Harbor Freight prices › Automotive › Diagnostic Testing Scanning
MADDOXitem 64872
Engine and Transmission Oil Pressure Test Kit
Base price$39.99
Benton Harbor, MI shelf$39.99same shelf price as online
Hasn't budged from $39.99 in 184 days. This price is load-bearing; waiting won't move it.
In-store only. You can't order this one online.
Price alert
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The numbers
- Today
- $39.99
- Usual price
- $39.99
- 90-day low
- $39.99
- Lowest tracked
- $37.99
- Otc equivalent
- $126.99
Apr 23, 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 |
|---|---|---|
| Benton Harbor, MI store 583, checked Oct 17, 2026 | $39.99 | $39.99 |
Price history
$40$45
AugJan ’23JunNovAprSepFebJulDecMay
Best price for anyoneRegular price
Every price change
| When | Price | Why |
|---|---|---|
| Apr 24, 2026 to Oct 24, 2026184 days, checked 3x | $39.99 | Regular price |
| Feb 23, 2025 to Apr 23, 2026425 days, checked 1x | $37.99 | Regular price |
| Feb 24, 2023 to Feb 22, 2025730 days, checked 1x | $39.99 | Regular price |
| Jun 5, 2022 to Feb 23, 2023264 days, checked 1x | $44.99 | Regular price |
Tracking since Oct 16, 2026. Last checked Oct 17, 2026.