Hard to Wait

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Harbor Freight prices › Automotive › Diagnostic Testing Scanning

BLOCK-TESTERitem 56154

Combustion Leak Detector Fluid

Base price$10.49

Benton Harbor, MI shelf$10.49same shelf price as online

Hasn't budged from $10.49 in 704 days. This price is load-bearing; waiting won't move it.

See it on harborfreight.com

Steady

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The numbers

Today
$10.49
Usual price
$10.49
90-day low
$10.49
Lowest tracked
$9.99

Nov 19, 2024

Mastercool equivalent
$19.00

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$10.49$10.49

Price history

$10$10.50
AugJan ’23JunNovAprSepFebJulDecMay

Best price for anyoneRegular price

Every price change

WhenPriceWhy
Nov 20, 2024 to Oct 24, 2026704 days, checked 3x$10.49Regular price
Jun 5, 2022 to Nov 19, 2024899 days, checked 1x$9.99Regular price

See it on harborfreight.com

Tracking since Oct 16, 2026. Last checked Oct 17, 2026.

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