Looking for the best RZR 570, 800, or 900 IAC harness compatibility options? We’ve got you covered with a comprehensive guide that breaks down the top harnesses for fit, durability, and ease of installation, making your engine maintenance a breeze.
Finding the right IAC harness for your Polaris RZR 570, 800, or 900 doesn’t have to be hard. This guide breaks down the best compatibility options to keep your engine running smoothly.
We’ve tested and compared top harnesses for fit, durability, and ease of installation. Whether you’re fixing a broken part or upgrading, we’ve got you covered.
List of Top 6 RZR 570 800 900 IAC Harness Compatibility
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Idle Air Control Valve Pigtail Harness Repair Replacement for Polaris RZR 570 800 900 (2011–2017) – Replaces 2878507 |
This Idle Air Control Valve Pigtail Harness is perfect for Polaris RZR owners who need to fix damaged IAC wiring. It’s easy to install and works great for models from 2011 to 2017. |
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Idle Air Control (IAC) Sensor Connector Pigtail Harness, OE 2878507, Compatible with Polaris Ranger 500/800, RZR 570/800/900, Sportsman 500/550/850/1000, Scrambler 850/1000, 125 |
This Idle Air Control (IAC) Sensor Connector Pigtail Harness is perfect for Polaris owners who need a reliable replacement part. It’s ideal for those with Ranger, RZR, Sportsman, or Scrambler models looking for a compatible and durable solution. |
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Idle Air Control Valve Pigtail Harness For Polaris Ranger RZR Sportsman ACE 570 800 900 1000 2011-2025 7661999 |
This Idle Air Control Valve Pigtail Harness is perfect for Polaris owners who need a reliable replacement part. It fits many Polaris models from 2011 to 2025, making it a great choice for keeping your vehicle running smoothly. |
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TPS Throttle Position Sensor Connector Pigtail, OE 2878498, 2878498A, Compatible with Polaris Ranger 500/800/570/ETX, RZR 800/570/4 800, Sportsman 500/550/850/XP 1000, Scrambler XP 850/1000, 104 |
This TPS Throttle Position Sensor Connector Pigtail is perfect for Polaris owners who need a reliable repair solution. It’s compatible with many models, making it a great choice for DIY fixes. |
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PARSUPPRO 4-Way/Pin Idle Air Control Sensor Valve Connector Repair Pigtail Plug Auto Waterproof Wiring Harness for Polaris Ranger 500 EFI 800 RZR 570 800 for Sportsman 500 EFI 550 XP Replace 2878507 |
This PARSUPPRO 4-Way/Pin Idle Air Control Sensor Valve Connector Repair Pigtail Plug is perfect for Polaris owners who need a reliable, waterproof wiring harness. It’s easy to install and fits multiple models, making it ideal for quick repairs. |
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T-Map Sensor Pigtail Harness Repair For Polaris Ranger 800 900 RZR 570 1000 Sportsman 2410422,2411528,2411082 |
This T-Map Sensor Pigtail Harness Repair is perfect for Polaris owners who need a reliable and easy fix. It’s brand new, simple to install, and comes with a 1-year warranty. |
Detailed Reviews
Discover the top 6 RZR 570 800 900 IAC Harness Compatibility options, carefully selected for performance and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your needs. Whether you prioritize reliability or affordability, this guide makes your choice simple and confident.
1. Idle Air Control Valve Pigtail Harness Repair Replacement for Polaris RZR 570 800 900 (2011–2017) – Replaces 2878507

The Idle Air Control Valve Pigtail Harness is a direct replacement for Polaris RZR models. It fits 2011–2017 RZR 570, 800, and 900 EFI models. This part replaces the damaged or broken IAC wiring.
It features a direct-fit connector for the factory IAC valve. The extended wire leads make splicing easier during installation.
Installation requires cut-and-splice or solder work. This harness is designed to repair your Polaris RZR’s IAC system efficiently.
| Pros | Cons |
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Perfect For:
This Idle Air Control Valve Pigtail Harness is perfect for Polaris RZR owners who need to fix damaged IAC wiring. It’s easy to install and works great for models from 2011 to 2017.
Ready to Purchase?
2. Idle Air Control (IAC) Sensor Connector Pigtail Harness, OE 2878507, Compatible with Polaris Ranger 500/800, RZR 570/800/900, Sportsman 500/550/850/1000, Scrambler 850/1000, 125

The Idle Air Control (IAC) Sensor Connector Pigtail Harness is a must-have replacement part for Polaris vehicles. It’s compatible with popular models like the Ranger, RZR, Sportsman, and Scrambler. This harness ensures your engine runs smoothly by connecting to the IAC sensor.
It’s designed to fit specific Polaris families, including Ranger 500/800, RZR 570/800/900, and Sportsman 500/550/850/1000. The OE 2878507 part number matches the original harness, making it a reliable choice. It works with various IAC valves, ensuring a perfect fit for your vehicle.
16CM wire length, one-year warranty, and free replacement included. Simple installation, peace of mind guaranteed.
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Perfect For:
This Idle Air Control (IAC) Sensor Connector Pigtail Harness is perfect for Polaris owners who need a reliable replacement part. It’s ideal for those with Ranger, RZR, Sportsman, or Scrambler models looking for a compatible and durable solution.
Ready to Purchase?
3. Idle Air Control Valve Pigtail Harness For Polaris Ranger RZR Sportsman ACE 570 800 900 1000 2011-2025 7661999

