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Key Features
Frequently Asked Questions
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Bosch precious metal spark plugs are pre-gapped at the factory and do not require a gap adjustment. Adjusting the gap may damage the center and ground electrodes.
Always torque to the proper specification printed on the spark plug package. Bosch EVO spark plugs are specially indexed and must be torqued using a torque wrench.
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Product Details
EVO Spark Plugs (8508)
8508
$ 0.00
- 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
Electrical Terminal Type | Non-Removable Nut |
Seat Type (Spark Plug) | Tapered |
Base Attributes | |
---|---|
Warranty | 7 Years |
Vehicle Type | Passenger |
Short Style | No |
Center Electrode Tip Material | Iridium |
Gap Size | .7 |
Package Contents | Bosch EVO Spark Plug |
Spark Plug Type | 4-Cycle |
Ground Electrode Core Material | Copper |
Resistor | Yes |
Thread Diameter | 12 |
Hex Size | 14 |
Ground Electrode Tip Design | Standard |
Ground Electrode Quantity | 1 |
Resistance | 6000 |
Reach | 25 |
Manufacturer Heat Range | 5 |
Engineering Details | |
---|---|
Engineering Number | 0242145606 |
Is Partnumber Engineeringnumber Mx | true |
Other Attributes | |
---|---|
Service Life vs Standard Copper Spark Plugs | 4x |
Package Quantity | 1 |
Product Length | 3.267717 in |
New Or Remanufactured | New |
Center Electrode Core Material | Nickel-Chromium-Iron and Copper |
Outdoor Power Equipment Application | No |
Product Width | 0.625984 in |
Insulator Type | Projected |
NA | |
Ground Configuration | Standard |
Prop 65 Warning Label Required? | No |
Insulator Material | Ceramic |
NA | |
Ground Electrode Tip Material | Platinum and Nickel-Chromium-Iron and Copper |