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NGK 3691

NGK Iridium IX Spark Plug
Brand: NGK
Stock # 3691
Oxygen Sensor - 1 Year Warranty
Weight: 0.09 Lb. ( 0.04 Kg.)
Dimensions: 3.3 x 0.9 x 0.8 '' ( 8.4 x 2.4 x 2.1 cm)
UPC: 00087295136911
Condition: New
In Stock
$21.07
$10.73

NGK Iridium IX Spark Plug

NGK Iridium IX spark plugs are designed specifically for the performance enthusiast. Iridium IX spark plugs offer extreme ignitibility, improved throttle response and superior anti-fouling. The fine-wire iridium center electrode ensures high durability and a consistently stable spark. A special taper-cut ground electrode shape allows more area for faster flame expansion. Iridium alloy has an extremely high melting point, perfect for today's high-performance engines. Trivalent metal plating provides superior anti-corrosion and anti-seizing properties.

  • SHO: NGK Iridium IX Plug
  • INV: NGK Iridium IX Spark Plug
  • ASM: 2006-2000 ASTON MARTIN, 2006 CHEVROLET, 2009-1996 FORD, 2006-2002 JAGUAR, 2005 LINCOLN, 2005-2003 MAZDA, 2007-2003 MERCURY (COLDER HEAT RANGE THAN OE)
  • DEF: Spark Plug
  • ABR: Spark Plug
Country of Origin (Primary)JP
Remanufactured PartN
Harmonized Tariff Code (HTS)8511100000
Pallet Layer Maximum9
MSDS Required FlagN
Maximum Cases per Pallet Layer12
Emission Code 1
National Popularity DescriptionNon-Stock Item
1156Standard
55253.00
548Iridium
1155Taper Cut
55714.00
11325000
5490.040
1159Nickel Core
5538
547Copper Core
5560.708
555Tapered
5501
5515/8"