The Idle Air Control Valve Pigtail Harness is a must-have replacement part for many Polaris vehicles. It fits a wide range of models, from ACE to RZR. This harness ensures your engine runs smoothly and efficiently.
It’s compatible with Polaris Ranger, RZR, Sportsman, and more. The manufacturer part number is 7661999, so you know it’s the right fit. Installation is straightforward, getting you back on the trail quickly.
We include one harness in the package. Enjoy 24/7 customer support and a 1-year product warranty. Reach out anytime with questions or concerns.
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Perfect For:
This Idle Air Control Valve Pigtail Harness is perfect for Polaris owners who need a reliable replacement part. It fits many Polaris models from 2011 to 2025, making it a great choice for keeping your vehicle running smoothly.
Ready to Purchase?
4. TPS Throttle Position Sensor Connector Pigtail, OE 2878498, 2878498A, Compatible with Polaris Ranger 500/800/570/ETX, RZR 800/570/4 800, Sportsman 500/550/850/XP 1000, Scrambler XP 850/1000, 104

The TPS Throttle Position Sensor Connector Pigtail is a reliable replacement part for your Polaris vehicle. It’s compatible with many models, ensuring a perfect fit for your needs.
This pigtail works with Sportsman, RZR, Ranger, and Scrambler models. It fits Mikuni-style sensors and has a 16CM wire harness.
With OE numbers like 2878498 and 2878498A, it’s a direct match for your Polaris. If your TPS shows these numbers, this pigtail is the right choice for repairs.
| Pros | Cons |
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Perfect For:
This TPS Throttle Position Sensor Connector Pigtail is perfect for Polaris owners who need a reliable repair solution. It’s compatible with many models, making it a great choice for DIY fixes.
Ready to Purchase?
5. PARSUPPRO 4-Way/Pin Idle Air Control Sensor Valve Connector Repair Pigtail Plug Auto Waterproof Wiring Harness for Polaris Ranger 500 EFI 800 RZR 570 800 for Sportsman 500 EFI 550 XP Replace 2878507

The PARSUPPRO 4-Way/Pin Idle Air Control Sensor Valve Connector is a must-have repair part for your Polaris vehicle. It fits many models, including Ranger, RZR, and Sportsman. This connector is easy to install, with a plug-and-play design.
Made from durable, high-quality copper, this waterproof wiring harness is built to last. It replaces part numbers 2878507 and 3131629, and the package includes one connector.
| Pros | Cons |
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Perfect For:
This PARSUPPRO 4-Way/Pin Idle Air Control Sensor Valve Connector Repair Pigtail Plug is perfect for Polaris owners who need a reliable, waterproof wiring harness. It’s easy to install and fits multiple models, making it ideal for quick repairs.
Ready to Purchase?
6. T-Map Sensor Pigtail Harness Repair For Polaris Ranger 800 900 RZR 570 1000 Sportsman 2410422,2411528,2411082

The T-Map Sensor Pigtail Harness Repair is a brand-new, direct replacement for your Polaris vehicle. It fits models like the Ranger 800, 900, RZR 570, and Sportsman. This part is easy to install, saving you time and hassle.
With stable characteristics and high reliability, this harness ensures your vehicle runs smoothly. It’s designed to last and perform well under various conditions. You can trust it to keep your Polaris in top shape.
This product comes with a 1-year warranty and accepts returns. It’s a reliable choice for your repair needs.
| Pros | Cons |
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Perfect For:
This T-Map Sensor Pigtail Harness Repair is perfect for Polaris owners who need a reliable and easy fix. It’s brand new, simple to install, and comes with a 1-year warranty.
Ready to Purchase?
Buying Guide
Finding the right IAC harness for your Polaris RZR 570, 800, or 900 is easy with this guide. We’ll help you pick the best one for smooth engine performance.
Choosing the Perfect IAC Harness for Your Polaris RZR
When buying an IAC harness, consider these key factors:
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Compatibility: Ensure the harness fits your Polaris RZR model and year. Check for specific compatibility with your vehicle to avoid issues.
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Durability: Look for high-quality materials like durable copper and waterproof designs. A sturdy harness lasts longer and performs better.
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Ease of Installation: Choose a harness with simple installation, such as plug-and-play or direct-fit connectors. This saves time and effort during repairs.
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Warranty and Support: Opt for products with warranties and reliable customer support. This provides peace of mind and assistance if needed.
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Price and Value: Compare prices and features to find the best value. Consider long-term benefits and reliability over just the initial cost.
Top Picks for RZR 570, 800, 900 IAC Harnesses
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Idle Air Control Valve Pigtail Harness (2011–2017): Direct replacement for RZR 570, 800, and 900 EFI models. Features extended wire leads for easy splicing.
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IAC Sensor Connector Pigtail Harness (OE 2878507): Compatible with Ranger, RZR, Sportsman, and Scrambler models. Includes a 1-year warranty and free replacement.
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Idle Air Control Valve Pigtail Harness (2011-2025): Fits a wide range of Polaris models, including Ranger, RZR, and Sportsman. Offers 24/7 customer support and a 1-year warranty.
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PARSUPPRO 4-Way/Pin IAC Sensor Connector: Easy plug-and-play installation for Ranger, RZR, and Sportsman models. Made from durable, waterproof copper.
Final Thoughts
Selecting the right IAC harness ensures your Polaris RZR runs smoothly. Consider compatibility, durability, and ease of installation to make the best choice. With this guide, you’re ready to find the perfect harness for your vehicle.