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NGK

NGK 4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack)

Based on 3,015 reviews
Condition: New
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$46.36
Holiday Deal · 24% off was $60.63

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Nov 13
Order within 10 hours and 38 minutes

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At a glance

Condition
New
Weight
0.27 g
Core Material
Iridium
Thread Size
14mm-1.25mm
Top Material Type
Nickel
Vehicle Service Type
Car, Truck
Automotive Fit Type
Vehicle Specific Fit
In the box
4469

Features 4

  • Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles.
  • Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque.
  • Designed for fuel-injected and turbo engines.
  • Precision laser electrode construction.

Description

Part Number: LFR5AIX-11 Stock Number: 4469 Material Grade: Iridium Resistance (Ohms): 5000.0 Ground Electrode Tip Design: Taper Cut Ground Configuration: J-Gap Ground Electrode Core Material: Nickel Washer Included: Yes Grade Type: Performance Electrical Terminal Type: Non-Removable Nut Center Electrode Core Material: Copper Center Electrode Tip Material: Iridium Pre-Gap Size (IN): .044 Pre-Gap Size (MM): 1.1 Ground Electrode Quantity: 1 Hex Size: 5/8" (16mm) Insulator Height (IN): 1.99 Insulator Height (MM): 50.5 Manufacturer Heat Range: 5 Seat Type: Flat Reach (IN): 1.043 Reach (MM): 26.5 Thread Diameter (IN): 0.551 Thread Diameter (MM): 14.0 Insulator Material: Ceramic Resistor Type: Yes Ground Electrode Tip Material: Nickel Skirt: No Center Electrode Insulator Tip Projection (IN): 0.14 Center Electrode Insulator Tip Projection (MM): 3.5 Center Electrode Design: Fine Wire Washer Type: Crush Center Electrode Projection: Mid Projection Compatible with Hyundai Genesis 2009 3.8L 6cyl Build Date Before 5/1/2008; Gap 0.044"Santa Fe 2007-2009 2.7L 6cyl Gap 0.044"Compatible with INFINITI FX35 2003-2008 3.5L 6cyl Gap 0.044"G35 2003-2007 3.5L 6cyl Gap 0.044"I35 2002-2004 3.5L 6cyl Gap 0.044"M35 2006-2008 3.5L 6cyl Gap 0.044"QX4 2001-2003 3.5L 6cyl Gap 0.044"Compatible with Kia Borrego 2009 3.8L 6cyl To 5/15/2008; Gap 0.044"Magentis 2007-2010 2.7L 6cyl Gap 0.044"Optima 2006-2010 2.7L 6cyl VIN (4); Gap 0.044"Rondo 2007-2012 2.7L 6cyl Gap 0.044"Compatible with Nissan 350Z 2003-2006 3.5L 6cyl Gap 0.044"Altima 2002-2006 3.5L 6cyl Gap 0.044"Frontier 2005-2019 4L 6cyl Gap 0.044"Maxima 2002-2008 3.5L 6cyl Gap 0.044"Murano 2003-2007 3.5L 6cyl Gap 0.044"NV1500 2012-2021 4L 6cyl Gap 0.044"NV2500 2012-2021 4L 6cyl Gap 0.044"NV3500 2012-2021 4L 6cyl Gap 0.044"Pathfinder 2001-2004 3.5L 6cyl Gap 0.044"Pathfinder 2005-2012 4L 6cyl Gap 0.044"Quest 2004-2009 3.5L 6cyl Gap 0.044"Xterra 2005-2015 4L 6cyl Gap 0.044"Compatible with Suzuki Equator 2009-2012 4L 6cyl Gap 0.044"Compatible with Toyota 4Runner 2013-2024 4L 6cyl From 6/2013; Gap 0.044"FJ Cruiser 2013-2014 4L 6cyl From 6/2013; Gap 0.044"Tundra 2013-2014 4L 6cyl From 6/2013; Gap 0.044"

Specs 19

Brand NGK
Core Material Iridium
Thread Size 14mm-1.25mm
Top Material Type Nickel
Vehicle Service Type Car, Truck
Brand Name NGK
Manufacturer Part Number 4469 LFR5AIX11
Number of Items 6

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 13

Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Reliable long-life plugs for my 2013 Xterra
I installed this 6 pack of NGK Iridium IX LFR5AIX-11 plugs in my 2013 Xterra a few years ago and they have been working great ever since. The truck starts quickly, idles smoother, and the throttle response feels more consistent than it did with the worn factory plugs. The plugs arrived well packaged and all looked clean and correctly made. I still checked the gap on each one before install and torqued them to spec. Since then I have had no misfires, no check engine lights, and no weird cold start issues. For the price, the durability has been the best part. I do a mix of city driving and highway trips and they have held up without any drama. If your vehicle calls for this exact plug, I would buy them again. Just make sure you confirm fitment for your engine before ordering. ... show more
Reviewed in the United States on January 15, 2026 by Amazon Customer
They work
They work for a 2020 Jeep.
Reviewed in the United States on August 18, 2026 by Jay Gibbons
Good product
Good product, delivered on time.
Reviewed in the United States on September 27, 2026 by Rami
OEM Quality. Smooth Idle and Easy Install
Fit perfectly and came pre-gapped correctly for my application, which made installation easy. I’ve always heard NGK is the go-to brand for these cars and now I see why. Solid quality and no issues at all so far.
Reviewed in the United States on May 21, 2026 by Dylan
works
works as expected.
Reviewed in the United States on August 10, 2026 by cjs
They fit
Great buy and the real deal, not fakes.
Reviewed in the United States on March 8, 2026 by Carroll
NGK 4469 plug-2015 Nissan Desert Runner
Review Image by SuperDave
Just got around to installing these plugs and they worked like a champ. Plugs in the 4pack did scan as true NGK plugs not knockoffs. The other 2 loose ones were identical. They do appear to come pre-gapped at .042, so I had to open them up a hair to .044 for my 2015 v6 4.0 desert runner. Great value & I Would not hesitate to buy again. *EDIT* For those interested I didn’t know this until I replaced my plugs, but the original plugs were Iridium LASERS. They lasted 150,00 miles, but i see they cost about 3-4x as much. I attached a pic of the originals. NGK makes great plugs and im sure both work fine. Just sharing the information for my fellow DIY’ers! ... show more
Reviewed in the United States on December 22, 2024 by SuperDave
Real NGK Iridium.
Review Image by Becky fugate
First I would like to thank the seller for selling real NGK Iridium spark plugs. Thank you. I just bought a set from ebay that were fakes and these are legit! The real ones metal and threads look like stainless steel while the fakes look blue! There are several ways to tell the difference but that is plain and clear. I would not hesitate buying these plugs. ... show more
Reviewed in the United States on October 11, 2025 by Becky fugate
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