All spark plugs have a "gap" set from the factory. Each plug, however, is made to fit multiple applications. You must always check the plug gap, for your particular application, before installation.

Will this fit a 2008 W211 E550 Mercedes ?

It’s compatible with 2008 Mercedes-Benz E550 base and E550 4matic according to the NGK website. It’s pre gap at .031” (0.8mm).

is this original spark plugs or fake?

I too was worried about this. As far as I can tell the ones that I got are real. I checked the packaging and the markings on the new plugs compared to the original plugs and the markings and location were spot on. They have been in for over a year and I have not had any issues.

Ngk Spark Plug Plkr7a Laser Platinum 4288

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$U1437

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Description

⚡ Ignite your drive with platinum precision!

PLATINUM POWER LONGEVITY - Laser-welded platinum center electrode resists erosion for a longer-lasting spark plug life.
TRUSTED BY PROFESSIONALS - Backed by NGK’s 1-year warranty and a 4.7-star rating from 184 users, join the community of savvy drivers.
ENGINEERED FOR EFFICIENCY - Optimized design reduces misfires and improves fuel efficiency, keeping your drive smooth and economical.
PRECISION FIT FOR YOUR RIDE - 14mm thread size tailored for vehicle-specific compatibility guarantees hassle-free installation.
UNMATCHED IGNITION RELIABILITY - Consistent peak performance even in tough conditions ensures your engine starts every time.

The NGK Spark Plug PLKR7A Laser Platinum 4288 delivers superior ignition performance with a durable platinum center electrode that resists erosion, ensuring extended service life. Designed with a precise 14mm thread for vehicle-specific fit, it guarantees reliable starts and improved engine efficiency. Trusted globally and backed by a 1-year warranty, this spark plug is a must-have upgrade for drivers seeking consistent power and longevity.

Specifications

ASIN	B001RLRT9Q
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	131,899 in Automotive ( See Top 100 in Automotive ) 701 in Car Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Car
Core Material	Platinum
Country Of Origin	Thailand
Customer Reviews	4.7 4.7 out of 5 stars (186)
Global Trade Identification Number	00087295142882
Item Type Name	Spark Plug
Item Weight	23 Grams
Manufacturer	NGK
Manufacturer Part Number	4288
Manufacturer Warranty Description	1 Year Manufactuer Warranty
Model Number	PLKR7A
OEM Equivalent Part Number	0041591803, 0041593403, 0041594903, 1882709080, A0041594903
Thread Size	14mm
Top Material Type	Platinum
UPC	087295142882
Unit Count	1.0 count

Reviews

S**W

Second hand item received

Good product. But I recrived the one which had been used.

26.09.2020

J**P

Hyundai spark plug

Used in my daughters Hyundai i10. I had to borrow a long extension because of the recess.

21.01.2020

P**O

Usadas para un clase R350 de 2008, funcionan bien, están a un buen precio y son de calidad

30.11.2020

J**L

Alles ist in Ordnung

24.01.2026

V**N

Very good products and the price is better then other places .

4.08.2017

D**X

Works great on my Royal Enfield meteor 350. Used to upgrade the factory one. Great price vs dealer. Stock is not platinium therefore I am asumming this is better and has a longer life.

28.09.2024

J**2

Parfait pour redonner de la jeunesse au moteur de ma hyundai i20 1,2l de 2012. Ce n'est pas la première fois que je les achète et leur durée de vie est bien supérieur à celle de marque champion utilisée par le constructeur...

9.11.2025

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