Autolite (4 Pack) Genuine Small Engine Copper Core Spark Plugs # 2976-4PK

Includes (4) 2976 Spark Plugs. Thread Size: 14mm, Thread Pitch: 1.25mm, Seat Type: Gasket, Reach: 9.5mm (3/8"). Hex Size: 13/16" (21mm), Terminal Type: Removable Nu. Material: Nickel, Type: Standard, Projection: Non-Projected. Copper core improves resistance to fouling. Compatible with the Following: Bosch: 7546, 7811, WS8F, Champion: 848, 863, CJ8Y, RCJ8Y, stk 848, stk 863, NGK: 1193, 1194, 4562, 4626, 5204, 5928, 6026, 6028, 6328, 6726, 747, BPM4A, BPM6A, BPM6A-10, BPM6Y, BPM8Y, BPMR4A, BPMR4A-10, BPMR6A, BPMR7A

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength Multi-rib insulator reduces danger of "flash-over" Resistor reduces radio frequency interference (RFI) and electrode erosion Full copper core electrode provides better performance in all conditions Fit type: Vehicle Specific