Overview Reviews Product Description Click here for NGK Spark Plug Part Finder Supersedes to TR4 NGK Product Videos Custom Field Product Reviews Write a Review Write a Review × NGK OBSOLETE NLA NGK SPARK PLUG, PART NO.: BP4EFS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *