Gearwrench 80402 Spark Plug Socket 3/8 in Drive 5/8 in

Product Description

The GEARWRENCH 80402 is a 5/8 inch, 6-point spark plug hand socket designed for 3/8 inch drive ratchets and extensions. Built from alloy steel with a chrome-plated finish, it delivers the durability required for repeated spark plug service in automotive and small-engine applications. The socket measures 2.5 inches in overall length and is tether capable, making it suitable for use in elevated or confined work areas where dropped-tool prevention is required. It meets ANSI and ASME B107.1 standards and carries a limited lifetime warranty. Automotive technicians, small-engine mechanics, and fleet service professionals will find this socket a reliable addition to a 3/8 inch drive set.

This socket is intended for removing and installing spark plugs in gasoline-powered engines where a 5/8 inch plug hex is standard. The 6-point design provides full contact on the plug hex, reducing the risk of rounding during removal of stubborn or corroded plugs. The tether-capable construction is particularly useful for technicians working on elevated platforms, in engine bays with deep plug recesses, or in any environment where tool retention is a safety consideration. The chrome-plated finish resists corrosion during regular shop use.

Key Features

• 5/8 inch (32 mm) socket size fits standard spark plug hex dimensions
• 3/8 inch hex drive compatible with standard ratchets, extensions, and torque wrenches
• 6-point contact geometry reduces rounding on stubborn or corroded plugs
• 2.5 inch overall length provides clearance in most spark plug recesses
• Tether capable for dropped-tool prevention in elevated or overhead work environments
• Meets ANSI and ASME B107.1 standards with a limited lifetime warranty

Compatibility

Designed for use with 3/8 inch drive ratchets, extensions, and torque wrenches. Fits spark plugs requiring a 5/8 inch hex socket in gasoline-powered automotive and small-engine applications.

Installation Notes

Spark plug service should be performed by a qualified automotive or small-engine mechanic with the engine fully cooled to prevent thread damage and burn risk. Always torque spark plugs to the engine manufacturer's specification using a calibrated torque wrench — do not rely on feel alone. Avoid using impact drivers with this hand socket unless the socket is impact-rated. Inspect the plug recess for debris before insertion to prevent contamination of the combustion chamber.