Price History for Spark Plug
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Spark Plug
Bosch Double Platinum Spark Plugs are engineered to deliver both performance and long life, representing the best of OE spark plug technology. Bosch utilizes a platinum firing pin on the center electrode and pl
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Price History Chart
Recorded price history
Showing the 30 most recent of 70 recorded prices.
| Date | Price |
|---|---|
| Sep 9, 2026 | $9.21 |
| Sep 8, 2026 | $9.49 |
| Sep 6, 2026 | $8.78 |
| Sep 5, 2026 | $9.49 |
| Sep 2, 2026 | $8.99 |
| Sep 1, 2026 | $9.89 |
| Aug 22, 2026 | $8.99 |
| Aug 21, 2026 | $12.85 |
| Aug 20, 2026 | $11.46 |
| Aug 19, 2026 | $11.91 |
| Jul 31, 2026 | $8.49 |
| Jul 30, 2026 | $9.34 |
| Jul 29, 2026 | $8.49 |
| Jul 27, 2026 | $9.34 |
| Jul 23, 2026 | $8.49 |
| Jul 22, 2026 | $9.34 |
| Jul 20, 2026 | $8.49 |
| Jul 19, 2026 | $16.98 |
| Jul 18, 2026 | $11.34 |
| Jul 14, 2026 | $12.99 |
| Jul 13, 2026 | $12.85 |
| Jul 12, 2026 | $8.79 |
| Jul 10, 2026 | $7.99 |
| Jul 5, 2026 | $8.79 |
| Jul 3, 2026 | $7.99 |
| Jul 2, 2026 | $8.79 |
| Jun 30, 2026 | $7.99 |
| Jun 29, 2026 | $8.79 |
| Jun 27, 2026 | $7.99 |
| Jun 26, 2026 | $8.79 |
Analysis
Spark Plug price analysis
Price analysis for Spark Plug at Home Depot: Today's price is $9.21. Current price is 5% below the 90-day average of $9.68 (a $0.47 below the running mean).
- Currently listed at $9.21, which is $1.22 above the original MSRP of $7.99.
- Current price is 5% below the 90-day average of $9.68 (a $0.47 below the running mean).
- The lowest recorded price on PriceWatchPro was $7.99 on November 2, 2025. That's $1.22 below today's price.
- The highest recorded price on PriceWatchPro was $16.98 on July 19, 2026. Today's price is $7.77 below that peak.
- 30-day trend: trending up 2.5% from $8.99 to $9.21.
- Across 69 tracked price changes, the listing has dropped 29 times with an average drop of $1.34.
- PriceWatchPro has been tracking this listing since November 2, 2025 (322 days of price history).
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Snapshot
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