Drag Specialities NGK style BPR4ES-11 Spark Plugs; Fits: > 84-99 Evo Bigtwin; 78-84 Shovelhead (hotter tip)
Drag Specialities NGK style BPR4ES-11 Spark Plugs; Fits: > 84-99 Evo Bigtwin; 78-84 Shovelhead (hotter tip)
- Plugs have a unique look with a black ceramic body and bold red logo/script
- Insulator is made of 95% pure alumina, features strong resistance to heat shock and superior insulation
- Multi-rib design of the insulator eliminates flashover
- Nickel-plated housing prevents oxidation and corrosion
- Multi-layer gaskets and heat crimping process ensure a leak-free, gas-tight seal
- Copper core electrode prevents oxidation and corrosion, has good electrical and heat conductivity and creates long spark plug service life
| HEAT RANGE | 4 |
| MODEL | Copper |
| TERMINAL CONFIGURATION | Removable Nut |
| THREAD SIZE | 12 mm |
| STYLE | BPR4ES-11 |
| TYPE | Resistor Type |
| UNITS | Pair |
| PRODUCT NAME | Spark Plug |
| CENTER ELECTRODE TYPE | Standard |
| ELECTRODE TIP MATERIAL | Nickel Alloy |
| CENTER ELECTRODE PROJECTION | Projected |
| THREAD REACH | 19,1 mm (3/4") |
| HEX SIZE | 16 mm (5/8") |
| GROUND ELECTRODE CONFIGURATION | Single |
| GROUND ELECTRODE SHAPE | Standard |
Part Number:
21030198: Fits: > 84-99 Evo Bigtwin; 78-84 Shovelhead (hotter tip)
