NGK
Laser Iridium High Ignitability Spark Plug

NGK 6215 Spark Plug

Brand NGK 6215
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium
Electrical Terminal Type Non-Removable Nut
Ground Configuration Standard
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Square Platinum Electrode - High Ignitability
Hex Size 5/8
Insulator Height 50.00
Manufacturer Heat Range 6
Part Number SILZKR6B11
Pre-Gap Size .044
Reach 26.5
Resistance 5000
Seat Type Flat
Stock Number 6215
Thread Diameter 12.00
Product line Laser Iridium High Ignitability Spark Plug
Fits Hyundai and Kia · 5 vehicles

Laser iridium design. Delivers precise ignition and dependable performance.

High ignitability electrode. Promotes efficient spark delivery for consistent combustion.

OE supplier heritage. Built by NGK, a long-time original equipment manufacturer.

Cross-references AMS Automotive 6215 for the same application. See all 1.

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NGK Laser Iridium Spark Plug 6215

NGK 6215 is a Laser Iridium High Ignitability spark plug built for precise ignition performance and OE-style service intervals. It uses an iridium center electrode, a square platinum ground electrode tip, and a 0.044 in. pre-gap to support consistent spark delivery in the applications listed below.

Key Features

  • Laser Iridium High Ignitability design for stable ignition performance
  • Iridium center electrode tip with copper core for efficient spark transfer
  • Square platinum ground electrode tip for high ignitability operation
  • 5,000 ohm resistance
  • Flat seat, 12.00 mm thread diameter, 26.5 mm reach, 5/8 hex
  • Non-removable nut terminal and single ground electrode configuration
  • OE-style service intervals noted by the vehicle manufacturer in listed applications

Product Details

The NGK Laser Iridium High Ignitability spark plug line is built around OE-focused ignition performance for modern engines that require precise spark control. Part number 6215, also referenced as SILZKR6B11, is specified for select Hyundai and Kia applications including the 2011 Hyundai Elantra, 2009 Hyundai Genesis, 2010-2011 Kia Borrego, and 2009 Kia Borrego. This spark plug is engineered with a 0.044 in. gap and the listed heat range 6 configuration to match the original equipment requirements in those vehicles.

NGK has long supplied original equipment spark plugs for domestic and import vehicles in North America, and this part reflects that OE-oriented approach. This part cross-references AMS Automotive 6215 for the same application.

Common Issues This Part Can Address

  • Hard starting caused by worn or inconsistent spark plugs
  • Rough idle from degraded ignition performance
  • Misfire conditions related to plug wear or incorrect gap
  • Reduced throttle response from weak spark delivery
  • Service replacement needs at the manufacturer-recommended interval

Installation Notes

Verify the vehicle application before installation and confirm the plug gap matches the engine specification. Use care when threading the plug into the cylinder head to avoid cross-threading, and torque to the vehicle manufacturer’s specification. For best results, replace spark plugs on engines that call for high ignitability plugs with the same plug type and heat range listed for the application.

Quality Assurance

NGK is a major OE spark plug supplier with decades of automotive manufacturing experience and a reputation built around original equipment standards. Part number 6215 is produced to support durability and operational performance in the listed Hyundai and Kia applications.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2011HyundaiElantra1.8LL4N/AOE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Gap 0.044"; Actual OE Manufacturer; 105,000 mi OE Mfr Recommended Service Interval; Laser Iridium High Ignitability Spark Plug
2011KiaBorrego3.8LV6N/AOE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Gap 0.044"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium High Ignitability Spark Plug
2010KiaBorrego3.8LV6N/AOE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Gap 0.044"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium High Ignitability Spark Plug
2009HyundaiGenesis3.8LV6N/ABuild Date From 5/1/2008 To 3/17/2009; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Gap 0.044"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium High Ignitability Spark Plug
2009KiaBorrego3.8LV6N/AFrom 5/16/2008; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs.; Gap 0.044"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium High Ignitability Spark Plug
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 6215