---
title: Harbor Freight vs. MASTERCOOL — 4 Equivalent Tools & Model Cross-Reference | Price Caliper
description: Compare 4 Harbor Freight tools directly against MASTERCOOL models (BLOCK-TESTER, MADDOX, PITTSBURGH) with ~60% average savings, active Super Coupons, Inside Track Club prices, and daily price history.
image: "https://pricecaliper.com/static/og-card.png"
---

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Model Cross-Reference

# Harbor Freight vs. MASTERCOOL

Harbor Freight offers **4** active tools compared directly against **MASTERCOOL** models (under the **BLOCK-TESTER, MADDOX, PITTSBURGH** lines), saving an average of **60%** (and up to $396.00 ) off MASTERCOOL list prices. Today, **0** of these equivalents are on public sale (0 Super Coupons, 0 Instant Savings) and **0** have an Inside Track Club member deal.

4 Equivalent Tools

~60% Avg Savings

1. Harbor Freight Deal Status

[All Equivalents](/compare/mastercool)
[On Sale Today](/compare/mastercool?type=all#compare-view)
[Super Coupons](/compare/mastercool?type=coupon#compare-view)
[Instant Savings](/compare/mastercool?type=instant#compare-view)
[ITC Deals](/compare/mastercool?type=itc#compare-view)
[At All-Time Low](/compare/mastercool?type=atl#compare-view)

2. Sort Order

[Biggest $ Saved](/compare/mastercool)
[Biggest % Saved](/compare/mastercool?sort=vs_competitor_pct#compare-view)
[Most Popular](/compare/mastercool?sort=popular#compare-view)
[Lowest HF Price](/compare/mastercool?sort=lowest_price#compare-view)
[Biggest HF Sale](/compare/mastercool?sort=pct_drop#compare-view)

Showing 1–4 of 4 MASTERCOOL equivalents

| Harbor Freight Tool | Compares To | HF Current Price | ITC Member | Saved vs. List | Price History |
| --- | --- | --- | --- | --- | --- |
| MADDOX

#58737

· Automotive

4.6 (42)

[Universal Hydraulic Brake Flaring Tool Kit](/item/58737) | $745.99

Model NTE783893 | $349.99 | — | −$396.00 (−53%) | [View History →](/item/58737) |
| MADDOX

#64985

· Automotive

4.5 (468)

[Cooling System Test and Refill Kit](/item/64985) | $331.99

Model NTE783761 | $84.99 | — | −$247.00 (−74%) | [View History →](/item/64985) |
| PITTSBURGH

#58638

· Automotive

4.0 (476)

[R134a Self-Sealing A/C Refrigerant Can Tap Valve](/item/58638) | $27.96

Model 85512 | $8.99 | — | −$18.97 (−68%) | [View History →](/item/58638) |
| BLOCK-TESTER

#56154

· Automotive

4.8 (151)

[Combustion Leak Detector Fluid](/item/56154) | $19.00

Model ML43709 | $10.49 | — | −$8.51 (−45%) | [View History →](/item/56154) |

## Harbor Freight vs. MASTERCOOL Q&A

### What Harbor Freight tools are equivalent to MASTERCOOL and how much cheaper are they?

Price Caliper tracks 4 active Harbor Freight tools that directly compare to MASTERCOOL models, saving an average of 60% off MASTERCOOL list prices. Top comparisons include: MADDOX Universal Hydraulic Brake Flaring Tool Kit (#58737 at $349.99 vs. MASTERCOOL NTE783893 at $745.99, saving $396.00); MADDOX Cooling System Test and Refill Kit (#64985 at $84.99 vs. MASTERCOOL NTE783761 at $331.99, saving $247.00); PITTSBURGH R134a Self-Sealing A/C Refrigerant Can Tap Valve (#58638 at $8.99 vs. MASTERCOOL 85512 at $27.96, saving $18.97); BLOCK-TESTER Combustion Leak Detector Fluid (#56154 at $10.49 vs. MASTERCOOL ML43709 at $19.00, saving $8.51).

### Which Harbor Freight house brands compare to MASTERCOOL?

Harbor Freight's MASTERCOOL equivalents are sold under the BLOCK-TESTER, MADDOX, PITTSBURGH brand lines. Each item page on Price Caliper lists the exact MASTERCOOL model number, competitor price, and Harbor Freight daily price history.

### Are any Harbor Freight MASTERCOOL equivalents on sale or Super Coupon today?

Today, 0 Harbor Freight MASTERCOOL equivalents are on public sale (0 Super Coupons and 0 Instant Savings markdowns) plus 0 Inside Track Club (ITC) member deals. You can also set a free email price drop alert on any item page to be notified when a new coupon drops.

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