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Deal.ai › Champion Auto Parts › Ignition Parts
Champion Auto Parts
Champion Auto Parts Spark Plug Iridium

Champion Auto Parts Spark Plug Iridium

4.9(16 ratings)

Best price now

$11.49at NAPAChecked 1 h ago

Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Last seen at $11.49 at NAPA on Nov 9.
  • Checked at 5 stores.

Our take on the Champion Auto Parts Spark Plug Iridium

The Champion Iridium is a fine-wire iridium spark plug with a platinum-tipped ground electrode, built for sharper spark focus and longer service life than standard copper or nickel plugs. Its heat range 10, 0.75 in reach and 0.051 in pre-gap suit many modern gasoline engines, but fitment depends on the specific engine, so check the application before buying. Against rival iridium plugs from NGK and Denso, it is a solid alternative rather than a clear winner. Owners of this plug line generally report smooth idle and reliable starts.

Best forDrivers replacing worn plugs on a compatible engineOwners wanting a longer-life plug over standard nickelTuned or high-mileage cars needing a strong sparkDIY plug changes with basic tools
Pros
  • Fine-wire iridium center electrode focuses the spark
  • Platinum-tipped ground electrode resists wear
  • Pre-gapped at 0.051 in out of the box
  • Longer service interval than standard plugs
  • 0.625 in hex fits common plug sockets
Cons
  • Fitment is engine-specific; heat range 10 is not universal
  • Iridium plugs cost more than standard nickel plugs
  • Non-removable terminal nut limits some wire setups
  • Gap should still be checked before install

Champion Auto Parts Spark Plug Iridium prices at every store

  • NAPANew

    In stock

    $11.49Checked 1 h ago
    Visit NAPA
  • Advance Auto PartsNew

    In stock

    $13.99Checked 1 h ago
    Visit Advance Auto Parts
  • WalmartNew

    In stockSold by Chasinparts Customer SerivceReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $12.98+ $5.99 shippingChecked 1 h ago
    Visit Walmart
  • TWISTNew

    In stock

    $13.12+ $12.50 shippingChecked 1 h ago
    Visit TWIST
  • The Twister GroupNew

    In stock

    $13.12+ $12.50 shippingChecked 1 h ago
    Visit The Twister Group

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission. Some prices via Klarna.

Champion Auto Parts Spark Plug Iridium price history

Lowest price we've seen: $11.49 on Nov 10 at NAPA. Tracked across 5 stores since Nov 10.

What reviewers say

  • 4.9 / 516 ratings

Ratings are very high, and buyers describe smooth running and easy installation.

What people mention
  • PerformancePraisedBuyers report smooth idle and reliable starts after fitting.
  • InstallationPraisedThe 0.625 in hex and pre-gap make fitting straightforward.
  • ValueMixedSome say the iridium plug is worth it, others find the premium hard to justify over standard plugs.
  • FitmentMixedHeat range and reach must match the engine, and some buyers were unsure before ordering.

About the Champion Auto Parts Spark Plug Iridium

Champion Iridium - the ultimate element. This spark plug's fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

Specifications

Type of Ignition Part
Spark PlugSource
Type of Vehicle
CarSource
Center Electrode Design
Fine WireSource
Center Electrode Tip Material
IridiumSource

Questions and answers

Is this plug pre-gapped?
Yes, it comes pre-gapped at 0.051 in. Check it against your engine spec before installing, since handling can shift the gap.
How often should I replace it?
Iridium plugs typically last far longer than standard nickel plugs. Follow your owner's manual interval; many cars go tens of thousands of miles between changes.
Will it fit my car?
Only if your engine calls for a 0.75 in reach, 0.625 in hex and a comparable heat range. Cross-check the Champion part number against your vehicle.
How does it compare with NGK or Denso iridium plugs?
All three use fine iridium electrodes and offer long life. Champion's platinum-tipped ground is its differentiator; pick the one listed for your engine.
Can I gap it myself?
Yes, but use a wire-style gauge and avoid levering against the fine iridium tip, which can chip.
Where is the Champion Auto Parts Spark Plug Iridium cheapest?
At NAPA, for $11.49, as of our latest check.
What do buyers say about the Champion Auto Parts Spark Plug Iridium?
Rated 4.9 out of 5 from 16 ratings.
Where can I buy the Champion Auto Parts Spark Plug Iridium?
5 stores we checked sell it, including Walmart, NAPA, TWIST, The Twister Group, Advance Auto Parts.

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Buying guides that pick the Champion Auto Parts Spark Plug Iridium

  • Best spark plugs

Stores we've priced the Champion Auto Parts Spark Plug Iridium at

  • Walmart deals and prices
Electrical Terminal Type
Non-Removable NutSource
Ground Electrode Core Material
PlatinumSource
Ground Electrode Quantity
1Source
Ground Electrode Tip Design
J GapSource
Ground Electrode Tip Material
Iridium-PlatinumSource
Hex Size
0.625 inSource
Insulator Height
0.06 inSource
Manufacturer Heat Range
10Source
Pre-Gap Size
0.051 inSource
Reach
0.75 inSource