
Vehicle Specific
Check if it fits by entering your vehicle info| Brand | Denso |
| Part Number | 4509 |
| Part Description | Platinum TT™ Spark Plug |
| Electrode Material | Platinum |
| Gap | .039" (1.0 mm) |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Titanium Enhanced Twin-Tip |
| Heat Range | 16 |
| Hex Size | 5/8" (16 mm) |
| Material | Nickel |
| Nominal Gap | 1 mm |
| Overall Height | JIS |
| Reach | 11.6 mm (.460") |
| Seat Type | Tapered |
| Spark Plug Reach | 11.6 mm |
| Terminal Type | Solid |
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 mm |
| UPC | 042511045095 |
| Wrench Diameter | 16 mm |
| Year Make Model | Trim | Engine |
|---|---|---|
| 1970-1972 Avanti II | All Trims | 8 Cyl 5.7L |
| 1973-1976 Avanti II | All Trims | 8 Cyl 6.6L |
| 1977-1980 Avanti II | All Trims | 8 Cyl 5.7L |
| 1981-1985 Avanti II | All Trims | 8 Cyl 5.0L |
| 1973-1975 Buick Apollo | All Trims | 6 Cyl 4.1L |
| 1973-1975 Buick Apollo | All Trims | 8 Cyl 5.7L |
| 1971-1973 Buick Centurion | All Trims | 8 Cyl 7.5L |
| 1973 Buick Centurion | All Trims | 8 Cyl 5.7L |
| 1973-1974 Buick Century | All Trims | 8 Cyl 7.5L |
| 1973-1979 Buick Century | All Trims | 8 Cyl 5.7L |