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Deal.ai › NGK › Ignition Parts
NGK
NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc

NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc

4.5(164 ratings)

Best price now

$17.99at Advance Auto PartsChecked 21 h ago

Compared across 3 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 $17.99 at Advance Auto Parts on Nov 9.
  • Checked at 3 stores.

Our take on the NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc

The NGK ILZKR7B11 is an iridium-tipped spark plug with a laser-welded center electrode and a platinum pad on the ground electrode. It is the factory plug for many Honda and Acura engines and a common fitment on several Cadillac models. Iridium plugs last far longer than copper or platinum plugs, so the main trade-off is a higher unit cost against much longer service intervals. Owners rate it highly for smooth idle and easy starting.

Best forHonda and Acura owners replacing factory plugsCadillac and other GM engines that call for ILZKR7B11Drivers who want a long service intervalDIY tune-ups on a known fitment
Pros
  • Iridium center electrode resists wear far longer than copper plugs
  • Laser-welded tip and platinum pad hold gap and spark quality
  • Factory-specified plug for many Honda, Acura and GM engines
  • Pre-gapped and ready to install out of the box
  • Owners report smoother idle and quicker starts
Cons
  • Costs more per plug than standard nickel or platinum plugs
  • Must match the exact heat range; wrong cross-reference can misfire
  • Pack of two leaves V6 and V8 owners buying several packs
  • Counterfeit NGK plugs circulate online, so source matters

NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc prices at every store

  • Advance Auto PartsNew

    In stock

    $17.99Checked 21 h ago
    Visit Advance Auto Parts
  • WalmartNew

    In stock

    $17.68+ $6.99 shippingChecked 21 h ago
    Visit Walmart
  • Sixity AutoNew

    In stock

    $25.26Checked 21 h ago
    Visit Sixity Auto

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

NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc price history

Lowest price we've seen: $17.68 on Nov 10 at Walmart. Tracked across 3 stores since Nov 10.

What reviewers say

  • 4.5 / 5164 ratings

Buyers rate the plug 4.5 out of 5 and mostly describe smooth running, easy starts and a direct fit in Honda, Acura and Cadillac engines. Complaints center on price per plug and on plugs that arrived with damaged or incorrect gaps.

What people mention
  • FitPraisedOwners say the plug drops into Honda, Acura and Cadillac engines as the factory part with no modification.
  • Smooth runningPraisedBuyers report a steadier idle and cleaner acceleration after swapping in these plugs.
  • LongevityPraisedReviewers expect a long service interval and say the iridium tip outlasts the plugs it replaced.
  • PriceCriticisedSome buyers feel the per-plug cost is high next to standard nickel or platinum plugs.
  • Condition on arrivalCriticisedA few buyers received plugs with bent electrodes or the wrong part in the box.
  • AuthenticityMixedSome shoppers question whether the plugs they received are genuine NGK, since counterfeits exist.

Specifications

Part Type
Spark Plug
Type of Ignition Part
Spark PlugSource
Car Brand
CadillacSource
Type of Vehicle
CarSource

Questions and answers

Is this plug pre-gapped?
Yes. NGK sets the gap at the factory for the ILZKR7B11, and iridium tips should not be regapped with a coin-style tool. Check the gap with a wire gauge and leave it alone if it is in spec.
Which vehicles use the ILZKR7B11?
It is a factory plug for many Honda and Acura four-cylinders and V6s, and it fits several Cadillac engines. Confirm the part number in your owner's manual or on the old plug before ordering.
How long do these plugs last?
NGK rates iridium plugs for a long service life, often around 60,000 to 100,000 miles depending on the engine. Follow the interval in your owner's manual rather than a fixed number.
Do I need to replace the ignition coils too?
Not unless a coil has failed. Replace the plugs first; if a misfire persists on one cylinder, test that coil before buying a new one.
Why does the listing say two pieces?
The pack contains two plugs. Four-cylinder engines need two packs, and V6 or V8 engines need three or four packs, so count cylinders before ordering.
How can I tell a genuine NGK plug?
Look for crisp laser-etched NGK markings, a clean iridium tip and consistent thread quality. Buy from a seller with a solid reputation, since counterfeit NGK plugs are common.
Where is the NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc cheapest?
At Advance Auto Parts, for $17.99, as of our latest check.
What do buyers say about the NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc?
Rated 4.5 out of 5 from 164 ratings.
Where can I buy the NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc?
3 stores we checked sell it, including Walmart, Advance Auto Parts, Sixity Auto.

Stores we've priced the NGK Laser Iridium 7751 ILZKR7B11 Spark Plugs, 2 pc at

  • Walmart deals and prices

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