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TYC 20-9974-00 Headlight Assembly - Left
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.
| Brand | TYC |
| Part Number | 20-9974-00 |
| Position | TYC Regular, Left |
| Bulbs Included | Yes |
| Lens Color | Clear |
| Bulb Type | Led |
| Lens Material | Pc plastic |
| Housing Material | Pp plastic |
| Afs Motor | No |
| Daytime Running Light Bulb Included | Yes |
| Daytime Running Light Bulb Type | Led |
| Front Side Marker Light Bulb Included | Yes |
| Front Side Marker Light Bulb Type | Led |
| Front Signal Light Bulb Included | Yes |
| Front Signal Light Bulb Type | Led |
| Hardware Included | No |
| High Beam Bulb Included | Yes |
| High Beam Bulb Type | Led |
| Low Beam Bulb Included | Yes |
| Low Beam Bulb Type | Led |
| Other Side | 20-9973-00 |
| Park Lamp Bulb Included | Yes |
| Park Lamp Bulb Type | Led |
| Position | Left |
| Remarks | W/o logo |
| Sae/dot Compliant | Yes |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Mercedes-Benz | GLC300 | Base | Sport Utility | Left | LED Type; TYC Regular |
| 2019 | Mercedes-Benz | GLC350e | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2019 | Mercedes-Benz | GLC43 AMG | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2019 | Mercedes-Benz | GLC63 AMG | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2018 | Mercedes-Benz | GLC300 | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2018 | Mercedes-Benz | GLC350e | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2018 | Mercedes-Benz | GLC43 AMG | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2018 | Mercedes-Benz | GLC63 AMG | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2017 | Mercedes-Benz | GLC300 | Base | Sport Utility | Left | LED Type; TYC Regular |
| 2017 | Mercedes-Benz | GLC43 AMG | 4Matic | Sport Utility | Left | LED Type; TYC Regular |
| 2016 | Mercedes-Benz | GLC300 | Base | Sport Utility | Left | LED 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.