Harbor Freight prices › Air Tools & Compressors › Air Compressor Accessories
MERLINitem 63545
3/8 in. Automotive Quick Coupler and Plug Set, 4-Piece
Base price$11.99
Members' price$11.99
Everyone else$11.99
Benton Harbor, MI shelf$11.99same shelf price as online
$11.99 is up 20% from its usual $9.99, and coupons have taken it to $6.99 twice before.
$11.99 is 20% over its usual $9.99, up since Nov 2. Nothing in its record says when, or if, it comes back down.
- It went 30% off (around $8.50) in early January two years ago. One sale is a hint, not a pattern.
Why it's Wait
The price rose on Oct 17 from $9.99 to $11.99. The record shows two coupon dips, in Sept 2024 and Jan 2025, both down to $6.99 (30% off). That's a long stretch since the last one (about 647 days), and nothing is announced now, but on a cheap item a coupon can start within days. It sat at $9.99 for over a year, so even a slide back there would beat today.
Next sale, maybe: No telling when, around $10.
Written by AI from this item's price record and coupons. The prices on this page are the record itself.
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The numbers
- Today
- $11.99
- Usual price
- $9.99
- 90-day low
- $9.99
- Lowest tracked
- $6.99
- Campbell Hausfeld equivalent
- $15.59
- Today, members
- $11.99
- Usual for members
- $9.99
- 90-day low
- $9.99
- Lowest tracked
- $6.99
- Campbell Hausfeld equivalent
- $15.59
Jan 23, 2025
Jan 23, 2025
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 | $11.99 | $11.99 |
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 0x | $11.99 | Regular price | |
| Oct 30, 2026 to Nov 1, 20263 days, checked 2x | $10.1915% off | 15% off any single item (one item a day) | |
| Oct 29, 20261 day, checked 0x | $11.99 | $10.19 | Regular price |
| Oct 17, 2026 to Oct 28, 202612 days, checked 2x | $11.99 | Regular price | |
| Jan 24, 2025 to Oct 16, 2026631 days, checked 0x | $9.99 | Regular price | |
| Jan 10, 2025 to Jan 23, 202514 days, checked 0x | $6.9930% off | Coupon | |
| Sep 26, 2024 to Jan 9, 2025106 days, checked 0x | $9.99 | Regular price | |
| Sep 12, 2024 to Sep 25, 202414 days, checked 0x | $6.9930% off | Coupon | |
| Sep 8, 2024 to Sep 11, 20244 days, checked 0x | $7.0030% off | Coupon | |
| Aug 31, 2024 to Sep 7, 20248 days, checked 1x | $9.99 | Regular price | |
| Jun 5, 2022 to Aug 30, 2024818 days, checked 1x | $8.99 | Regular price |
Tracking since Oct 17, 2026. Last checked Nov 1, 2026.