Ko-Ken KO4340C-20.8 Universal Spark Plug Socket with Spring Clip, 20.8 mm
Available
The Ko-Ken 4340C is a universal spark plug socket with spring clip.
Length is 107 mm. (manufacturer-stated)
Each model is listed in the table below with its specifications.
Where this product is used
- Removing and fitting spark plugs, with the spring clip holding the plug in the socket
- Reaching spark plugs that are out of line with the handle, using the universal joint
- Engine servicing in the workshop
Features
- Spring clip holds the spark plug in the socket (manufacturer-stated)
- Universal joint (manufacturer-stated)
Common specifications
| Specification | Detail |
|---|---|
| Length | 107 mm (manufacturer-stated) |
Key specifications
| Model | Size | Dimensions | Weight |
|---|---|---|---|
| KO4340C-16 | 16 mm | D1 21, D2 25, H 13 mm (manufacturer-stated) | 220 g (manufacturer-stated) |
| KO4340C-20.8 | 20.8 mm | D1 26.8, D2 25, H 13.5 mm (manufacturer-stated) | 250 g (manufacturer-stated) |
Weights are manufacturer-stated (Ko-ken catalogue 2025-26).
Selecting the right option
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.
Related products
Related Ko-Ken products: Ko-Ken 4300S Spark Plug Socket with Rubber Insert, Ko-Ken 3345P Universal Spark Plug Socket with Magnet, 88 mm, Ko-Ken 3340C Universal Spark Plug Socket with Spring Clip and Ko-Ken 4445A 12-Point Universal Socket, Inch Sizes.
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16mmmm socket
Model Number: KO4340C-16
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20.8mmmm socket
Model Number: KO4340C-20.8
