The 657449 O2 EFI Sensor is a genuine OEM E-Z-GO / Cushman oxygen sensor designed for vehicles equipped with the Kawasaki 13.5-hp EFI engine. This sensor plays a critical role in monitoring exhaust oxygen levels, allowing the ECU to properly adjust the air-fuel mixture for optimal performance, fuel efficiency, and emissions control.

Replacing a faulty or failing O2 sensor helps restore smooth engine operation, proper fuel mapping, and prevents drivability issues such as rough running or poor fuel economy. This listing includes the sensor only and is intended as a direct-fit OEM replacement—no modifications required.

✅ Features & Details

• Genuine OEM E-Z-GO / Cushman part
• EFI oxygen (O2) sensor
• Designed specifically for Kawasaki 13.5-hp EFI engines
• Direct replacement for factory-installed sensor
• Sensor only (no additional hardware included)

🚙 Fits E-Z-GO Models

• 2019–2026 models with 658237 Kawasaki 13.5-hp EFI engine
• 2019–2024 Express S4, S6, L6 EFI
• 2025-2026 Express 4, 6 EFI
• 2019 RXV EFI
• 2019 TXT EFI

❌ Excludes carbureted and Kymco EX1 engine models

🚛 Fits Cushman Models

• 2019–2026 models with 658237 Kawasaki 13.5-hp EFI engine
• 2019–2026 Hauler 800, 800X, 1200, 1200X EFI
• 2019–2022 Hauler Refresher EFI
• 2025 Hauler XL EFI
• 2019–2022 Refresher FS4 EFI
• 2019–2026 Refresher Oasis EFI
• 2019–2026 Shuttle 2+2 EFI
• 2019–2026 Shuttle 2 / 4 / 6 / 8 EFI

❌ Excludes carbureted and Kymco EX1 engine models

📞 Need Help Verifying Fitment?

Call or text 937-459-8891 and we’ll be happy to confirm compatibility before you order.

💡 Transparent Pricing, Always.

The price you see is the price you pay — no hidden fees, no extra charges.

Proudly supplied by an authorized EZGO dealer.