




⚡ Ignite your drive with Champion’s copper spark—because every spark counts!
The Champion 828M Pack of 4 Copper Marine Spark Plugs (QL77JC4) features a copper core electrode for enhanced conductivity and heat control, ensuring reliable ignition and extended wear. With a 14mm thread size and 12.7mm reach, these OEM replacement plugs fit a variety of vehicles, delivering consistent performance and durability in a convenient 4-pack.
| Brand | Champion |
| Core Material | Copper |
| Thread Size | 14mm x 1.25 |
| Top Material Type | Metal |
| Vehicle Service Type | Car, Truck |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 037551121984 |
| Manufacturer | Champion |
| Model | 4 pack Champion Copper Plus 828M Spark Plug |
| Item Weight | 8 ounces |
| Product Dimensions | 1 x 4 x 4 inches |
| Item model number | C33828M |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 828M QL77JC4 |
| Position | Front, Rear |
S**D
Spark plugs
Great product, fast shipping
A**R
Good plugs
Working great will buy again good price
A**N
great product, fast service
great product, fast service
J**S
Champion spark plugs.
Arrived on time and exactly what I ordered.
P**H
As advertised..
As advertised..
P**R
Great product
I liked that I saw YouTube videos replacing OEM spark plugs with this particular model number plug. I could not find a good cross reference and I am hopeful that these will work well on my 1975 Evinrude 9.9HP outboard. They were a good value.
C**Y
Hang On
On first test drive of new old bass boat, brother asked why this boat wouldn't go faster. Fresh gas and new plugs to replace the old outboard motor plugs. Had to make minor adjustment to gap spacing to bring to specification for my motor. Second test drive, I was afraid of full speed.
J**N
They work like they should
Good spark plug for a good price and they work like they should.
Trustpilot
3 weeks ago
2 months ago