NGK 5592 Spark Plug

NGK Laser Platinum Spark Plug 5592

NGK Laser Platinum Spark Plug 5592 is an OE-style ignition component built for precise spark delivery and long service life. It is a direct-fit spark plug for select Audi applications, including Audi A4, A4 Quattro, A6, A6 Quattro, RS4, and R8 models listed below.

Key Features

• Laser Platinum center electrode tip material for stable ignition performance
• Copper center and ground electrode core materials for efficient heat transfer
• Hybrid ground configuration with 3 ground electrodes
• Pre-gapped at 0.036 in. for listed applications
• 14 mm thread diameter, 0.75 in. reach, and flat seat design
• 5/8 in. hex size with non-removable nut terminal
• 1000 ohm resistance and manufacturer heat range 7

Product Details

NGK Laser Platinum Spark Plug 5592, also identified as PFR7W-TG, is engineered to match OE specifications for select Audi engines. NGK is a major OE spark plug supplier in North America, and this plug reflects that original-equipment focus with a platinum firing tip, copper core construction, and a factory-style 0.036 in. gap. It is listed for 2005-2010 Audi A4, A4 Quattro, A6, A6 Quattro, RS4, and R8 applications, with fitment notes calling out OE manufacturer status and service intervals of 35,000 or 55,000 miles depending on the vehicle.

This part cross-references Volkswagen/Audi OE number 101 905 621 C for the same application.

What It Helps Address

• Misfires caused by worn or fouled spark plugs
• Hard starting from weak ignition output
• Rough idle and inconsistent combustion
• Reduced throttle response from degraded spark quality
• Maintenance replacement for Audi ignition service intervals

Installation Notes and Tips

Verify engine code and application before installation. Confirm the plug gap matches the listed 0.036 in. specification for the vehicle, and inspect coil boots and ignition components during service. Use the correct 5/8 in. spark plug socket and torque to the vehicle manufacturer’s specification. This plug is listed for Audi A4, A4 Quattro, A6, A6 Quattro, RS4, and R8 models in the years shown in the fitment data.

• Fits 2008-2010 Audi R8, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2008-2009 Audi A4 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2005 Audi A4 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2008 Audi A4, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2008 Audi A6, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2008 Audi A6 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2005 Audi A6 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2007-2008 Audi RS4, N/A; Gap 0.036"; Actual OE Manufacturer; 55,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2006-2007 Audi A4, N/A; Gap 0.036"; Actual OE Manufacturer; 35,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2006-2007 Audi A4 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 35,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2006-2007 Audi A6, N/A; Gap 0.036"; Actual OE Manufacturer; 35,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug
• Fits 2006-2007 Audi A6 Quattro, N/A; Gap 0.036"; Actual OE Manufacturer; 35,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug

Quality Assurance

NGK’s OE supplier background and long-standing ignition manufacturing experience support consistent fit and performance for select Audi ignition service needs. Part number 5592 is built to OE-style specifications for the listed applications.