Oil Filter – part no. W21ES-O1640 is a high-quality replacement engine oil filter designed to protect your machine’s engine by trapping contaminants, sludge, and metal particles from circulating oil. Built to deliver dependable performance and long service life, this filter helps maintain clean oil flow, reduce wear, and extend the life of your engine — making it essential for routine maintenance and scheduled servicing.

Manufactured to meet or exceed OEM filtration standards, the W21ES-O1640 filter ensures excellent dirt-holding capacity and reliable oil flow, helping your engine run clean and efficiently under a variety of operating conditions.

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Key Features

• High-Performance Filtration Media – Efficiently captures contaminants, protecting internal engine components

• Durable Construction – Designed to withstand continuous engine use and oil pressure

• Improves Engine Longevity – Helps reduce wear and tear by keeping oil cleaner

• Direct OEM Replacement – Fits specified engines without modification

• Essential Maintenance Part – Ideal for routine oil & filter change intervals

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Typical Applications / Fits These Engines

The Oil Filter W21ES-O1640 is used on a range of small-engine and industrial machines where this specification is required. Common applications include:

Small Engine / Outdoor Power Equipment:

• Lawn tractors and ride-on mowers

• Garden tractors and walk-behind mowers

• Compact utility tractors with compatible oil filtration specs

Industrial / Construction Equipment:

• Concrete saws, generators, and pumps

• Small diesel or petrol engines with cartridge-style oil filters

Common Engine Families (Examples):

• Kohler small-engine applications where this filter spec is used

• Kawasaki overhead valve engines with similar filter codes

• Briggs & Stratton compatible configurations (confirm with parts diagram)

• Other small engines that reference W21ES-O1640 or equivalent OEM codes

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Product Details

• Product Type: Engine oil filter

• Part Number: W21ES-O1640

• Filtration Media: High-efficiency filter element

• Brand: Aftermarket / OEM spec

• Application: Traps oil contaminants for engine protection

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Why Choose the W21ES-O1640 Oil Filter

The W21ES-O1640 Oil Filter offers dependable engine protection and helps you maintain proper lubrication system cleanliness. By ensuring that circulating oil stays free from harmful particles, this filter supports smoother engine operation, better efficiency, and longer component life. Whether you’re performing routine maintenance or preparing your equipment for heavy use, this oil filter is an essential part of your service schedule.