantYes

This part fits 11 vehicles. Search below:

YearMakeModelSubmodelBody TypePositionNotes
2019Mercedes-BenzGLC300BaseSport UtilityLeftLED Type; TYC Regular
2019Mercedes-BenzGLC350e4MaticSport UtilityLeftLED Type; TYC Regular
2019Mercedes-BenzGLC43 AMG4MaticSport UtilityLeftLED Type; TYC Regular
2019Mercedes-BenzGLC63 AMG4MaticSport UtilityLeftLED Type; TYC Regular
2018Mercedes-BenzGLC3004MaticSport UtilityLeftLED Type; TYC Regular
2018Mercedes-BenzGLC350e4MaticSport UtilityLeftLED Type; TYC Regular
2018Mercedes-BenzGLC43 AMG4MaticSport UtilityLeftLED Type; TYC Regular
2018Mercedes-BenzGLC63 AMG4MaticSport UtilityLeftLED Type; TYC Regular
2017Mercedes-BenzGLC300BaseSport UtilityLeftLED Type; TYC Regular
2017Mercedes-BenzGLC43 AMG4MaticSport UtilityLeftLED Type; TYC Regular
2016Mercedes-BenzGLC300BaseSport UtilityLeftLED Type; TYC Regular

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

253 906 13 01MB2518109

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.