DENSO 6002 SF-51 U-Groove Standard Spark Plug

The DENSO 6002 (SF-51) is a standard U-Groove spark plug featuring an innovative channeled ground electrode design that delivers superior ignition performance. This unique ground electrode configuration generates a larger spark nucleus at the point of ignition, providing greater spark energy than ordinary plugs for improved flame travel and more complete, consistent combustion.

Key Features:

• Copper core center electrode for superior thermal conductivity
• 360-degree laser-welded construction
• 100 percent pre-fired to ensure reliable operation
• Unique 5-rib insulator reduces flashover and decreases voltage loss
• Purified alumina insulators with dual copper and glass seal for gas-tight bonding
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• 14mm thread diameter with 12.7mm reach and flat seat design
• Semi or surface discharge construction with removable terminal

Engineered for greater fuel efficiency and improved throttle response, the U-Groove ground electrode was developed to meet OEM demands for improved ignitability and lower emissions. This spark plug lasts twice as long as conventional plugs and serves as original equipment in many automotive applications.

Cross References: Champion L78V, QL78C, QL78V; NGK BUHW-2, BUZHW2; DENSO 067800-0041; Toyota 90098-00855