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The WILLIAMS COMFORT PRODUCTS JHW31303 is a deep spark plug socket designed for removing and installing spark plugs in gasoline engines. Built to SAE specification with a 13/16-inch opening and a 3/8-inch square drive, it measures 2.5 inches in overall length and weighs 0.32 pounds. A rubber insert inside the socket grips the spark plug body securely during extraction and installation, protecting the ceramic insulator from cracking or chipping. This socket is a standard hand-tool item used by automotive technicians, small-engine mechanics, and HVAC service pros working on gas-fired equipment with spark-ignited burners.
This deep socket suits applications where standard-depth sockets cannot reach recessed spark plugs, such as those found in automotive engines, portable generators, lawn equipment, and certain gas-fired heating appliances. The 3/8-inch drive is compatible with common ratchets, extensions, and torque wrenches found in most trade tool kits. Sold individually, this is a direct replacement or addition to socket sets requiring the 13/16-inch SAE size.
Designed as a general-purpose 13/16-inch deep spark plug socket for use with 3/8-inch drive ratchets, extensions, and torque wrenches in SAE applications.
Spark plug service should be performed by a qualified technician with the ignition system disabled and the engine cooled before service begins. Use the rubber insert to seat and extract the spark plug without applying lateral force to the insulator. Always verify torque requirements using the equipment manufacturer's service documentation before final installation.
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