NGK 6222 Spark Plug

NGK BPR5HS Standard Spark Plug

NGK 6222 is a standard spark plug built for dependable ignition performance in a wide range of older domestic and import applications. This NGK Standard Spark Plug uses a copper core center electrode, nickel tip materials, and a 5,000 ohm resistor to support stable spark delivery and reduced electrical noise.

Key Features

• Part number BPR5HS / stock number 6222
• Standard spark plug design with a flat seat
• Copper core center electrode with nickel tip material
• Nickel ground electrode with standard configuration
• 5,000 ohm resistor for ignition system noise suppression
• Pre-gapped at .028 inch
• 14 mm thread diameter, .5 inch reach, 13/16 inch hex
• Removable nut terminal for common ignition wire setups

Product Details

NGK builds this Standard Spark Plug line around original equipment-style construction and broad application coverage. The BPR5HS spark plug is specified for vehicles such as the 1972-1974 Rover 3500, 1963-1967 Jeep Wagoneer, and 1963-1964 Buick Skylark, making NGK 6222 a direct replacement choice for owners maintaining period-correct ignition service. The copper core and nickel electrode materials support consistent combustion, while the resistor design helps maintain clean electrical operation in the ignition system.

This part cross-references Bosch 4020 and AMS Automotive 4192 for the same application.

Common Uses

• Restoring weak or inconsistent spark output
• Replacing worn electrodes that can cause misfire
• Addressing hard starting on older ignition systems
• Correcting rough idle caused by aged spark plugs
• Maintaining OE-style ignition service on Rover 3500, Jeep Wagoneer, and Buick Skylark applications

Installation Notes

Verify the specified gap before installation and confirm the plug seat type, thread diameter, reach, and hex size match the engine requirements. Use the correct torque procedure for the cylinder head material, and inspect ignition wires, caps, and coils during service. For fitment, this NGK BPR5HS spark plug is listed for 1972-1974 Rover 3500, 1963-1967 Jeep Wagoneer, and 1963-1964 Buick Skylark applications shown in the catalog data.

Quality Assurance

NGK is a long-established OE spark plug supplier with North American manufacturing, inventory, and distribution support. The brand’s OE-focused engineering and broad vehicle coverage reflect its role in supplying ignition components for automotive, motorcycle, marine, and small engine applications.