Description
The York S1-025-45260-000 is an OEM replacement main wiring harness engineered specifically for York 2-stage, 90% AFUE gas furnaces. This harness serves as the central electrical backbone of the furnace, routing power and control signals between the control board, gas valve, ignition system, blower motor, and other critical components. Using a genuine York replacement harness ensures proper connector fitment, correct wire gauging, and full compatibility with the furnace’s multi-stage control logic — helping to avoid nuisance faults, intermittent failures, or unsafe wiring conditions that can arise from aftermarket substitutes.
Key Features
- OEM York replacement main wiring harness
- Designed for 2-stage, 90% AFUE York gas furnaces
- Provides reliable electrical interconnection between furnace control board, gas valve, ignitor, and blower components
- Pre-terminated connectors for accurate, plug-and-play installation
- Correct wire gauging and insulation for safe, long-term furnace operation
- Helps restore proper multi-stage furnace control and communication
Application
- Direct OEM replacement for compatible York 2-stage, 90% AFUE furnace models
- Ideal for service technicians performing electrical diagnostics and harness replacement
- Verify compatibility with your specific York furnace model number before ordering
Why Choose OEM?
Using a genuine York wiring harness eliminates the guesswork of aftermarket fitment. OEM harnesses are manufactured to the same specifications as the original, ensuring all connectors seat correctly, wire lengths are appropriate for the furnace cabinet, and insulation ratings meet the thermal demands of a high-efficiency furnace environment. This reduces callback risk and supports a clean, code-compliant installation.
