Windshield Cable Channel / Wiring Harness Guide – 4K0971871D

Original windshield cable channel (wiring harness protective guide / firewall cable tray), designed for Audi A7 Sportback (4K / 4K8 generation) and Audi A6 C8 (type 4K2 / 4K5 / 4KA) vehicles based on the modular longitudinal MLBevo platform.

Original VAG electrical system and firewall trim component. Made of durable engineering plastic resistant to extreme temperatures, thermal aging, and moisture. It ensures precise routing, securing, and mechanical protection of the main windshield wiring harness, wiper mechanism power supply, and sensor installations against chafing, contact with sharp bodywork edges, and water draining from the front windshield.

Technical specifications:

• OE part number: 4K0971871D / 4K0 971 871 D (interchangeable with series numbers 4K0971871, 4K0971871A, 4K0971871B, 4K0971871C)

• Function: Wiring harness protective channel / windshield cable channel (Wiring Harness Cable Channel / Guide)

• Material / Construction: Engineering plastic (PP/PA) with factory clips, wire guides, and mounting snap-fits

• Installation side: Firewall / windshield cable channel – front

• Steering side: Left (LHD – European version)

• Condition: Original used part (100% functional, no cracks, no broken clips, cover snap-fits, or mounting brackets, unrepaired, ready for direct installation)

• Manufacturer: Audi AG / VAG (Original OEM)

Main applications:

• Audi:

  • A7 Sportback (type 4K8) – model years 2018 to 2026 (all TFSI and TDI engine versions)

  • S7 / RS7 Sportback (type 4K8) – model years 2019 to 2026

  • A6 / A6 Avant / Allroad (type 4K2 / 4K5 / 4KA - C8) – model years 2018 to 2026

  • S6 / RS6 Avant (type 4K - C8) – model years 2019 to 2026

  • A8 / S8 (type 4N2 / 4N8 - D5) – selected model years with related firewall architecture

Fitment guarantee and VIN verification

Every part undergoes strict quality control before shipping.

Fitment / installation note: Cable channels in MLBevo platform models have dedicated slots and profiles perfectly matched to the factory harness thickness and mounting points on the firewall. Using an original OEM component eliminates looseness, wire vibrations, and the risk of cable insulation chafing at the wiper mechanism. Before purchasing, we recommend comparing the full OE number with the index (D) stamped on the old guide or verifying compatibility using the vehicle's VIN.