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Description
M-931010-S – Kohler Flat Washer 9 mm (Genuine OEM Replacement Washer)
The Kohler M-931010-S Flat Washer is a genuine OEM replacement fastener designed to provide secure load distribution and reliable fastening in a wide variety of Kohler engines and outdoor power equipment. This 9 mm flat washer helps protect mounting surfaces, reduces fastener wear, and maintains proper clamping force during engine operation.
Manufactured from high-strength steel with a corrosion-resistant finish, the M-931010-S is built to withstand vibration, heavy loads, and harsh outdoor environments while delivering long-lasting performance.
Product Details
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Part Number: M-931010-S
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Brand: Kohler
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Part Type: Flat Washer
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Size: 9 mm
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Material: High-Strength Steel
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Finish: Corrosion-Resistant Coating
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Installation: Direct OEM Replacement
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Genuine Kohler OEM Part
Key Features
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Genuine Kohler OEM replacement washer
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Precision-manufactured for proper fit
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Evenly distributes fastener load
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Helps protect mounting surfaces from damage
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Corrosion-resistant steel construction
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Withstands engine vibration and heavy-duty use
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Long service life
Function
The Kohler M-931010-S Flat Washer is installed beneath the head of a bolt or nut to distribute clamping force evenly, helping prevent damage to components while maintaining a secure and stable connection.
Compatible Equipment
The Kohler M-931010-S is used on numerous Kohler gasoline engines found in:
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Zero-turn mowers
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Riding lawn mowers
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Walk-behind mowers
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Garden tractors
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Commercial turf equipment
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Utility vehicles
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Generators
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Pressure washers
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Other outdoor power equipment powered by compatible Kohler engines
Always verify your engine model and illustrated parts list before ordering.
Who Is This For?
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Homeowners
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Commercial landscapers
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Small engine repair technicians
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Outdoor power equipment dealers
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Fleet maintenance professionals
Recommended Applications
Ideal for replacing worn, damaged, corroded, or missing flat washers during engine repairs, routine maintenance, or equipment assembly.
Pros
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Genuine Kohler OEM quality
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Precision fit and dimensions
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Durable corrosion-resistant finish
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Distributes clamping force evenly
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Helps prevent component damage
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Easy direct replacement
Cons
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Fits only applications requiring a 9 mm flat washer
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Proper bolt and washer sizing should always be verified before installation
Comparison – Kohler M-931010-S vs Generic Flat Washers
Kohler M-931010-S
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Genuine OEM specifications
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Precision-manufactured dimensions
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Corrosion-resistant finish
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Reliable performance in high-vibration applications
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Long service life
Generic Flat Washers
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May vary in thickness and tolerances
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Inconsistent material quality
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Reduced durability under demanding operating conditions
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Potential fitment issues
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies genuine Kohler OEM engine parts trusted by professional landscapers, repair technicians, and outdoor power equipment owners.
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Genuine OEM Kohler replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for Kohler and other leading outdoor power equipment brands

