The Bosch Spark Plug (part number 8501) is a direct-fit replacement for 2013-2026 Audi, Volkswagen, and Porsche vehicles with 1.8L, 2.0L, and 4.0L engines.
Features:
- Thermomechanical strength: Improved insulator design features provide greater resistance to irregular burns and mega-knocking
- Mechanical strength: Improved design features on the insulator and housing increase the head bending strength, reducing risk of damage during installation and optimizing gas seal tightness in the cylinder head
- Electrical strength: Improved design features on the insulator increase the dielectric strength (>45kV)
- Long service life: The iridium alloy in the firing pin of the center electrode and platinum-iridium alloy on the ground electrode reduces the wear on the electrodes and increases the service life of the spark plug
- Corrosion defense: Improved corrosion protection through the use of a process developed by Bosch for nickel coating of the spark plug housing
- Important: Always torque to the proper specification using a torque wrench
Specifications:
| Center Electrode Core Material | Copper |
| Center Electrode Material | Iridium |
| Ground Electrode Material | Copper |
| Ground Electrode Core Material | Platinum |
| Number of Ground Electrodes | 1 |
| Hex Size | 16 |
| Heat Range | 5 |
| Seat Type | Flat |
| Insulator Material | Ceramic |
| Resistor | Yes |
| Terminal Type | Cup |
| Terminal Style | Hex |
| Seat/Washer Type | Flat |
| Automotive Item Weight (lbs) | 0.105822 lb |
Fits: 2013-2026 Audi, Volkswagen, and Porsche models including A3 Quattro, A6 Quattro, Q7, A3, A4 Quattro, A4 allroad, RS3, A5 Sportback and more - 1.8L, 2.0L, and 4.0L engines. Confirm your year, make, model, and engine before ordering.
