Harbor Freight prices › Automotive › Diagnostic Testing Scanning
MADDOXitem 58760
Fuel Injection Pump Tester
Base price$29.99
Members' price$19.99$10.00 off the shelf price (33%)
Everyone else$29.99
Middletown, OH shelf$29.99same shelf price as online 1 more store
Benton Harbor, MI shelf$29.99same shelf price as online 1 more store
$29.99 is about its normal price.
- It went 22% off (around $25) in early November three years ago. One sale is a hint, not a pattern.
$19.99 is 33% under its usual $29.99 and the lowest it's been.
- This deal ends Dec 3.
- Nothing in its past year points to a better price coming soon.
In-store only. You can't order this one online.
-
Inside Track Club members
$19.9933% off
Through Dec 3, 2026, limit 3. See it on Harbor Freight's coupon site
Automatic for members: sign in online, or give your member number at the register.
Buy $19.99 is 33% under its usual $29.99 and the lowest it's been.
Price alert
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The numbers
- Today
- $29.99
- Usual price
- $29.99
- 90-day low
- $25.49
- Lowest tracked
- $21.99
- Otc equivalent
- $72.78
- Today, members
- $19.99
- Usual for members
- $29.99
- 90-day low
- $19.99
- Lowest tracked
- $19.99
- Otc equivalent
- $72.78
Mar 20, 2023
Nov 5, 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 | $29.99 | $29.99 |
| Middletown, OH store 3366, checked Oct 30, 2026 | $29.99 | $29.99 |
Price history
Best price for anyoneInside Track Club priceRegular price
Every price change
| When | Price | Members | Why |
|---|---|---|---|
| Nov 2, 2026 to Nov 5, 20264 days, checked 3x | $29.99 | $19.99 | Regular price |
| Oct 30, 2026 to Nov 1, 20263 days, checked 3x | $25.4915% off | $19.99 | 15% off any single item (one item a day) |
| Oct 29, 20261 day, checked 0x | $29.99 | $25.49 | Regular price |
| Mar 1, 2025 to Oct 28, 2026607 days, checked 3x | $29.99 | Regular price | |
| Dec 2, 2024 to Feb 28, 202589 days, checked 0x | $34.99 | Regular price | |
| Nov 4, 2024 to Dec 1, 202428 days, checked 0x | $34.99 | $19.99 | Regular price |
| Nov 2, 2024 to Nov 3, 20242 days, checked 1x | $34.99 | Regular price | |
| Oct 5, 2024 to Nov 1, 202428 days, checked 1x | $29.996% off | Sale price | |
| Mar 21, 2024 to Oct 4, 2024198 days, checked 0x | $31.99 | Regular price | |
| Mar 7, 2024 to Mar 20, 202414 days, checked 0x | $24.9922% off | Coupon | |
| Nov 18, 2023 to Mar 6, 2024110 days, checked 0x | $31.99 | Regular price | |
| Nov 4, 2023 to Nov 17, 202314 days, checked 0x | $24.9922% off | Coupon | |
| Jul 31, 2023 to Nov 3, 202396 days, checked 1x | $31.99 | Regular price | |
| Jul 24, 2023 to Jul 30, 20237 days, checked 1x | $24.9922% off | Sale price | |
| Jul 11, 2023 to Jul 23, 202313 days, checked 0x | $24.9922% off | Coupon | |
| Mar 21, 2023 to Jul 10, 2023112 days, checked 0x | $31.99 | Regular price | |
| Mar 7, 2023 to Mar 20, 202314 days, checked 0x | $21.9931% off | Coupon | |
| Nov 18, 2022 to Mar 6, 2023109 days, checked 1x | $31.99 | Regular price | |
| Jun 21, 2022 to Nov 17, 2022150 days, checked 1x | $29.99 | Regular price |
Tracking since Oct 16, 2026. Last checked Nov 4, 2026.