Apex 80403 Spark Plug Socket 3/8 in Drive 13/16 in Sae

Product Description

The APEX 80403 is a 13/16 inch, 6-point spark plug socket designed for 3/8 inch drive ratchets and extensions. Manufactured from alloy steel with a full-polish chrome finish, it resists rust and corrosion in shop and field environments. The socket is engineered to grip spark plugs securely during both removal and installation, reducing the risk of dropping or cross-threading plugs. Automotive technicians, diesel mechanics, and experienced DIYers rely on this type of socket for routine tune-ups and ignition system service. At 2.72 inches in length and 0.35 pounds, it is a compact, lightweight addition to any drive socket set.

This socket is suited for spark plug service on gasoline engines where a 13/16 inch hex plug is specified. It is compatible with standard 3/8 inch drive ratchets, breaker bars, and torque wrenches. The 6-point geometry provides full contact on the plug hex, minimizing rounding under torque. Typical applications include passenger vehicle, light truck, and small engine spark plug replacement in both shop and mobile service settings.

Key Features

• 13/16 inch, 6-point opening for full hex contact on spark plug bodies
• 3/8 inch square drive for use with standard ratchets, extensions, and torque wrenches
• Alloy steel construction for durability under high-torque applications
• Full-polish chrome finish resists rust and corrosion
• Compact 2.72 inch length suits confined engine bays

Compatibility

Designed for use with 3/8 inch drive ratchets and extensions on gasoline engines requiring a 13/16 inch spark plug socket in SAE sizing.

Installation Notes

Spark plug sockets are installed by automotive and small engine technicians following manufacturer torque specifications for the specific engine. Disconnect the ignition coil or spark plug wire before removing plugs, and allow the engine to cool before service to avoid thread damage in aluminum heads. Use a torque wrench on reinstallation to avoid over-tightening. Refer to the engine manufacturer service manual for correct plug gap and torque values.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 13/16 inch
• Point Count: 6 point
• Measurement Standard: SAE
• Length: 2.72 inches
• Weight: 0.35 pounds
• Material: Alloy steel
• Finish: Full-polish chrome
• UPC: 099575804038

Standard Information

• Brand: APEX
• Manufacturer Part Number: 80403