NGK 6422 BPR7HS Copper Core Spark Plug - Reliable OE Performance

NGK Standard Copper Core Spark Plug – 6422 (BPR7HS)

The NGK 6422 BPR7HS is engineered to provide consistent performance across a wide range of operating conditions. By utilizing a high-grade alumina silicate ceramic insulator, NGK has created a plug that is incredibly strong and efficient at transferring heat away from the combustion chamber. This reduces the risk of pre-ignition and ensures your engine runs smoothly.

The "R" in the part number indicates it is a resistor-type plug, which helps reduce electromagnetic interference (EMI) with onboard electronics, radios, and GPS equipment. This makes it an ideal choice for modern powersports equipment that utilizes electronic displays.

Detailed Vehicle Compatibility

Porsche 912:

• 1965, 1966, 1968, 1969

Product Highlights & Features

• Triple Gasket Seal: Prevents combustion gases from leaking past the shell, maintaining full engine compression.

• Cold-Rolled Threads: Precision manufacturing ensures the threads are smooth and won't damage expensive aluminum cylinder heads.

• Broad Compatibility: This plug is a direct replacement for many older Bosch, Champion, and Autolite equivalents.

Technical Specifications

• Part Number: 6422 / BPR7HS

• Thread Size: 14mm

• Reach: 12.7mm (1/2")

• Hex Size: 13/16" (20.8mm)

• Heat Range: 7

Installation & Maintenance Tips

• Gap Verification: Always check the gap with a wire-style feeler gauge. While pre-set at 0.028", your specific engine may require a different adjustment.

• Torque properly: To prevent damage, use a torque wrench to tighten the plug to 18.0 - 21.6 lb-ft in aluminum heads.

• Inspect the Boot: When replacing spark plugs, always check your spark plug wires/boots for cracks or carbon tracking.