NGK
More Information for NGK 3186
{Alternate Inventory Numbers: TR5GP}
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NGK 3186  
($1.72/Each)
Price
$0.00
Core
+ Sold in packs of 1x1
Pack
$1.72
Total
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NGK 3186 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialPlatinum
Electrical Terminal TypeNon-Removable Nut
Gap Size (IN).040
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTrapezoid
Hex Size (IN)5/8
Insulator Height (mm)53.00
Manufacturer Heat Range5
Part NumberTR5GP
Reach (IN).708
Resistance (ohms)5000
Seat TypeTapered
Stock Number3186
Thread Diameter (MM)14.00
G-Power; Pre-Set Gap: 0.040"
NGK G-Power® platinum spark plugs feature a single platinum tip, 98% pure copper core and a .6 mm fine-wire center electrode for more focused sparks and better ignitability.

Features & Benefits:
  • Trapezoidal ground electrode allows for higher ignitability and reduces quenching
  • High-grade alumina silicate ceramic for stronger insulation to reduce dielectric punch-through (caused by spark exiting through side of ceramic)
  • Trivalent plating means no anti-seize required
  • Cold-rolled threads prevent cross-threading and damage to cylinder heads
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.
Which NGK Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel V-Power
Copper
Platinum G-Power
Platinum
★★ ★★★★
Double Platinum Laser
Double Platinum
★★★★★ ★★ ★★
Iridium IX
Iridium IX
★★★ ★★★★★ ★★
Iridium Laser
Iridium Laser
★★★★★★ ★★★★ ★★★
Ruthenium HX
Ruthenium
★★★★★★★ ★★★★★ ★★★★
Videos

Check, Set & Adjust Spark Plug Gaps

OEM / Interchange Numbers: AP103

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

Regular Inventory Warranty Information:
60 Days