NGK 5838 Spark Plug

NGK Laser Platinum Spark Plug 5838

NGK Laser Platinum Spark Plug 5838 is an OE-style ignition component built for stable spark delivery, consistent resistance, and long service life. It is a direct-fit spark plug option for a wide range of Hyundai and Kia applications, including Accent, Elantra, Sonata, Tucson, Rio, Sportage, and Optima models.

Key Features

• Laser Platinum center electrode tip for durable spark performance
• 5000 ohm resistance for ignition system noise control
• 0.044 in pre-gap for listed Hyundai and Kia applications
• 14 mm thread diameter with 5/8 in hex size
• Flat seat design with 0.75 in reach
• Copper center electrode core and nickel ground electrode core
• Non-removable nut terminal for standard ignition wire connection
• OE-style replacement for many Hyundai and Kia engine applications

Product Details

NGK’s Laser Platinum line is built around OE replacement requirements, with a platinum-tipped center electrode for dependable ignition performance and a standard ground electrode layout. Part number 5838, also identified as PFR5N-11, is specified with a 0.044 inch gap and is listed across multiple Hyundai and Kia platforms from 1993 through 2011. This spark plug is used in applications such as 1995-2011 Hyundai Accent, 2001-2006 Hyundai Elantra, 1999-2004 Hyundai Sonata, 2005-2010 Kia Sportage, and 2001-2006 Kia Optima. This part cross-references BBB Industries 5838 for the same application.

Common Uses

• Restoring weak or inconsistent spark output
• Addressing rough idle caused by worn spark plugs
• Correcting misfire conditions tied to plug wear or gap drift
• Replacing plugs at the OE-recommended service interval
• Maintaining ignition performance in Hyundai and Kia engines

Installation Notes

Verify the vehicle application before installation and confirm the specified gap of 0.044 inches for the listed fitments. Use the correct 5/8 inch spark plug socket and follow the manufacturer’s torque specification for the engine. Check the ignition system, plug wires, and coil condition during service to help prevent repeat misfire concerns. Fits 1995-2011 Hyundai Accent, N/A; Fits 2001-2006 Hyundai Elantra, N/A; Fits 1999-2004 Hyundai Sonata, N/A; Fits 2005-2010 Kia Sportage, N/A; Fits 2001-2006 Kia Optima, N/A.

Quality Assurance

NGK is a major OE spark plug supplier with extensive North American coverage for domestic and import vehicles. The brand’s manufacturing focus supports original equipment standards for durability and operational consistency across automotive applications.