NGK
Standard Spark Plug

NGK 5422 Spark Plug

Brand NGK 5422
Center Electrode Core Material Copper
Center Electrode Tip Material Nickel
Electrical Terminal Type Removable Nut
Ground Configuration Standard
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Standard
Hex Size 13/16
Insulator Height 55.00
Manufacturer Heat Range 8
Part Number BR8ES
Pre-Gap Size .032
Reach .75
Resistance 5000
Seat Type Flat
Stock Number 5422
Thread Diameter 14.00
Product line Standard Spark Plug
Fits Husqvarna, Benelli, Moto Guzzi, Aprilia, Vespa, KTM, Yamaha, Gas Gas, Kawasaki, ATK, Triumph, Arctic Cat, Beta, Honda, Suzuki, Renault, Maico, Scorpion, Can-Am, Bultaco, Harley Davidson, Moto-Ski, Lamborghini, Ski-Doo, Sno-Jet, Porsche, and BMW · 4 vehicles

OE supplier heritage. Built by NGK, a long-time original equipment spark plug manufacturer.

Copper core design. Helps promote reliable ignition performance and consistent operation.

Standard spark plug. A direct-fit replacement for many ignition applications.

Cross-references AMS Automotive 4033, AP Exhaust 7530 and Carlson 7707 for the same application. See all 45.

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NGK BR8ES Standard Spark Plug

NGK BR8ES 5422 is a standard spark plug built for consistent ignition performance in classic Porsche applications. It uses a copper center electrode with a nickel tip, a nickel ground electrode, and a 5,000 ohm resistor to support stable spark delivery and reduced electrical interference.

Compatible with 1968 Porsche 911 and 1970-1971 Porsche 911, this NGK Standard Spark Plug line reflects NGK’s OE-focused approach for domestic and import vehicles. The BR8ES part number is also commonly referenced as 5422 in catalog listings.

Key Features

  • NGK Standard Spark Plug, part number BR8ES / 5422
  • Copper center electrode core for dependable conductivity
  • Nickel center and ground electrode tip materials
  • 5,000 ohm resistor for ignition system noise suppression
  • Standard ground electrode design with one ground electrode
  • Flat seat design, 14.00 mm thread diameter, .75 reach
  • Pre-gapped to .032 for straightforward setup
  • 13/16 hex size with removable nut terminal

Product Details

The NGK Standard Spark Plug line is built around OE-style construction and broad vehicle coverage. For Porsche 911 applications, BR8ES 5422 provides a conventional spark plug design with a copper core for heat transfer and nickel electrode materials for reliable everyday ignition service. The flat seat and standard configuration make it a direct-style replacement for the listed 1968 and 1970-1971 Porsche 911 fitments.

This part cross-references Champion Spark Plug 880 for the same application.

What It Helps Address

  • Hard starting caused by worn or fouled spark plugs
  • Rough idle from weak or inconsistent spark output
  • Misfire conditions related to degraded ignition performance
  • Reduced throttle response from aged plugs
  • Ignition noise concerns in resistor-equipped systems

Installation Notes

Verify the specified gap before installation and confirm the plug seat type, thread diameter, reach, and heat range match the engine requirements. For these Porsche 911 applications, follow the vehicle service specification for gap and torque, and inspect plug wires, caps, and ignition components at the same time to avoid repeat misfire issues.

Quality Assurance

NGK is a long-established OE supplier and spark plug manufacturer with extensive coverage across automotive, motorcycle, marine, and small engine applications. The BR8ES 5422 is produced to support original-equipment-level durability and operational performance standards.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
1971Porsche911—2.2LH6N/AGap 0.024"; OE Equivalent Design; Standard Spark Plug
1971Porsche911E2.2LH6N/AGap 0.024"; OE Equivalent Design; Standard Spark Plug
1970Porsche911E2.2LH6N/AGap 0.024"; OE Equivalent Design; Standard Spark Plug
1968Porsche911—2.0LH6N/AGap 0.024"; OE Equivalent Design; Standard Spark Plug
Directly replaces or cross-references 45 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4033AP Exhaust — 7530Carlson — 7707Champion Spark Plug — 880FEL-PRO — 402NGK — 5422Spectra Premium — F8C065-01402-40880C999-06910-P9-009370409482-0012109482-0034892070-102192070-102292070-207892070-370294701-0020494702-0020494703-0020498079-5881698079-5884698079-588767381558017538616121765123820687354331093310AGR1XF8RCON3QN3QN3CR41CSLR42CXLR42XLRN3RN3CS40XLRS42XLRTY26716W24ESRW24ESR-UWR4CC