High-performance iridium alloy spark plug engineered for exceptional durability and enhanced ignitability. Features an ultra-fine 0.6mm wire center electrode that ensures a stable, concentrated spark, quicker engine starts, improved throttle response, and superior anti-fouling characteristics. Built with trivalent metal plating for advanced anti-corrosion and anti-seizing performance and includes a built-in resistor.
Specs & Details
- Stock Number: 6637
- Part Number: BPR6EIX
- Thread Size: M14 - 1.25
- Reach: 19.0 mm (0.750 in)
- Seat Style: Gasket (Flat)
- Heat Range: 6
- Resistor Type: Resistor (5,000 Ohms)
- Electrode Material: Iridium fine-wire center electrode
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Yamaha | TY 350 | Two-Stroke Trials | 1985–1986 |
| Yamaha | DT 250 / DT 400 | Two-Stroke Enduro | 1977–1981 |
| Yamaha | IT 250 / IT 400 / IT 425 / IT 465 | Two-Stroke Enduro | 1977–1982 |
| Yamaha | YZ 250 / YZ 400 / YZ 465 | Two-Stroke Motocross | 1977–1981 |
| Suzuki | PE 175 / PE 250 / PE 400 | Two-Stroke Enduro | 1978–1984 |
| Suzuki | RM 250 / RM 400 / RM 465 | Two-Stroke Motocross | 1978–1981 |
TSO Garage Note: Identical heat range and physical dimensions to stock #1233, but packaged under stock #6637 featuring a removable terminal nut setup. Provides superior fine-wire spark stability and fouling resistance for vintage two-stroke dirt bikes and enduro machines.
Compatibility
Fetching compatibility details...
| Year | Make | Model |
|---|---|---|
