18846-10060
18846-10060
Hyundai, Kia
2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010
Electrical System
Spark Plug
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Product Description
The 18846-10060 iridium spark plug is engineered for Hyundai and Kia Gamma and Nu series gasoline engines. Manufactured to match OEM dimensional and performance specifications, this component caters to commercial procurement demands of auto parts distributors, auto repair workshops and fleet maintenance service providers. It features an iridium center electrode and laser-welded ground electrode, with factory pre-set electrode gap to support efficient batch installation. Each unit is produced under standardized quality control systems for consistent performance across engine operating cycles.
Item | Details |
OE Number | 18846-10060 |
Official Name | PLUG ASSY-SPARK |
Cross Reference Codes | SILZKR6B-10E, 18846-10061 |
Applicable Engines | Hyundai & Kia Gamma / Nu Series 1.4L / 1.6L GDI/MPI gasoline engines (G4FA, G4FC, G4NA) |
Compatible Vehicle | Hyundai Elantra (Avante) 2010-2019 and other models with the above engine platforms |
Item | Details |
Thread Spec | M14 × 1.25 |
Hex Wrench Size | 16 mm |
Pre-set Electrode Gap | 1.0 mm |
Standard Installation Torque | 28 N·m |
Built-in Suppression Resistor | 5000Ω anti-RFI resistor |
Seat Type | Flat copper gasket seat |
Thread Reach Length | 19 mm |
Net Weight per piece | Approx 0.03 kg |
Single Pack Dimension | 120 × 22 × 22 mm |
Heat Range | 6 (medium heat value) |
Item | Details |
Center Electrode | Ultra-fine iridium micro tip |
Ground Electrode | Nickel alloy with laser welding structure |
Insulator | High-density high-purity alumina ceramic |
Shell Body | Zinc-plated anti-rust carbon steel |
Sealing Gasket | High-temperature resistant copper composite washer |
Production Standard | Matches Mobis OEM standard, compliant with IATF16949 automotive quality certification |
Service Life | Up to 100,000 km under ideal driving conditions; 60,000-80,000 km under normal driving conditions |
This spark plug follows 1:1 OEM dimensional design, with thread pitch, reach length, heat range and electrode gap fully complying with factory parameters. No manual gap adjustment is required under normal shipment conditions, and it fits original ignition coils and aluminum cylinder heads without thread leakage issues. This design streamlines installation procedures for commercial repair services.
The ultra-fine iridium center electrode generates concentrated spark under low voltage conditions, supporting stable cold start performance, steady idle and consistent full-load ignition output. This structure helps reduce cylinder misfire risk in low temperature environments. The laser-welded ground electrode adopts an optimized arc structure, which slows spark gap expansion caused by long-term high-temperature combustion erosion and maintains consistent ignition efficiency during service life.
The high-density alumina ceramic insulator resists thermal shock and high voltage breakdown, reducing the risk of electric leakage and carbon fouling under continuous high engine operating temperatures. The built-in 5kΩ suppression resistor eliminates radio frequency interference, and reduces signal disturbance to vehicle ECUs, audio systems and electronic sensors.
With medium heat range design, this spark plug balances heat dissipation to reduce cold carbon deposit and overheating ablation. It can burn off carbon sludge during regular driving to keep the combustion chamber clean. This structure supports complete air-fuel mixture combustion, which helps maintain stable engine fuel consumption levels and reduce exhaust emissions.
Replacing aged spark plugs with this model can resolve common ignition system issues including difficult cold start, random misfire, shaking idle, rising fuel consumption, weak acceleration and illuminated engine malfunction warning lights. It fits bulk stocking and routine tune-up service for compact sedan models with matching engine platforms.
For after-sales diagnosis and on-site maintenance, refer to the following fault judgment logic:
Engine misfire, rough idle and sluggish acceleration: Check for deformed spark gap from shipment impact, worn iridium center electrode from long-term operation, improper installation torque, or carbon/oil fouling on electrodes and insulator.
Carbon or oil fouling on spark plug: Inspect for engine oil consumption issues, frequent short-distance trips causing incomplete combustion, or rich fuel mixture and malfunctioning fuel injectors.
Difficult cold start or ignition failure: Check for cracked ceramic insulator leading to electric leakage, overly large spark gap resulting in weak spark, or rust and oxidation on the plug top terminal.
Cylinder head air leakage and thread seizing: Verify whether anti-seize compound was applied before installation, whether tightening torque meets standard, or whether over-torque has stripped cylinder head threads.
Premature electrode wear and short service life: Check for use of mismatched spark plugs, engine overheating with excessive combustion temperature, or abnormally high output voltage from faulty ignition coils.
Installation and fitment issues: Confirm part number matching, check for bent threads or damaged terminals from shipping collision, or residual carbon debris blocking the mounting hole.
Confirm the OEM number 18846-10060 matches the vehicle engine specification before procurement. Never manually bend the iridium electrode to adjust the gap. Always use a torque wrench for standardized tightening. Apply anti-seize grease only on the threads, and keep it away from the ceramic insulator and electrodes. Replace spark plugs as a complete set for each engine instead of single-piece replacement. After installation, run the engine for 5 minutes and test acceleration to rule out misfire issues.
Minor carbon fouling can be cleaned for temporary testing purposes. Oil-fouled plugs or plugs with melted electrodes must be replaced, as cleaning cannot restore stable ignition performance.
The electrode gap is pre-set at the factory. Only recheck with a feeler gauge after transportation. Do not pry the thin iridium electrode to adjust the gap manually.
For bulk procurement, packaging options include genuine (MOBIS) standard packaging, neutral aftermarket packaging and custom brand packaging. Customized packaging requires a minimum order quantity of 500 to 1000 units.
