Harbor Freight prices › Automotive › Automotive Accessories
JUPITERitem 63428
5,000 Watt Continuous/10,000 Watt Peak Modified Sine Wave Power Inverter
Base price$349.99
Members' price$299.99$50.00 off the shelf price (14%)
Everyone else$349.99
Benton Harbor, MI shelf$329.99$20.00 under the online shelf price 3 more stores
Middletown, OH shelf$349.99same shelf price as online 3 more stores
Niles, MI shelf$349.99same shelf price as online 3 more stores
Brooklyn Hamilton, NY shelf$349.99same shelf price as online 3 more stores
$349.99 is the usual shelf price; coupons have dropped it to $329.99 seven times, last in April-May.
$299.99 is 14% under its usual $349.99, within a hair of its 90-day low.
- This deal ends Dec 3.
- Nothing in its past year points to a better price coming soon.
Why it's Wait
The record shows $329.99 coupons or sales in 2024 (May, July, October, December) and twice this spring (March to April, then late April to mid May). That's roughly every few months, and it's been about five and a half months since the last one, so another looks due. The drop is only about 6%, and sale_odds show 0%, which counts the whole record and doesn't weigh these coupon dips. Nothing is announced yet, and one store's shelf showed $329.99 on Oct 18, so a dip can show up without notice. Black Friday hasn't moved this item before in the record, so I'm leaning on the coupon rhythm only.
Next sale, maybe: Mid December, around $330.
Written by AI from this item's price record and coupons. The prices on this page are the record itself.
Prices differ by store: $20.00 apart
Harbor Freight sets some prices store by store, and its site shows the price for whichever store is picked. Here's what contributors' stores show:
- Benton Harbor, MI$329.99checked Oct 18, 2026lowest
- Middletown, OH$349.99checked Oct 30, 2026
- Niles, MI$349.99checked Oct 18, 2026
- Brooklyn Hamilton, NY$349.99checked Oct 18, 2026
- Base price, no store picked$349.99
$329.99 is the shelf price at the Benton Harbor, MI store, so that's what you'd pay walking in there. Pick it as your store on harborfreight.com to see it yourself. To see the base price yourself, open the site in a private window, with no store picked.
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Inside Track Club members
$299.9914% off
Through Dec 3, 2026, limit 1. See it on Harbor Freight's coupon site
Automatic for members: sign in online, or give your member number at the register.
Buy $299.99 is 14% under its usual $349.99, within a hair of its 90-day low.
Price alert
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The numbers
- Today
- $349.99
- Usual price
- $349.99
- 90-day low
- $297.49
- Lowest tracked
- $297.49
- Wagan Tech equivalent
- $631.90
- Today, members
- $299.99
- Usual for members
- $349.99
- 90-day low
- $297.49
- Lowest tracked
- $297.49
- Wagan Tech equivalent
- $631.90
Nov 1, 2026
Nov 1, 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 18, 2026 | $329.99$20.00 under | $349.99 |
| Brooklyn Hamilton, NY store 403, checked Oct 18, 2026 | $349.99 | $349.99 |
| Middletown, OH store 3366, checked Oct 30, 2026 | $349.99 | $349.99 |
| Niles, MI store 3516, checked Oct 18, 2026 | $349.99 | $349.99 |
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 4x | $349.99 | $299.99 | Regular price |
| Oct 30, 2026 to Nov 1, 20263 days, checked 3x | $297.4915% off | 15% off any single item (one item a day) | |
| Oct 29, 20261 day, checked 0x | $349.99 | $297.49 | Regular price |
| May 12, 2026 to Oct 28, 2026170 days, checked 3x | $349.99 | Regular price | |
| Apr 28, 2026 to May 11, 202614 days, checked 0x | $329.996% off | Coupon | |
| Apr 10, 2026 to Apr 27, 202618 days, checked 1x | $349.99 | Regular price | |
| Mar 9, 2026 to Apr 9, 202632 days, checked 1x | $329.996% off | Sale price | |
| Jan 10, 2025 to Mar 8, 2026423 days, checked 0x | $349.99 | Regular price | |
| Dec 27, 2024 to Jan 9, 202514 days, checked 0x | $329.996% off | Coupon | |
| Nov 7, 2024 to Dec 26, 202450 days, checked 0x | $349.99 | Regular price | |
| Oct 24, 2024 to Nov 6, 202414 days, checked 0x | $329.996% off | Coupon | |
| Aug 12, 2024 to Oct 23, 202473 days, checked 0x | $349.99 | Regular price | |
| Jul 29, 2024 to Aug 11, 202414 days, checked 0x | $329.996% off | Coupon | |
| Jun 3, 2024 to Jul 28, 202456 days, checked 0x | $349.99 | Regular price | |
| May 20, 2024 to Jun 2, 202414 days, checked 0x | $329.996% off | Coupon | |
| May 1, 2024 to May 19, 202419 days, checked 1x | $349.99 | Regular price | |
| Mar 25, 2024 to Apr 30, 202437 days, checked 0x | $399.99 | Regular price | |
| Feb 26, 2024 to Mar 24, 202428 days, checked 0x | $399.99 | $369.99 | Regular price |
| Jan 29, 2024 to Feb 25, 202428 days, checked 0x | $399.99 | Regular price | |
| Jan 1, 2024 to Jan 28, 202428 days, checked 0x | $399.99 | $359.99 | Regular price |
| Oct 29, 2023 to Dec 31, 202364 days, checked 0x | $399.99 | Regular price | |
| Oct 1, 2023 to Oct 28, 202328 days, checked 0x | $399.99 | $379.99 | Regular price |
| Aug 26, 2023 to Sep 30, 202336 days, checked 0x | $399.99 | Regular price | |
| Jul 29, 2023 to Aug 25, 202328 days, checked 0x | $399.99 | $379.99 | Regular price |
| May 27, 2023 to Jul 28, 202363 days, checked 0x | $399.99 | Regular price | |
| May 13, 2023 to May 26, 202314 days, checked 0x | $379.995% off | Coupon | |
| Mar 25, 2023 to May 12, 202349 days, checked 0x | $399.99 | Regular price | |
| Mar 3, 2023 to Mar 24, 202322 days, checked 1x | $399.99 | $379.99 | Regular price |
| Feb 25, 2023 to Mar 2, 20236 days, checked 0x | $419.99 | $379.99 | Regular price |
| Nov 11, 2022 to Feb 24, 2023106 days, checked 1x | $419.99 | Regular price | |
| Oct 22, 2022 to Nov 10, 202220 days, checked 0x | $429.99 | Regular price | |
| Sep 30, 2022 to Oct 21, 202222 days, checked 1x | $429.99 | $379.99 | Regular price |
| Sep 24, 2022 to Sep 29, 20226 days, checked 0x | $419.99 | $379.99 | Regular price |
| Aug 27, 2022 to Sep 23, 202228 days, checked 0x | $419.99 | Regular price | |
| Jul 30, 2022 to Aug 26, 202228 days, checked 0x | $419.99 | $379.99 | Regular price |
| Jun 25, 2022 to Jul 29, 202235 days, checked 0x | $419.99 | Regular price | |
| May 28, 2022 to Jun 24, 202228 days, checked 1x | $419.99 | $369.99 | Regular price |
Tracking since Oct 16, 2026. Last checked Nov 4, 2026.