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Description
25 418 07-S Oxygen Sensor (Less Clip) Kohler – Genuine OEM Replacement Part
The Kohler 25 418 07-S Oxygen Sensor (Less Clip) is a genuine OEM replacement emissions and fuel management component designed for select Kohler electronically fuel-injected (EFI) engines. This oxygen (O2) sensor monitors exhaust oxygen levels and provides feedback to the engine control module (ECM) to optimize fuel mixture, improve combustion efficiency, and reduce emissions.
This OEM sensor is supplied without the retaining clip, making it important to reuse or obtain the correct clip during installation if required.
Product Details
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Manufacturer Part Number: 25 418 07-S
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Brand: Kohler
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Part Type: Oxygen Sensor (O2 Sensor)
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Configuration: Less Clip (Clip Not Included)
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Application: EFI Fuel Management / Emissions Control System
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OEM Status: Genuine Kohler OEM Replacement Part
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Condition: New
Function
The Kohler 25 418 07-S Oxygen Sensor is designed to:
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Monitor oxygen content in exhaust gases
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Provide feedback for proper air-fuel ratio adjustment
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Improve combustion efficiency and throttle response
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Support emissions compliance in EFI engines
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Replace faulty or damaged oxygen sensors
Compatibility
This OEM oxygen sensor fits select Kohler EFI-equipped engines commonly used in:
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Riding lawn mowers
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Lawn tractors
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Zero-turn mowers
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Commercial outdoor power equipment
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Kohler engines with electronic fuel injection systems
⚠️ Always verify your engine model and specification number before ordering to ensure correct fitment.
Installation / Usage
The oxygen sensor installs into the exhaust system and connects to the engine’s electronic control harness. Replacement is recommended if experiencing:
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Engine running rich or lean
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Poor fuel efficiency
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EFI fault codes related to oxygen sensing
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Reduced performance or unstable idle
For best results:
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Follow Kohler service manual procedures
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Inspect wiring connectors for corrosion or damage
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Confirm whether the retaining clip must be reused
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Use only genuine Kohler OEM EFI components
Maintenance Tips
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Use clean fuel and maintain proper engine tuning
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Inspect exhaust and sensor wiring regularly
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Replace faulty O2 sensors promptly to prevent performance issues
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OEM sensors ensure accurate readings and reliable engine control
