Platinum tipped center electrode delivers precision firing, reduced gap erosion, increased durability, and improved fuel efficiency over the life of the plug. Copper core improves resistance to fouling.
Part Number: AP5503
| Shell | |
| Thread Diameter | 14mm |
| Thread Pitch | 1.25mm |
| Seat Type | Gasket |
| Reach | 19mm (3/4-Inch) |
| Hex Size | 5/8-Inch (16mm) |
| Terminal Type | Solid |
| Gap | .045-Inch (1.15mm) |
| Center Electrode | |
| Material | Platinum |
| Type | Necked Down |
| Projection | Projected |
| Ground Electrode | |
| Material | Nickel |
| Type | Standard |
| Quantity | 1 |
| Specifications | |
| Resistor | Yes |
| Resistor Value | 4k Ohm |
| Heat Range | 2 |
| Torque Specs | Cast Iron: 26-29 lb. ft. Aluminum: 15-22 lb. ft. |
| Longevity | 50k miles |
Autolite Platinum Spark Plug - AP5503
$10.99
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