Harbor Freight prices › Automotive › Auto Shop Tools
PITTSBURGHitem 63593
90° In-Line Spark Checker
Base price$5.49
Middletown, OH shelf$5.49same shelf price as online 3 more stores
Bartlesville, OK shelf$5.49same shelf price as online 3 more stores
Southfield, MI shelf$5.49same shelf price as online 3 more stores
Benton Harbor, MI shelf$5.49same shelf price as online 3 more stores
Hasn't budged from $5.49 in 203 days. This price is load-bearing; waiting won't move it.
Price alert
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The numbers
- Today
- $5.49
- Usual price
- $5.49
- 90-day low
- $5.49
- Lowest tracked
- $4.99
- Tool Aid equivalent
- $14.23
Apr 9, 2026
Prices by store
Harbor Freight prices some items differently by store, and once you pick a store its site shows that store's shelf price. These come from contributors who share their store; the main price above is the base price, the one HF shows before you pick a store.
| Store | Today | Usually |
|---|---|---|
| Bartlesville, OK store 3021, checked Oct 23, 2026 | $5.49 | $5.49 |
| Benton Harbor, MI store 583, checked Oct 20, 2026 | $5.49 | $5.49 |
| Middletown, OH store 3366, checked Oct 30, 2026 | $5.49 | $5.49 |
| Southfield, MI store 3452, checked Oct 20, 2026 | $5.49 | $5.49 |
Price history
Best price for anyoneRegular price
Every price change
| When | Price | Why |
|---|---|---|
| Apr 10, 2026 to Oct 29, 2026203 days, checked 4x | $5.49 | Regular price |
| Jun 20, 2025 to Apr 9, 2026294 days, checked 1x | $4.99 | Regular price |
| Feb 23, 2025 to Jun 19, 2025117 days, checked 1x | $5.29 | Regular price |
| Jun 5, 2022 to Feb 22, 2025994 days, checked 1x | $4.99 | Regular price |
Tracking since Oct 16, 2026. Last checked Oct 22, 2026.