NGK Laser Platinum Spark Plug Box of 4 (PZKER7B8EGS) - 93231

The NGK Laser Platinum Spark Plug Box of 4 (PZKER7B8EGS) – MPN 93231 is a direct OE-style replacement spark plug engineered by NGK for reliable, long-lasting ignition performance. Laser-welded platinum construction on both the center and ground electrodes gives this plug the durability and consistency drivers expect from a factory-quality ignition component, making it a smart choice whether you're doing routine maintenance or refreshing ignition parts on a higher-mileage engine.

Key Features & Benefits

• Laser-welded dual platinum surfaces on the center and ground electrodes slow electrode wear, helping maintain a stable idle and consistent spark over the plug's service life.
• Fine-wire platinum center electrode improves ignitability, which supports smoother starts and more complete combustion.
• Trivalent metal plating on the shell provides anti-corrosion and anti-seizing protection, making the plug easier to remove during future service intervals.
• Corrugated ribs on the insulator help prevent flashover for reliable spark delivery.
• Pure alumina silicate ceramic insulator offers superior strength and better heat transfer away from the firing tip.
• Copper core electrode aids in pulling heat away from the tip for more reliable starts and reduced risk of overheating.
• Triple seal construction helps prevent gas leakage from the combustion chamber.
• Engineered as an OE-style fitment part, supporting stable idling, improved anti-fouling resistance, better fuel efficiency, and lower emissions compared to standard nickel plugs.

Specifications

• Part Number (MPN): 93231 / SKU: PZKER7B8EGS
• Quantity: Box of 4 spark plugs
• Shell Thread Diameter: 12mm | Thread Pitch: 1.25mm
• Seat Type: Gasket | Reach: 19mm (3/4")
• Hex Size: 5/8" (16mm) | Terminal Type: Cup
• Gap: .031" (0.8mm)
• Center Electrode: Platinum, Fine Wire, 1.0mm, Extended Projection
• Ground Electrode: Platinum, Standard type
• Resistor: Yes, 10k Ohm | Heat Range: 7
• Features: Extended Metal Shell, Copper Gasket
• Torque Spec: 10.8–18 lb.ft. (cast iron head) / 10.8–14.5 lb.ft. (aluminum head)

Fitment

This NGK Laser Platinum plug (PZKER7B8EGS / 93231) is commonly used across Volkswagen Auto Group (VAG) applications, including select Audi, SEAT, Skoda, and Volkswagen vehicles. Because exact engine and model-year fitment varies by application, confirm compatibility with your specific vehicle's engine code before ordering — our team can help verify fitment if you're unsure.

What's in the Box

• 4x NGK Laser Platinum Spark Plugs (PZKER7B8EGS)

Why Buy from ThreePiece.us

ThreePiece.us backs every order with free shipping and flexible financing through Affirm, so you can get the ignition parts you need without paying it all upfront. Our team is available to help confirm fitment before you buy, so you order the correct spark plug the first time and avoid the hassle of returns.

Frequently Asked Questions

Q: How many spark plugs come in this listing?
A: This listing is for a box of 4 NGK Laser Platinum spark plugs (PZKER7B8EGS), enough for a typical 4-cylinder engine.

Q: What makes Laser Platinum plugs different from standard nickel plugs?
A: The laser-welded platinum electrodes wear more slowly than standard nickel electrodes, supporting a more stable idle, better anti-fouling resistance, improved fuel efficiency, and lower emissions over the plug's service life.

Q: What's the recommended spark plug gap and torque for installation?
A: This plug has a factory gap of .031" (0.8mm). Recommended torque is 10.8–18 lb.ft. for cast iron cylinder heads and 10.8–14.5 lb.ft. for aluminum heads.

Q: I'm not sure if this plug fits my vehicle — can I get help?
A: Yes. Contact the ThreePiece.us team with your vehicle's year, make, model, and engine so we can help confirm the correct spark plug before you order.