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Part #: 97312

NGK 97312 Spark Plug

Laser Iridium Spark Plug
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Laser Iridium Spark Plug
Fitment: Hyundai, Elantra
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NGK Laser Iridium Spark Plug for Hyundai Elantra

NGK Laser Iridium Spark Plug 97312 is built for precise ignition performance in select 2017-2020 Hyundai Elantra applications. It combines an iridium center electrode tip with a copper core and a standard ground configuration to support consistent spark delivery and dependable engine operation.

Key Features

  • Laser Iridium spark plug from NGK
  • Iridium center electrode tip material for stable ignition performance
  • Copper center electrode core material
  • Standard ground configuration with one ground electrode
  • Flat seat type and 12.00 mm thread diameter
  • 5/8 hex size, 26.5 reach, and .028 pre-gap size
  • Manufacturer heat range 9
  • Non-removable nut electrical terminal type

Product Details

NGK 97312 is part of the Laser Iridium Spark Plug line, a product family focused on OE-style ignition performance and durability. NGK has long supplied spark plugs for domestic and import vehicles in North America, and this plug reflects that OE-oriented approach with materials and dimensions selected for modern engine requirements. It is a direct-fit spark plug for 2017-2020 Hyundai Elantra models listed in the fitment data, including applications noted for the 42,000-mile OE manufacturer recommended service interval. This part cross-references Four Seasons (e.g., 97312) for the same application.

What It Helps Address

  • Hard starting caused by worn or fouled spark plugs
  • Rough idle from inconsistent ignition output
  • Misfire conditions related to degraded plug electrodes
  • Reduced throttle response from weak spark delivery
  • Service replacement for Hyundai Elantra ignition maintenance

Installation Notes and Tips

Compatible With 2017-2020 Hyundai Elantra, N/A. Verify the specified gap and thread reach before installation, and confirm the flat seat design matches the cylinder head specification. Use proper spark plug service procedures to avoid thread damage and ensure correct torque during installation. For Hyundai Elantra ignition service, confirm the engine application against the vehicle’s service information before replacing the plug.

Quality Assurance

NGK is a major OE spark plug supplier with extensive North American manufacturing and distribution support. The brand’s OE legacy and automotive-focused engineering make NGK 97312 a technical replacement choice for drivers maintaining factory-style ignition performance in select Hyundai Elantra models.

BrandNGK
Part Number97312
PositionLaser Iridium Spark Plug
Ground ConfigurationStandard
Electrical Terminal TypeNon-removable nut
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Pre-Gap Size.028
Ground Electrode Quantity1
Hex Size5/8
Insulator Height51.00
Manufacturer Heat Range9
Seat TypeFlat
Reach26.5
Thread Diameter12.00
Part NumberIlkr9q7g
Stock Number97312

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020HyundaiElantra1.4LL4N/A42,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2019HyundaiElantra1.4LL4N/A42,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2018HyundaiElantra1.4LL4N/A42,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2017HyundaiElantra1.4LL4N/A42,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

97312

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.