NGK 7781 Spark Plug

NGK Laser Platinum Spark Plug 7781

NGK Laser Platinum Spark Plug 7781 is an OE-style ignition component for Chrysler, Dodge, Plymouth, and Volkswagen applications that call for a 0.052 in. gap and a flat seat design. Built with a platinum center electrode tip and copper core construction, it supports consistent spark delivery for everyday driving and long service intervals.

Key Features

• Laser Platinum spark plug from NGK
• Part number 7781; NGK ZFR5LP-13G
• Platinum center electrode tip with copper center and ground electrode cores
• Standard ground electrode tip design and standard ground configuration
• 10000 ohm resistance for ignition system noise control
• Pre-gapped at 0.052 in.
• 14 mm thread diameter, 5/8 in. hex size, flat seat, 0.75 in. reach

Product Details

NGK’s Laser Platinum line is built around OE replacement requirements, with a platinum firing tip for stable ignition performance and copper core materials that support heat transfer. This spark plug is specified for a wide range of Chrysler 300, Dodge Charger, Dodge Magnum, and Chrysler Pacifica applications, along with other listed vehicles from 1997 through 2011. The part number 7781 is also referenced as ZFR5LP-13G, making it easier to verify the correct plug during maintenance or tune-up work.

This part cross-references Mopar SZFR5LP13G and Bosch 8123 for the same application.

Used For

• Replacing worn spark plugs that cause rough idle
• Restoring ignition performance after misfire-related drivability issues
• Addressing hard starting tied to plug wear or gap growth
• Supporting fuel economy loss caused by weak spark output
• Maintaining OE-style service intervals on listed Chrysler, Dodge, Plymouth, and Volkswagen models

Installation Notes

Verify engine application, thread diameter, reach, seat type, and gap before installation. This plug is pre-gapped at 0.052 in., but final verification is recommended before use. Confirm the correct fitment for your vehicle, especially on Chrysler 300, Dodge Charger, and Dodge Magnum applications where multiple ignition part numbers may exist by engine configuration.

• Fits 2011 Dodge Nitro, N/A
• Fits 2007-2010 Chrysler 300, N/A
• Fits 2007-2010 Chrysler Sebring, N/A
• Fits 2008-2010 Chrysler Town & Country, N/A
• Fits 2008-2010 Dodge Avenger, N/A
• Fits 2009-2010 Dodge Challenger, N/A
• Fits 2007-2010 Dodge Charger, N/A
• Fits 2008-2010 Dodge Grand Caravan, N/A
• Fits 2009-2010 Dodge Journey, N/A
• Fits 2008-2010 Dodge Nitro, N/A
• Fits 2009-2010 Volkswagen Routan, N/A
• Fits 2008 Chrysler Pacifica, N/A
• Fits 2007-2008 Dodge Magnum, N/A
• Fits 2004-2007 Chrysler Pacifica, N/A
• Fits 2007 Dodge Nitro, N/A
• Fits 2006 Chrysler 300, N/A
• Fits 2006 Dodge Charger, N/A
• Fits 2006 Dodge Magnum, N/A
• Fits 2005 Chrysler 300, N/A
• Fits 2005 Dodge Magnum, N/A
• Fits 2003-2004 Chrysler 300M, N/A
• Fits 2003-2004 Chrysler Concorde, N/A
• Fits 2003-2004 Chrysler Intrepid, N/A
• Fits 2003-2004 Dodge Intrepid, N/A
• Fits 2002 Chrysler 300M, N/A
• Fits 2002 Chrysler Concorde, N/A
• Fits 2002 Chrysler Intrepid, N/A
• Fits 2002 Chrysler Prowler, N/A
• Fits 2002 Dodge Intrepid, N/A
• Fits 1999-2001 Chrysler 300M, N/A
• Fits 1998-2001 Chrysler Concorde, N/A
• Fits 1998-2001 Chrysler Intrepid, N/A
• Fits 1999-2001 Chrysler LHS, N/A
• Fits 2001 Chrysler Prowler, N/A
• Fits 1998-2001 Dodge Intrepid, N/A
• Fits 2001 Plymouth Prowler, N/A
• Fits 1999-2000 Plymouth Prowler, N/A
• Fits 1997 Plymouth Prowler, N/A

Quality Assurance

NGK is a major OE spark plug supplier in North America with decades of automotive manufacturing experience. The brand’s OE-focused production and broad vehicle coverage support consistent part selection for ignition service on listed Chrysler, Dodge, Plymouth, and Volkswagen models.