The Briggs & Stratton 5066 is a Long Life Platinum spark plug with platinum center electrode and Gold shell with TinTac coating. Smaller diameter electrode increases ignitability and idle stability.
The Briggs & Stratton 5066 spark plug has corrugated ribs, gasket seal type, a platinum center electrode, a 16.0 mm (5/8 inches) hex size, and 0.75 mm (0.030 inches) spark plug gap. Projected core nose broadens heat range and protects against fouling, single platinum pad on center electrode increases plug life and the SAC9 resistor element reduces electrical noise interference.
General informational
| Specifications | |
| Spark plug model | Briggs & Stratton 5066 |
| Thread size | 14.0 mm (0.55 in) |
| Thread pitch | 1.25 mm (0.050 in) |
| Reach | 19.0 mm (0.75 in) |
| HEX size | 16.0 mm (0.629 in) |
| Seat type | Gasket |
| Terminal type | Solid |
| Resistor | Yes |
| Resistor type | SAC9 |
| Heat range | 12 |
| Torque specs | Cast Iron: 35-40 Nm (3.6-4.0 kg·m; 25.8-29.5 ft·lb) Aluminum: 25-29 Nm (2.5-3.0 kg·m; 18.4-21.6 ft·lb) |
| Gap | 0.75 mm (0.030 in) |
| Longevity | 64,000 km (40,000 miles) |
| Center electrode | |
| Material | Platinum |
| Type | Standard |
| Projection | Projected |
| Ground electrode | |
| Material | Gold (TinTac coating) |
| Type | Standard |
| Quantity | 1 |
| Tip design | J Gap |
Equivalents and alternatives
| Briggs & Stratton 5066 cross reference to | |
| Champion | |
| 3071, 3071T04, RC12PYC | |
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