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Champion Copper Plus Spark Plug RC12YC - Dependable Performance & Durability

(62 reviews)
Part # 71-1
30 day replacement if defective
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Product Information

Product Details
Part No. 71-1
Warranty Details (30 DAY REPLACEMENT IF DEFECTIVE)
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 Diameter (Inch):
0.1 in

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Non-Removable Nut

Grade Type:
Standard Replacement

Ground Electrode Core Material:
Nickel

Ground Electrode Material:
Nickel Copper Alloy

Ground Electrode Quantity:
1

Ground Electrode Tip Material:
Nickel

Hex Size:
0.625 in

Hex Type:
Hex

Indexed:
No

Installed Height (Inch):
1.99 in

Insulator Height:
0.06 in

Manufacturer Heat Range:
12

Part Description:
Spark Plug

Pre-Gap Size:
0.89 mm

Reach:
0.75 in

Resistor Type:
Yes

Seat Type:
Flat

Thread Diameter:
14.000 mm

Washer Type:
Crush

Washer(s) Included:
Yes
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4.74 out of 5
62 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
53
4 Stars
4
3 Stars
4
2 Stars
0
1 Star
1
Pros
1
Can Withstand Use
1
Improves Performance
Cons
60
No
1
Yes
Most Liked Positive Review
Replaces the old Champion J-8.
Replaces the obsolete J-8 plug in vintage small engines.
Most Liked Negative Review
Never would I buy this part again.
Received the wrong part after opening did not attempt to return.
Reviewed by 62 Customers
Never would I buy this part again.
Verified Buyer -
Received the wrong part after opening did not attempt to return.
Replaces the old Champion J-8.
Verified Buyer -
Replaces the obsolete J-8 plug in vintage small engines.
Bottom Line Yes, I would recommend to a friend
Too much $$
Verified Buyer -
For a plug that is really common like this one it Should be cheaper !
Too much $$
Verified Buyer -
For a plug that is really common like this one it Should be cheaper !
Meets OEM requirements
Verified Buyer -
Meets OEM requirements. Its a plug.
Displaying Reviews 1 - 5Back to Top
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