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This box of four delivers a factory-style platinum spark plug engineered for stable idling, cleaner combustion, and dependable starts across a wide range of gasoline engines. Each plug is manufactured to strict quality tolerances so your ignition system performs the way the vehicle maker intended.
| Detail | Value |
|---|---|
| Gap | 0.040 in (1.0mm) |
| Heat Range | 6 |
| Thread Size | M14 x 1.25 |
| Reach | 0.75 in (19mm) |
| Hex Size | 5/8 in (16mm) |
| Resistor | Yes, 5000 ohm |
| Seat Type | Flat with gasket |
| Electrode Material | Platinum tip, copper core |
NGK is a global leader in ignition technology, supplying spark plugs to major vehicle manufacturers as original equipment for decades. Its engineering standards for materials, gap precision, and durability carry directly into the aftermarket parts sold under the NGK name.
The PFR6H-10 is an NGK Laser Platinum spark plug with a heat range of 6, a 0.040 inch gap, and a platinum pad on the ground electrode. It is designed as a direct OE style replacement for engines that call for this heat range and thread configuration.
How many spark plugs come in this box?This listing includes a box of four spark plugs, enough for a typical four cylinder engine tune up.
What is the gap setting on this spark plug?The factory pre set gap is 0.040 inch (1.0mm). Always verify the gap matches your vehicle manufacturer specification before installation.
Does this spark plug have a resistor?Yes. It is a resistor style plug rated at 5000 ohm to help suppress radio and electronic interference.
What thread size does this spark plug use?It uses an M14 x 1.25 thread with a 0.75 inch reach and a 5/8 inch hex size.
Is this a platinum or iridium spark plug?This is a Laser Platinum plug. The ground electrode features a platinum pad while the center electrode uses a copper core for heat dissipation.
Can this plug improve fuel efficiency?Platinum spark plugs are engineered for consistent sparking and stable combustion, which supports smoother idling and can help maintain factory fuel efficiency over the life of the plug.
How long do NGK Laser Platinum plugs typically last?Platinum plugs generally offer longer service life than standard copper or nickel plugs due to the wear resistant platinum pad, though actual interval depends on the vehicle manufacturer recommendation.
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