NGK
SKU: NGK-2309

Mercedes NGK Spark Plug - NGK LFR7AIX

CL55 AMG, CLS55 AMG, E55 AMG, G55 AMG, S55 AMG, SL55 AMG



Available
In Stock
Price each: $10.76
Core charges are assigned to parts that have reusable components by manufacturers to encourage the return of the used units. Once you return the old part you will be refunded for your core charge, details regarding the return will be emailed to you once you place the order. Note: The customer is responsible for the cost of return shipping.
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To ensure fitment and browse only products that fit, please select a vehicle first.

Description

Details

SKU:
NGK-2309
FCP Euro ID:
114500
GTIN / UPC:
00087295123096
Made in:
Japan
Quality:
Performance

OE Numbers

LFR7AIX, 2309

MFG Numbers

2309

Product Information

Spark Plug

Maintaining your car at suggested service intervals will result in a better performance and improved fuel economy, which is why we suggest changing your spark plugs at the manufacturers suggested service intervals and be sure to check their condition for any warning signs of failure. If your vehicle isn't operating at peak performance it may be time to replace your spark plugs.

Spark Plug Failure Symptoms
  • Misfiring
  • Check Engine Light
  • Hesitation
  • Loss of Power
  • Poor Fuel Economy

About NGK

Since 1936, NGK Spark Plugs has been the world leader in technology, innovation and world-class quality in the design of spark plugs and oxygen sensors. With the expansion of our ignition product, technical sensor and vehicle electronics lines, we are ushering in a new chapter of advancement. With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands. NGK partners with OEMs to develop the latest innovations, making NGK the supplier of choice for nearly every manufacturer. With world-class quality and engineering, their expertise goes beyond the aftermarket to drive the automotive industry forward.

Fits These Cars

Mercedes-Benz CL55 AMG

  • 2003 Mercedes-Benz CL55 AMG Spark Plug
    Automatic RWD Coupe 5.5L V8 113.991 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2004 Mercedes-Benz CL55 AMG Spark Plug
    Automatic RWD Coupe 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2005 Mercedes-Benz CL55 AMG Spark Plug
    Automatic RWD Coupe 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz CL55 AMG Spark Plug
    Automatic RWD Coupe 5.5L V8 113.991 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Mercedes-Benz E55 AMG

  • 2003 Mercedes-Benz E55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2004 Mercedes-Benz E55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2005 Mercedes-Benz E55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz E55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz E55 AMG Spark Plug
    Automatic RWD Wagon 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Mercedes-Benz S55 AMG

  • 2003 Mercedes-Benz S55 AMG Kompressor Spark Plug
    Automatic RWD Sedan 5.5L V8 113.991 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2004 Mercedes-Benz S55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2005 Mercedes-Benz S55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz S55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Mercedes-Benz SL55 AMG

  • 2003 Mercedes-Benz SL55 AMG Kompressor Spark Plug
    Automatic RWD Convertible 5.5L V8 113.992 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2004 Mercedes-Benz SL55 AMG Spark Plug
    Automatic RWD Convertible 5.5L V8 113.992 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2005 Mercedes-Benz SL55 AMG Spark Plug
    Automatic RWD Convertible 5.5L V8 113.992 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz SL55 AMG Spark Plug
    Automatic RWD Convertible 5.5L V8 113.992 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2007 Mercedes-Benz SL55 AMG Spark Plug
    Automatic RWD Convertible 5.5L V8 113.995 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2008 Mercedes-Benz SL55 AMG Spark Plug
    Automatic RWD Convertible 5.5L V8 113.995 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Mercedes-Benz G55 AMG

  • 2005 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2006 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2007 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2008 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2009 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2010 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles
  • 2011 Mercedes-Benz G55 AMG Spark Plug
    Automatic 4WD Sport Utility 5.5L V8 113.993 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Mercedes-Benz CLS55 AMG

  • 2006 Mercedes-Benz CLS55 AMG Spark Plug
    Automatic RWD Sedan 5.5L V8 113.990 Gas
    Notes: One Heat Range Colder for Heavily Modified Vehicles

Product Reviews

9 Reviews

5.0
Average rating
Leave a review
kraammer
on Tue, Jan 20 at 07:02PM
phenomenal plug for my SL%% Boosted.
1 step cooler plug for my boosted sl55, runs perfectly.
CK
on Wed, Apr 13 at 06:40PM
Almost too pretty to hide inside the engine
These are some really pretty spark plugs! NGK says the preset gap is .031. I found most of mine to be dead-on .030, and a couple at .031. They were so close that it was not worth the time or risk to adjust them. These were for my SL55.
Vinh
on Sat, Jan 09 at 03:37AM
One step colder plugs
After install, the car feels smoother. I thought it was because their new but after 3 weeks. Car is still smooth.
Dylan Walsh
on Mon, Jul 13 at 11:47PM
CL55
Great company to work with. Website works great. Only bummer is paid for 2 day shipping and they just arrived today 4-5 days after the order was placed but that’s UPS fault. Can’t wait to order more stuff through you guys though. Great service
Martin
on Sat, Jan 25 at 06:02PM
Worked great, helped the engine run smoothly
One step colder for a modified engine, works great and the car runs healthy.
robert
on Thu, Oct 24 at 11:06PM
ngk LFR7AIX
I had a misfire and did not know if I wanted to go with 1 step colder or oem. spend you're money wisely and get 1 step colder especially if you plan to mod
Dima
on Thu, Jun 27 at 06:50PM
SL55
One step colder plugs work perfect
Harry
on Tue, May 28 at 01:56AM
Best plugs for boosted m113k
These spark plugs are colder rated then oem. Highly recommend these for people running performance parts on their 55s. I have a project 06 s55 with some mods (bmc filters, belt wrap kit, kleeman headers, 70mm pulley, 82mm throttle body, built trans, 630cc injectors, and some cooling mods). I install these on all m113ks that i service.
Tim
on Tue, Jan 01 at 12:29PM
NKG Spark Plugs
My “05” MB E55 has been running smooth since installing the NKG-LFR7AIX plugs. You can’t go wrong with NKG plugs, or with FCP Euro as they offered a great price and fast shipping!

Questions & Answers

Ask a question
Question Posted by Marc
Do these come pre-gapped?
Answer (Posted by FCP Euro Products Team)
Yes
Question Posted by Abner
do they come pre gape already
Answer (Posted by FCP Euro Products Team)
Yes

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