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Auto Meter 4379 Ultra-Lite Wide Band Air Fuel Ratio Kit,2.3125 in.

Rated4.7(229 ratings)Only 2 left

Good price

$209.39 is 9% below the $230.32 it normally sells for, and the lowest we've seen in 142 days.

Now
$209.39
Normally
$230.32
Lowest in 142 days
$209.39(Nov 13)
Highest
$231.50
Evidence: Strong142 days tracked70 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

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.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $209.39. No account, no newsletter.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $231.50 −10%

Against its normal price

−9% vs $230.32

Typical $231.50 (−10%) holds up: today's price is 9% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 24 · 142 days · 70 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 9% below its normal price of $230.32. Auto Meter 4379 Ultra-Lite Wide Band Air Fuel Ratio Kit,2.3125 in. price history, checked Nov 13, 2026: current price $209.39, normal (typical) price $230.32, average $225.84 over 142 days, lowest $209.39 (Nov 13, 2026), highest $231.50 (Sep 11, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $230.32
  • 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 5 times, typically lasting less than a day. It's below normal right now. Brief dips under an hour (2) aren't counted.

A count of what happened, not a prediction.

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B003JZL0ES
Request
curl https://trackpin.co/api/v1/product/B003JZL0ES \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 01:29 UTC
{
  "asin": "B003JZL0ES",
  "title": "Auto Meter 4379 Ultra-Lite Wide Band Air Fuel Ratio Kit,2.3125 in.",
  "image": "https://m.media-amazon.com/images/I/81GT7pAumQL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Automotive Parts and Accessories",
  "category_label": "Automotive",
  "in_stock": true,
  "price": {
    "current_cents": 20939,
    "reference_cents": 23032,
    "discount_pct": 9.09,
    "is_deal": true,
    "observed_at": 1794611982360,
    "changed_at": 1794610164537,
    "checked_at": 1794611982360,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 9.09,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $209.39 is 9% below the $230.32 it normally sells for, and the lowest we've seen in 142 days."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 23150,
    "claimed_pct": 10,
    "real_pct": 9.09,
    "class": "holds_up",
    "observed_at": 1794611983559
  },
  "stats": {
    "min_cents": 20939,
    "max_cents": 23150,
    "avg_cents": 22584,
    "history_days": 142,
    "price_levels": 215,
    "price_changes": 70,
    "distinct_prices": 5,
    "lowest_at": 1794610164537
  },
  "history": [
    {
      "price_cents": 23032,
      "from": 1793035970865,
      "to": 1794101743180
    },
    {
      "price_cents": 21499,
      "from": 1794109813472,
      "to": 1794110723233
    },
    {
      "price_cents": 23032,
      "from": 1794111146158,
      "to": 1794592727025
    },
    {
      "price_cents": 21171,
      "from": 1794598507549,
      "to": 1794599760737
    },
    {
      "price_cents": 20939,
      "from": 1794610164537,
      "to": 1794611982360
    }
  ],
  "last_seen": 1794611983559
}
// … 210 more steps in the full response

Normal 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.