Genuine Champion 843 CJ8 Nickel Spark Plug
Item Specifics
Single Spark Plug
Part Number: Champion 843 / CJ8
Type: Conventional spark plug with nickel alloy electrodes
This genuine Champion CJ8 nickel spark plug features a copper core electrode for increased conductivity and heat control. It is a non-projected, non-resistor plug ideal for chainsaws, chippers, snow blowers, and many other small engine machines.
Technical Specifications
| Specification | Details |
|---|---|
| Thread Diameter | 14mm |
| Thread Pitch | 1.25mm |
| Reach | 19mm (¾”) |
| Seat Type | Gasket |
| Terminal Type | Solid |
| Gap | .030″ (0.75mm) |
| Electrode Size | 2.5mm |
| Electrode Material | Nickel Alloy |
| Core | Copper |
| Resistor | No |
| Heat Range | #8 |
| Type | Standard, Non-Projected |
| Torque Specs | Cast Iron: 26-30 Ft Lbs, Aluminum: 18-22 Ft Lbs |
Product Features
- Copper Core Electrode: Provides increased conductivity and heat control with good overall wear characteristics.
- Fouling Resistant: Champion copper plus small engine plugs resist fouling for reliable performance.
- Superior Corrosion Resistance: Built to withstand harsh operating conditions in small engines.
- Proven Performance: Built by a world leader in small engine spark plugs to deliver dependable operation.
- Wide Application: Fits a lot of small equipment including chippers, chainsaws, snow blowers, and more.
We at M&M Products are a stocking distributor for Briggs and Stratton, Kohler and Toro dealer. We not only sell their OEM parts but we also use them on our equipment repairs and rebuilds. If there is something you need and don’t see it on one of our auctions, please email me through [email protected] and I can get it in and create an auction for that item.
We also ship internationally!







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