Ko-Ken KO4300S18 Spark Plug Socket with Rubber Insert, 18 mm
Out of stock
The Ko-Ken 4300S is a spark plug socket with rubber insert.
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, with the rubber insert holding the plug in the socket
- Engine servicing in the workshop
- Maintenance on petrol engines
Features
- Rubber insert holds the spark plug in the socket (manufacturer-stated)
Common specifications
| Specification | Detail |
|---|---|
| Length | 70 mm (manufacturer-stated) |
Key specifications
| Model | Size | Dimensions | Weight |
|---|---|---|---|
| KO4300S18 | 18 mm | D 23.9, H1 21, H2 21 mm (manufacturer-stated) | 130 g (manufacturer-stated) |
| KO4300S20.6 | 20.8 mm | D 26.9, H1 27, H2 22 mm (manufacturer-stated) | 135 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.
Related products
Related Ko-Ken products: Ko-Ken 4340C Universal Spark Plug Socket with Spring Clip, 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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18mmmm socket
Model Number: KO4300S18
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20.8mmmm socket
Model Number: KO4300S20.6

