Williams Comfort Products JHW31301 Deep Spark Plug Socket

Product Description

The WILLIAMS COMFORT PRODUCTS JHW31301 is a deep spark plug socket designed for removing and installing spark plugs in automotive and small-engine applications. Built to SAE standards, it features a 3/8 inch drive and accepts 5/8 inch spark plugs. The overall length of 2 27/32 inches provides the depth needed to reach recessed plugs without interference. A rubber insert is molded inside the socket to grip the spark plug body, protecting the ceramic insulator during removal and installation. Mechanics and technicians who work with ignition systems rely on this type of socket to avoid cracking insulators during service.

This socket suits residential and light commercial applications where 5/8 inch spark plugs are standard. Typical use cases include engine tune-ups, ignition system service, and spark plug replacement on gas engines, generators, lawn equipment, and similar small-displacement power equipment. The deep-reach design accommodates plugs seated in recessed wells where a standard shallow socket cannot engage properly.

Key Features

• Rubber insert grips spark plug body and protects ceramic insulator from damage
• Deep socket profile reaches recessed spark plug wells
• 3/8 inch drive compatible with standard ratchets and extensions
• 5/8 inch hex fits common SAE spark plug sizes
• 2 27/32 inch overall length provides clearance in tight engine bays

Compatibility

Designed as an SAE deep spark plug socket for use with 5/8 inch spark plugs driven by a 3/8 inch drive ratchet or torque wrench.

Installation Notes

Spark plug service should be performed by a qualified technician following the engine manufacturer's service procedures. Disable the ignition system and allow the engine to cool completely before removing spark plugs. Use a calibrated torque wrench when reinstalling plugs to avoid overtightening, which can damage threads in the cylinder head. The rubber insert is designed to retain the plug during installation but should not be forced into tight clearances.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 5/8 inch
• Overall Length (OAL): 2 27/32 inches
• Socket Type: Deep
• Standard: SAE
• Weight: 0.2 pounds
• Length: 0.7 inches
• Width: 2.5 inches
• Height: 0.7 inches
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW31301