Champion (71) Copper Plus Spark Plug, RC12YC
Champion (71) Copper Plus Spark Plug, RC12YC
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Champion Auto Parts

Champion (71) Copper Plus Spark Plug, RC12YC

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Key item features

  • OE Replacement: OE type replacement plug ensures compatibility and reliable performance.
  • Fouling Resistance: Designed to resist fouling, maintaining optimal engine performance.
  • Copper Core: Copper core center electrode provides accurate heat control for extended lifespan.
  • Corrosion Resistant: Superior corrosion resistance enhances durability and longevity.
  • ISO and SAE Standards: Built to meet ISO and SAE standards, ensuring proven performance.
  • Lightweight Design: Assembled product weight is only 1 oz, making it easy to handle and install.
  • Dependable Performance: Champion Spark Plugs deliver consistent and reliable performance.
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Current price is $3.94
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Arrives by Tue, Jun 23
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Customer ratings & reviews

4.8 out of 5 stars
stars207 ratings73 reviews
How item rating is calculated
  1. 5 stars87% (180)
  2. 4 stars10% (20)
  3. 3 stars1% (2)
  4. 2 stars0% (0)
  5. 1 star2% (5)

Reviews summary

Pros

  • : Correct size for intended application.
  • : Suitable for walk-behind and other lawn mowers.
  • : Offers lower prices compared to others.
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Showing 1-3 of 73 reviews

Nov 24, 2025
Cary
Top Reviewer
Item details
Size: RC12YC
5 out of 5 stars review

Verified Purchase

Very glad I was able to find...

I was looking for the Champion brand to replace an off brand on my riding mower. As the end of the cutting season came near and time to do the preventive maintenance, I was very pleased to find this spark plug at such a great price. The performance of the Briggs Stratton 17.5 hp was noticed on the first start after changing from the old plug. The old plug looked very good but didn't have the same quick start as the Champion. Very glad I was able to find this replacement at the right time.

Helpful?3C774JW2YC8647430982
Mar 12, 2026
Vincent
Item details
Size: RC12YC
5 out of 5 stars review

Verified Purchase

Fits my Craftsman T2500 mower and Craftsman slowblower. Works good. Even though a 2 pack, came in individual boxes, not lose in bags like many other 2 pack reviews state. The point on one was completely pinched shut, but I have gap tools so was able to set it correctly.

Helpful?3C774JW2YC8647430982
Aug 11, 2025
TheresaD
Item details
Size: RC12YC
5 out of 5 stars review

Verified Purchase

The Champion spark plug got my walk behind lawnmower working again after I thought it was permanently broken. I kept pulling on the cord and it wouldn't start, I added fuel and pulled on the cord and it wouldn't start, then I cleaned the filter and pulled on the cord and it wouldn't start. I figured that I'd buy a spark plug since the old one was blackened (I tried cleaning it, but it didn't work) and it was shipped in 2 days. I installed it and on the first pull it started. The next time the walk behind mower fails to start I'm buying a spark plug or several just to be prepared. I'd recommend this spark plug manufacturer.

Helpful?3C774JW2YC8647430982