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Champion Copper Plus Small Engine Spark Plug CJ8 - Dependable Performance & Durability

(222 reviews)
Part # 843-1
30 day warranty
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Product Information

Product Details
Part No. 843-1
Warranty Details (30 Day Warranty)
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

Product Features:
  • COPPER CORE PRECISION -- Copper core center electrode allows accurate control of heat range, delivering longer life and dependable performance
  • CORROSION RESISTANCE -- Coated shell provides corrosion resistance in harsh environments
  • BUILT-IN NOISE SUPPRESSION -- Modern resistor technology protects sensitive electronics by minimizing electrical interference
  • EASY TO INSTALL -- Pre-gapped design simplifies installation
  • OE-QUALITY FIT -- Built to meet OE fit, form and function for dependable performance
  • DEPENDABLE STARTS -- Engineered for reliable ignition in all weather conditions
Specifications
Center Electrode Design:
Standard

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Non-Removable Nut

Grade Type:
Standard Replacement

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Material:
Nickel

Hex Size:
19.000 mm

Hex Type:
Hex

Indexed:
No

Manufacturer Heat Range:
8

Part Description:
Spark Plug

Pre-Gap Size:
0.030 in

Reach:
0.375 in

Resistor Type:
No

Seat Type:
Flat

Thread Diameter:
0.551 in

Washer Type:
Crush

Washer(s) Included:
Yes
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4.75 out of 5
222 Customer Reviews
98% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
190
4 Stars
21
3 Stars
5
2 Stars
0
1 Star
6
Always reliable
Pros
1
Can Withstand Use
1
Improves Performance
Cons
No Cons
Best Uses
1
Small Engines
Car/Motorcycle Describe yourself
1
Auto Enthusiast
1
Mechanic
1
Truck Enthusiast
Most Liked Positive Review
Replaces the old Champion J-8.
Replaces the obsolete J-8 plug in vintage small engines.
Most Liked Negative Review
Items good Service wasn't.
The plugs were great . I ordered online the night before I went to pick them up. It said they would be ready to pickup in 30 minutes that night, but I went in the next morning and had to wait on them to pull my online order . That added 7 minutes to my time in the store. Don't say it will be ready to pickup if your going to pull it when I get there. If I would have known that I could have went to store got my plugs and paid. then left. That what online ordered is about shop, pay and pickup .
Reviewed by 222 Customers
Replaces the old Champion J-8.
Staff Reviewer -
Replaces the obsolete J-8 plug in vintage small engines.
Bottom Line Yes, I would recommend to a friend
Nothing flashy, just plain old dependable
These things have been around forever, and that's ok. Junk doesn't stick around forever, so that tells me something.
Bottom Line Yes, I would recommend to a friend
It's a spark plug
It's a spark plug. It works as it should
Bottom Line Yes, I would recommend to a friend
yes, would by again
The part worked perfect, staff had it ready, pickup took less than 2 minutes - Thank You!
Bottom Line Yes, I would recommend to a friend
Spark Plug for a Mantis tiller
I did not have spark prior to installing the spark plug on my Mantis Tiller. As soon as I installed it, it fired right up.
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
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