NGK
More Information for NGK 5688
{Alternate Inventory Numbers: BCPR5EIX, 5688:8}
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NGK 5688  
$3.75
Price
 $0.00
Core
 + Sold in packs of 1x1
Pack
 $3.75
Total
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NGK 5688 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Gap Size (IN).032
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Hex Size (IN)5/8
Insulator Height (mm)53.00
Manufacturer Heat Range5
Part NumberBCPR5EIX
Reach (IN).75
Resistance (ohms)5000
Seat TypeFlat
Stock Number5688
Thread Diameter (MM)14.00
Iridium IX; Pre-Set Gap: 0.032"
The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast. Iridium's extremely high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

Features & Benefits:
  • Fine Iridium tip ensures high durability and a consistently stable spark
  • Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
  • Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
  • Tapered ground electrode increases ignitability and minimizes quenching
  • High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through (caused by spark exiting through side of ceramic)
  • Cold-rolled threads prevent cross-threading and damage to cylinder heads
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: 2985, 5664, 5958780, BCP5EVX, XP5503

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