OE Quality
60-Day Returns

Champion 828M Spark Plug
Reliable Ignition Performance with Champion Copper Plus Spark Plug 828M
The Champion Copper Plus 828M spark plug is engineered to deliver consistent ignition performance for small engine applications. Designed with durable nickel and copper alloy materials, this spark plug supports efficient combustion and reliable starts in various outdoor power equipment and small engines.
- Ground electrode core made of nickel for durability
- Nickel center electrode tip for stable spark delivery
- Single ground electrode constructed from nickel copper alloy
- Flat seat type ensuring proper sealing and fit
- Heat range rating of 77 for optimal temperature control
- Non-removable nut electrical terminal type for secure connection
- Resistor type spark plug to reduce electrical noise interference
- Thread diameter of 14 mm (0.551 inch) with 0.5 inch reach
- Hex size of 20.65 mm (0.813 inch) for standard installation tools
- Center electrode diameter of 0.1 inch for consistent ignition
About the Champion Copper Plus Product Line
The Copper Plus line from Champion focuses on spark plugs designed specifically for small engines, combining copper core technology with durable electrode materials. This product line aims to provide reliable ignition and improved engine performance in applications such as lawn mowers, generators, and other outdoor power equipment. The 828M spark plug exemplifies this approach by balancing heat range and electrode design for steady combustion.
Technical Details and Application
The Champion Copper Plus 828M spark plug features a nickel ground electrode core and a nickel center electrode tip, both contributing to long-lasting spark integrity. Its flat seat design ensures a tight seal in compatible cylinder heads, while the resistor type helps minimize radio frequency interference. With a heat range of 77, this plug is suitable for engines requiring moderate heat dissipation. The thread diameter of 14 mm and 0.5 inch reach make it compatible with many small engine models, including popular lawn mower and generator brands.
Common Issues Addressed by Champion Copper Plus 828M
- Hard starting or inconsistent ignition in small engines
- Engine misfires caused by worn or damaged spark plugs
- Reduced fuel efficiency due to incomplete combustion
- Electrical interference affecting engine control systems
- Premature electrode wear in demanding operating conditions
Installation Notes and Tips
When installing the Champion Copper Plus 828M spark plug, ensure the engine is cool to prevent thread damage. Use a torque wrench to tighten the plug to the manufacturer’s recommended specifications, avoiding over-tightening. The flat seat design requires proper seating to maintain compression and prevent leaks. Check the gap before installation and adjust if necessary to match the engine’s requirements.
Quality Assurance and Warranty
Champion spark plugs, including the Copper Plus 828M, are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Champion products typically undergo rigorous quality control to ensure reliability in small engine applications.
| Brand | Champion |
| Part Number | 828M |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Tip Material | Nickel |
| Ground Electrode Quantity | 1 |
| Manufacturer Heat Range | 77 |
| Seat Type | Flat |
| Reach | 0.5 |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Resistor Type | Yes |
| Hex Type | Hex |
| Center Electrode Diameter (Inch) | 0.1 |
| Classification | Champion copper plus small engine |
| Ground Electrode Material | Nickel copper alloy |
| Hex Size | 0.813 |
| Hex Size | 20.650 |
| Installed Height (Inch) | 2.24 |
| Plug Type | Ql77jc4 |
| Taper Diameter (Inch) | 0.25 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.