Hard to Wait

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Harbor Freight prices › Automotive › Diagnostic Testing Scanning

MADDOXitem 64758

Radiator Pressure Test Kit

Base price$129.99

Benton Harbor, MI shelf$134.99$5.00 over the online shelf price

Members $129.99

$129.99 is this kit's normal shelf price; the $99.99 coupon dips come about once a year, in late spring.

See it on harborfreight.com

Fair

Why it's Fair

The record shows four dips to $99.99 or $109.99 (about 23% off), and the last three were coupons in June 2025 and May 2026, plus one in May and June 2023. Each ran about two weeks, and none landed in the fall or around Black Friday. The last one ended in late May, and nothing is announced now. Sale odds for a better price in the next six weeks are only 14%, so I see no strong reason to wait or to rush. One store's shelf is at $134.99, a bit above today's online price.

Next sale, maybe: Mid May, around $100. Possible.

Written by AI from this item's price record and coupons. The prices on this page are the record itself.

Price alert

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The numbers

Today
$129.99
Usual price
$129.99
90-day low
$129.99
Lowest tracked
$99.99

May 26, 2026

Cta equivalent
$346.99

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.

StoreTodayUsually
Benton Harbor, MI store 583, checked Oct 17, 2026$134.99$5.00 over$129.99

Price history

$100$120
AugJan ’23JunNovAprSepFebJulDecMay

Best price for anyoneInside Track Club priceRegular price

Every price change

WhenPriceMembersWhy
May 27, 2026 to Oct 24, 2026151 days, checked 1x$129.99Regular price
May 13, 2026 to May 26, 202614 days, checked 0x$99.9923% offCoupon
Oct 3, 2025 to May 12, 2026222 days, checked 0x$129.99Regular price
Sep 5, 2025 to Oct 2, 202528 days, checked 0x$129.99$89.99Regular price
Jun 16, 2025 to Sep 4, 202581 days, checked 0x$129.99Regular price
Jun 2, 2025 to Jun 15, 202514 days, checked 0x$99.9923% offCoupon
Sep 30, 2023 to Jun 1, 2025611 days, checked 1x$129.99Regular price
Jun 2, 2023 to Sep 29, 2023120 days, checked 1x$134.99Regular price

See it on harborfreight.com

Tracking since Oct 17, 2026. Last checked Oct 17, 2026.

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