Sinotruk HOWO T7H Series Truck Headlight Rear Cover

1. Basic Part Information

• Part Name: Headlight Rear Cover / Headlight Back Cover

• Applicable Models: Mainly suitable for Sinotruk HOWO T7H series heavy-duty trucks. Typically made as left and right versions for each side of the vehicle.

• Appearance Features:

  • Material: Generally high-strength engineering plastic (e.g., ABS or PP injection-molded), offering good weather resistance and toughness.

  • Shape: Flat, elongated strip with mounting holes on the edges (two round holes visible in the image) for securing to the headlight housing or bumper with bolts.

  • Markings: A printed numeric code on the back of the cover, typically indicating production batch number, mold number, or anti-counterfeiting traceability code.

2. Function & Role

• Sealing & Protection: Installed at the rear of the headlight assembly, it seals the internal structure of the lamp — effectively blocking mud, rainwater, and debris from entering during driving, thereby extending the service life of the headlight.

• Aesthetic Covering: Conceals the wiring harness connectors and mounting screws behind the headlight, giving the lower front fascia a cleaner, more finished appearance.

• Security (Minor): Some tighter-fitting rear covers, if not correctly installed, may loosen and cause rattling. In extreme cases, a properly fitted cover can help deter theft of internal components like bulbs.

3. Common Part Numbers for Reference

Based on Sinotruk parts information, common official part numbers for HOWO T7H headlight-related components include:

• WG9719720011 (Left headlight trim cover / rear cover assembly)

• WG9719720012 (Right headlight trim cover / rear cover assembly)

• WG9719720007 (Left bracket assembly, typically used together with the rear cover)