B7S Spark Plug | NGK 3710
Premium NGK spark plugs are known for their reliable performance and superior anti-fouling characteristics.
- NGK spark plug B7S
- Stock number 3710
- 14mm x 1.25mm thread
- Gasket seat
- Standard type
- Gap .028 in. (0.7mm)
- 13/16 in. hex
- Replaces Mercury/Mercruiser 33-813413
