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Description
25 153 05-S O-Ring Kohler – Genuine OEM Replacement Sealing Part
The Kohler 25 153 05-S O-Ring is a genuine OEM replacement sealing component designed for select Kohler small engines. This O-ring is used to create a tight, leak-free seal between engine parts, helping prevent oil, fuel, or air leaks and ensuring proper system performance.
O-rings are critical for maintaining engine reliability and are commonly replaced during routine service, repairs, or engine rebuilds.
Product Details
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Manufacturer Part Number: 25 153 05-S
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Brand: Kohler
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Part Type: O-Ring Seal
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Application: Engine Sealing / Fuel & Oil System Components
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OEM Status: Genuine Kohler OEM Replacement Part
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Condition: New
Function
The Kohler 25 153 05-S O-Ring is designed to:
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Provide a secure seal between engine components
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Prevent leaks of oil, fuel, or air
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Maintain proper engine system pressure and performance
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Replace worn, cracked, or flattened O-rings
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Ensure reliable operation during engine service
Compatibility
This OEM O-ring fits select Kohler small engine models 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
⚠️ Always confirm your engine model and specification number before ordering to ensure correct fitment.
Installation / Usage
The O-ring installs into a groove or sealing surface within the engine or fuel system. Replacement is recommended if:
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Leaks are present around sealed connections
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O-ring becomes brittle, cracked, or worn
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Components are removed during servicing
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Performing engine rebuild or gasket replacement
For best results:
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Lubricate O-ring lightly before installation
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Ensure proper seating to avoid pinching
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Replace O-rings anytime connections are disassembled
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Use only genuine Kohler OEM sealing parts
Maintenance Tips
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Inspect seals regularly during engine service
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Replace worn O-rings promptly to prevent leaks
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Maintain clean oil and fuel systems
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OEM parts ensure proper fit and long-term sealing performance
