Painless Wiring 10403 Pro Series 23-Circuit GM Car Wiring Harness
- Regular price
- $599.99 USD
- Regular price
-
$599.99 USD - Sale price
- $599.99 USD
- Unit price
- per
Vendor : PAINLESS WIRING
Product Type : Ignitions and Electrical
Sku : PWI10403
Couldn't load pickup availability
✔ Veteran-Owned Business | ✔ Verified Fitment (SEMA Data) | ✔ Ships 1–3 Business Days | ✔ 30-Day Returns
The Painless Wiring 10403 Pro Series car wiring harness is designed for GM applications and provides a 23-circuit electrical harness configuration. Its customizable design supports organized wiring installation while accommodating the electrical needs identified by the Pro Series format.
This kit features a bulkhead firewall pass-through to help route wiring between the engine compartment and passenger compartment. The firewall pass-through design supports a cleaner installation by providing a defined path through the vehicle firewall.
The harness includes an in-column key configuration for GM applications. This detail is integrated into the harness design to support vehicles using an in-column ignition key arrangement.
Use the Painless Wiring 10403 when a customizable, 23-circuit GM wiring harness with a bulkhead firewall pass-through and in-column key configuration is required. The kit is identified as part of the Painless Wiring Pro Series and is supplied as a complete harness kit.
Features:
- 23-Circuit Design: Provides a 23-circuit wiring harness configuration.
- Pro Series: Part of the Painless Wiring Pro Series product line.
- GM Application: Designed for GM vehicles and wiring systems.
- Customizable: Features a customizable harness design.
- Bulkhead Firewall Pass-Through: Includes a bulkhead pass-through for routing wiring through the firewall.
- In-Column Key: Features an in-column key configuration.
- Kit Format: Supplied as a wiring harness kit.

