Description
The NGK BPR6HS (Stock #7022) is a resistor-type nickel spark plug designed for reliable ignition performance in classic, vintage, and small-displacement engines. Built with NGK’s OE-quality materials, it delivers consistent spark, efficient heat transfer, and long-lasting durability.
Key Features
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OE-style nickel electrode for dependable, consistent ignition
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5kΩ resistor reduces electrical interference (RFI/EMI)
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Copper core improves heat dissipation and conductivity
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Trivalent metal plating resists corrosion and prevents thread seizure
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Triple gasket sealing prevents combustion gas leakage
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Durable ceramic insulator enhances strength and heat transfer
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Removable terminal nut for flexible fitment
Specifications
General
- Part Number: BPR6HS
- Stock Number: 7022
- Heat Range: 6
- Resistor: Yes (5000 Ohms)
- Pre-Gap: 0.7 mm (.028")
Shell
- Thread Size: M14 x 1.25
- Reach: 12.7 mm (1/2")
- Seat Type: Flat (Gasket)
- Hex Size: 13/16"
- Terminal Type: Removable nut
Electrodes
- Center Electrode: Nickel (copper core)
- Ground Electrode: Standard nickel
- Projection: Mid projection
- Configuration: J-gap
Common Applications
Classic & Vintage Vehicles
- Buick Skylark (1961–1962 V8 3.5L)
- Mercedes-Benz 180 / 190 / 220 series (1960s)
- Porsche 356 A/B/C (1955–1965)
- Volvo 122 / 140 / 160 series (1959–1975)
- Saab 95 / 96 (late 1960s)
European Imports
- Citroën DS / ID / D21 models (1968–1972)
- Opel Kadett / Manta / 1900 (late 60s–70s)
- Renault R-series & Caravelle
British Classics
- Triumph Spitfire, TR3, TR4 series
Performance Notes
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Heat range 6 = medium heat, ideal for many classic engines
- Best suited for engines originally equipped with standard nickel plugs
- Not recommended for vehicles requiring platinum or iridium plugs
- Typical service life: ~20,000–30,000 miles
- Always verify gap and torque specs before installation
