Wiring Adapter

Wiring Adapter - Run/Turn/Brake - Harley-Davidson®

• Allows for standard lighting functions, running, turn, and brake
• Works with Ciro 6 pin lighting systems
• Plug-and-Play installation
• For enhanced customization and to unlock the full capabilities of your Ciro lighting system, consider upgrading to the Lightstrike COMMANDER™ part # 2050-0551 or 2050-0606.

Fitment

CIRO part numbers: 42621

CIRO 42621 is the 16-pin adapter for 2026-up applications.

2026-up Street Glide FLHX.

2026 Street Glide Limited FLHXL.

2026-up Street Glide Limited CVO FLHXLSE.

2026-up Street Glide ST CVO FLHXSTSE.

2026-up Road Glide FLTRX.

2026-up Road Glide ST CVO.

2026-up Road Glide Limited FLTRXL.

Excludes Trike models.

CIRO manufacturer fitment reference