
Samlex 400A Inverter Installation Kit f/3500W Inverter
Normal price
$503.94 is what it normally sells for.
- Now
- $503.94
- Normally
- $503.94
- Lowest in 142 days
- $443.51(Oct 27)
- Highest
- $582.89
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
Price history
Tracked since Jun 22 · 142 days · 81 price changes
Ahead of Black Friday 2026 (Nov 27), it is at its normal price of $503.94. A price below $503.94 would be a real deal. Samlex 400A Inverter Installation Kit f/3500W Inverter price history, checked Nov 11, 2026: current price $503.94, normal (typical) price $503.94, average $526.24 over 142 days, lowest $443.51 (Oct 27, 2026), highest $582.89 (Oct 13, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $503.94
- 5% or more below normal
How often does it drop below normal?
In the 142 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more once, lasting about 2 days. The last time ended Oct 29.
A count of what happened, not a prediction.
Other ways to buy
New from
$503.94
gstreetwholesaleSeller rating 56% of 63
10 of 35 offers
| Seller | Condition | Price | FBA | Seller rating |
|---|---|---|---|---|
| gstreetwholesale | New | $503.94 | No | 56% of 63 |
| gstreetwholesale | New | $537.59 | No | 56% of 63 |
| Amazon.com | New | $544.24 | Yes | 100% |
| The Factory Depot | New | $568.71 | No | 48% of 133,881 |
| Purely Power Sports | New | $571.15 | No | 66% of 11,519 |
| OmniHop | New | $584.52 | No | 79% of 3,760 |
| WunderCarParts | New | $606.17 | No | 67% of 12,907 |
| HNR Global Auto Parts | New | $631.65 | No | 63% of 826 |
| Performance Guarantee✅ | New | $636.00 | No | 86% of 6,149 |
| BeachAudio | New | $636.20 | No | 67% of 181,359 |
Amazon lists 35 offers. These are from the first page of its offer list, sorted by price plus delivery, so a lower price may be further down.
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Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B0073TV9P6 \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B0073TV9P6", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B0073TV9P6",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B0073TV9P6",
"title": "Samlex 400A Inverter Installation Kit f/3500W Inverter",
"image": "https://m.media-amazon.com/images/I/71V12sMBlaL._AC_SL500_.jpg",
"currency": "USD",
"category": "Sports",
"category_label": "Sports",
"in_stock": true,
"price": {
"current_cents": 50394,
"reference_cents": 50394,
"discount_pct": 0,
"is_deal": false,
"observed_at": 1794429986127,
"changed_at": 1793718977211,
"checked_at": 1794429986127,
"source": "stored"
},
"verdict": {
"label": "normal",
"text": "Normal price",
"pct_vs_normal": 0,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Normal price. $503.94 is what it normally sells for."
},
"listing_claim": null,
"stats": {
"min_cents": 44351,
"max_cents": 58289,
"avg_cents": 52624,
"history_days": 142,
"price_levels": 267,
"price_changes": 81,
"distinct_prices": 14,
"lowest_at": 1793144367440
},
"history": [
{
"price_cents": 54323,
"from": 1792732128081,
"to": 1792903559490
},
{
"price_cents": 48891,
"from": 1792905220235,
"to": 1793137184528
},
{
"price_cents": 44351,
"from": 1793144367440,
"to": 1793284318495
},
{
"price_cents": 56871,
"from": 1793297057078,
"to": 1793713664259
},
{
"price_cents": 50394,
"from": 1793718977211,
"to": 1794429986127
}
],
"last_seen": 1794429986127
}
// … 262 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.