Ko-Ken KO3300C14 Spark Plug Socket with Spring Clips, 14 mm, 3/8 in Drive

The Ko-Ken 3300C is a spark plug socket with spring clips and a 3/8 in square drive.

Sizes are 14, 16, 18 and 20.8 mm. (manufacturer-stated)

Length is 70 mm. (manufacturer-stated)

Each model is listed in the table below with its specifications.

Where this product is used

• Removing and fitting spark plugs, where the spring clips grip the plug at its hexagon
• Engine servicing in the workshop
• Maintenance on petrol engines

Features

• 3/8 in square drive
• Two stainless spring clips grip the spark plug at its hexagon (manufacturer-stated)
• Internal brass guide holds the clips in place and keeps the plug aligned with the threaded hole in the cylinder head (manufacturer-stated)

Common specifications

Key specifications

Weights are manufacturer-stated (Ko-ken catalogue 2025-26).

Selecting the right option

Match the 3/8 in square drive to your ratchet or handle, then choose the size that matches your spark plug hex. The catalogue warns that spring clip type spark plug sockets can deform the clip if used with shallow engagement. (manufacturer-stated)

Related products

Related Ko-Ken products: Ko-Ken 3300S Spark Plug Socket with Rubber Insert, Metric Sizes, 3/8 in Drive, Ko-Ken 3305P Spark Plug Socket with Magnet, Metric Sizes, 3/8 in Drive, Ko-Ken 3300CZ Z-Series Spark Plug Socket with Spring Clips, Metric Sizes, 3/8 in Drive, Ko-Ken 4300C Spark Plug Socket with Spring Clips, Metric Sizes, 1/2 in Drive and Ko-Ken 3405M 12-Point Socket, Metric Sizes, 3/8 in Drive.