Idle Air Control Valve Pigtail Harness Repair Replacement for Polaris RZR 570 800 900 (2011–2017) – Replaces 2878507

This idle air control (IAC) valve pigtail harness repair replacement is designed for select Polaris RZR EFI models and addresses wiring failures at the IAC valve connection. Over time, vibration and engine movement can cause the factory wiring to break internally or externally, leading to idle issues or intermittent fault codes. This replacement pigtail connects directly to the IAC valve and provides extended wire leads to allow proper splicing into the existing harness. Installation requires cutting the damaged connector and attaching the new pigtail using the included butt connectors or by soldering. Designed to restore reliable electrical connection and proper idle control. Replaces Polaris part number 2878507. Fitment 2012–2017 RZR 570 2011–2014 RZR 800 (All models) 2011–2014 RZR 900 (All models) (For models using IAC valves 3131629 or 4011638) Replaces Part Number(s) Polaris 2878507 What’s Included 4-wire IAC valve pigtail harness with approximately 6 in. leads Butt connectors for installation

• Replacement IAC valve pigtail harness for Polaris RZR EFI models
• Designed to repair damaged or broken IAC wiring
• Direct-fit connector for factory IAC valve
• Extended wire leads for easier splicing
• Requires cut-and-splice or solder installation