Price History for Conventional Spark Plug
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Conventional Spark Plug
Regardless of the vehicle or the application, you can bet that there is an ACDelco Spark Plug to do the job and do it well. Whether you are choosing Professional or Specialty spark plugs, from our Iridium, Doub
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Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Sep 6, 2026 | $6.28 |
| Sep 2, 2026 | $6.68 |
| Aug 18, 2026 | $6.28 |
| Aug 9, 2026 | $5.95 |
| Aug 1, 2026 | $6.32 |
| Jul 18, 2026 | $5.95 |
| Jul 11, 2026 | $5.64 |
| Jan 2, 2026 | $5.34 |
| Jan 1, 2026 | $5.69 |
| Dec 26, 2025 | $5.36 |
| Dec 14, 2025 | $5.69 |
| Dec 4, 2025 | $5.69 |
| Nov 30, 2025 | $5.69 |
| Nov 4, 2025 | $5.69 |
Analysis
Conventional Spark Plug price analysis
Price analysis for Conventional Spark Plug at Home Depot: Today's price is $6.28. Current price is 2% above the 90-day average of $6.16 (a $0.12 above the running mean).
- Currently listed at $6.28, which is $0.59 above the original MSRP of $5.69.
- Current price is 2% above the 90-day average of $6.16 (a $0.12 above the running mean).
- The lowest recorded price on PriceWatchPro was $5.34 on January 2, 2026. That's $0.94 below today's price.
- The highest recorded price on PriceWatchPro was $6.68 on September 2, 2026. Today's price is $0.40 below that peak.
- 30-day trend: trending down 6.0% from $6.68 to $6.28.
- No meaningful price drops recorded in the tracked history — this listing has held steady or trended upward.
- PriceWatchPro has been tracking this listing since November 4, 2025 (320 days of price history).
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