Bosch 8184 Spark Plug

Bosch OE Fine Wire Double Platinum Spark Plug

Bosch 8184 is an OE Fine Wire Double Platinum spark plug built for steady ignition performance and extended service life. It uses platinum on both the center and ground electrodes to reduce gap wear while maintaining OE-style specifications for the listed Audi, Volkswagen, and Porsche applications.

Key Features

• Fine wire center electrode with platinum tip for consistent spark delivery
• Platinum inlay on the ground electrode to reduce gap erosion
• Resistor design with 6000 ohms resistance
• Projected ceramic insulator for stable combustion chamber exposure
• Flat seat, 12 mm thread diameter, 19 mm reach, and 16 mm hex size
• J-gap ground configuration with standard ground electrode tip design
• OE Fine Wire Double Platinum product line from Bosch

Detailed Description

Bosch 8184 is engineered as a double platinum spark plug for engines that call for OE-style ignition performance and durability. The fine wire center electrode and platinum ground electrode tip help maintain a stable gap over time, which supports reliable firing characteristics and long-term service life. This Bosch 8184 spark plug is a direct-fit choice for select 2004-2009 Audi A3 Quattro and TT Quattro models, 2004-2008 Volkswagen R32 and Eos applications, plus 2004-2006 Porsche Cayenne and Volkswagen Touareg vehicles listed in the fitment data.

The OE Fine Wire Double Platinum line focuses on factory-style construction with platinum on both electrodes, copper core materials, and a resistor design for controlled electrical performance. For buyers searching Bosch 8184 spark plug replacement for Audi A3 Quattro, Bosch 8184 for Volkswagen Touareg, or Bosch 8184 for Porsche Cayenne ignition service, this part matches the listed OE-style specifications and fitment.

What It Helps Address

• Misfires caused by worn or eroded spark plug gaps
• Hard starting from weak ignition output
• Rough idle related to inconsistent spark delivery
• Reduced ignition performance from aged plugs
• Service intervals affected by electrode wear

Installation Notes and Tips

Verify the engine calls for a 12 mm thread, flat seat, 19 mm reach, and 16 mm hex before installation. Check the pre-gap size of .9 and confirm the heat range 7 specification matches the engine requirements. Use proper spark plug service procedures, including careful thread engagement and torque to the vehicle manufacturer’s specification. This part cross-references Bosch 8184 for the same application.

Quality Assurance

Bosch designs this spark plug to meet Original Equipment specifications for double platinum applications. The platinum firing pin and platinum ground electrode inlay are used to improve durability and help maintain performance over time in the listed Audi, Volkswagen, and Porsche fitments.