SKU: 740221068

NGK Spark Plug for Mercedes-Benz & Chrysler - IFR6D-10

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Description

NGK Spark Plug for Mercedes-Benz & Chrysler - IFR6D-10Vehicle Fitment & Part Details This NGK spark plug (IFR6D 10) is supplied as an OEM grade replacement. Heat range 6. Thread M14 x 1,25. Verify VIN engine before ordering. Key Details SKU IFR6D 10 Alternate Search Reference IFR6D10 Component Spark Plug Brand NGK Heat Range 6 Part MPN 5344 GTIN Barcode 087295153444 Trade Numbers IFR6D10 Product Specifications Thread Size M14 x 1,25 Thread Length [mm] 19,0 Spanner Size 16 mm Spark Position [mm] 3,5

Vehicle Fitment & Part Details

This NGK spark plug (IFR6D-10) is supplied as an OEM-grade replacement. Heat range 6. Thread M14 x 1,25. Verify VIN/engine before ordering.

Key Details

SKU
IFR6D-10
Alternate Search Reference
IFR6D10
Component
Spark Plug
Brand
NGK
Heat Range
6
Part MPN
5344
GTIN / Barcode
087295153444
Trade Numbers
IFR6D10

Product Specifications

Thread Size
M14 x 1,25
Thread Length [mm]
19,0
Spanner Size
16 mm
Spark Position [mm]
3,5
Electrode / Construction
Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 1 kOhm, with gasket seat, Fixed SAE connector
Brand Class
Premium

Vehicle Compatibility

Common fitments include Chrysler (CROSSFIRE); Mercedes-Benz (A-CLASS, B-CLASS, C-CLASS, CLK, E-CLASS, SLK). Always confirm the correct heat range and electrode design for your specific engine variant by VIN before ordering.

OEM Reference Numbers

Vehicle OE Numbers

  • AMG: 003 159 97 03 26, A 003 159 97 03, A 003 159 97 03 26, 003 159 97 03
  • Mercedes-Benz: 003 159 97 03, A 003 159 97 03 90, 003 159 97 03 26, A 003 159 97 03, A 003 159 97 03 26
  • Smart: A 003 159 97 03 26, 003 159 97 03, 003 159 97 03 26, A 003 159 97 03, STEYR

Aftermarket Equivalents

  • Beru By Driv: Z170
  • Borgwarner (Beru): Z 170, 0001335910, Z 171, 14F7DPURX2, Z 282, 14FGH7DPURX2, 0001335905
  • Bosch: 0241235739, F7DPP332, 0 242 236 544, 38
  • Champion: CCH9805, KC8WYPB4, MAYBACH, A 003 159 97 03, A 003 159 97 03 26, 003 159 97 03, 003 159 97 03 26
Alternate OEM Search References: 003159970326, A0031599703, A003159970326, 0031599703, A003159970390, Z171

Fitment Notes

  • Always match heat range, thread size and electrode design before ordering. Verify VIN/engine.

Important: Spark plugs are not returnable, exchangeable, or refundable once fitted. Confirm you are ordering the correct part for your vehicle. Compare the new spark plug to the removed plug for thread reach, thread diameter, hex size, electrode style, gap specification, and heat range before fitting. Mismatched spark plugs can cause misfires, pre-ignition, detonation, fouling, or engine damage.

Returns Notice: Once a spark plug has been fitted or threaded into a cylinder head, it cannot be returned, exchanged, or refunded under any circumstances.

Installation / Use / Maintenance Tips

  • Allow the engine to cool fully before removal - cylinder heads are easily damaged when warm.
  • Use the correct deep-socket plug spanner (16 mm) and avoid impact tools.
  • Inspect the existing plug for fouling, oil contamination, or worn electrodes - may indicate engine condition issues.
  • Verify the gap if your supplied plug is not factory-set; consult your service manual for the correct value.
  • Apply a small amount of anti-seize to the threads (sparingly) and torque to manufacturer specification.

Common Questions

Will this NGK spark plug fit my Mercedes-Benz?
This part (IFR6D-10) is listed for the applications shown on this page. Always confirm the correct heat range, thread size and electrode design against your vehicle's service manual or a parts lookup before ordering. Verify VIN/engine.

What does the NGK part code mean?
The NGK trade number encodes physical and performance characteristics - thread/reach, electrode design, heat rating, and projection. Each digit and letter has meaning in NGK's naming convention. The heat range is usually the standalone digit (e.g. BPR6ES is heat range 6).

What is the difference between this NGK plug and a Bosch / Champion / Denso equivalent?
The cross-references listed under OEM Reference Numbers are functionally equivalent for the same applications, but materials, electrode design and heat dissipation can differ slightly. NGK is OEM-supply quality and most manufacturers specify NGK or Denso as their factory plug.

How do I confirm fitment if my engine variant isn't listed?
Match the supplied thread size, reach, electrode design and heat range against your existing plug. If unsure, request fitment assistance before ordering.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 740221068

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4.0 ★★★★★
Based on 8 reviews
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Verified Purchase
David
Boise, US
★★★★★ 5
Exceeded expectations in every way.
Size: 2' x 3' (Sheepskin shape), Color: Gray Tip, Size: 2' x 3' (Sheepskin shape), Color: Gray Tip
I purchased a pair of these a week apart, because the price seemed too good to be true. Instead, they have exceeded my expectations. I own a Buick with leather seats that look incredible, but are not comfortable on long trips, and my wife and I were preparing to leave on a 2200 mile round trip vacation. On the first day, we drove 700 miles, much of it through desert. We were tired when we reached our destination, but comfortable and cool for every mile of it. The sheepskins have made such a difference, that I have never removed them from the car. It is now July, with triple digit temperatures every day, surrounded by desert. The sheepskin keep us cool on every drive. I could have purchased sheepskin seat covers, but these provide the same comfort for a fraction of the cost. Yes, it takes a small amount of effort to adjust them when you first get into the car, but I don't even think about it any more. As far as the quality, there is no shedding, no smell, and no discoloration. We have put over 4,000 miles on the car since I put these in, and I have no complaints to register.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2025
B
Verified Purchase
Billy
Pawtucket, US
★★★★★ 5
Great article
An excellent article. I use it on my furry cover and it works great. My cover looks fluffy and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
L
Verified Purchase
Lisa
San Leandro, US
★★★★★ 5
Great for blankets
Great for making sherpa or fur blankets soft again after wash. I imagine it'll work well for fur hoods as well. It did a good job of removing lose hair fibers and the quality is good, even if it's extra spikey. Overall, affordable solution and good looking brush to rejuvenate faux fur
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
A
Verified Purchase
And N
Waukegan, US
★★★★★ 5
Great but Pain
It’s alright, does the job as it is supposed to. It’s easy to use and helped fix my Uniqlo jacket that was all matted. It didn't restore it to it's original form however it did unmat it. If I bought this way before and touched up the jacket, I think it would of been perfect to this day still. Maintenance of those jackets are a must! The brush is strong and works well for fluffing it up because of the metal wiring. The only bad parts are that it can hurt if you accidentally poke or scratch yourself, I actually got cut by it when I quickly was brushing. It’s kind of hard to get the lint off the brush but it's better than others and might hurt because of the metal. But overall, it’s a cool tool that makes my jacket fluff again!
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Reviewed in the United States on August 24, 2024
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Verified Purchase
Watasnozle
Port Orchard, US
★★★★★ 4
Works well, however…
Purchased this to give life back to my Sherpa backed blankets. This is a well made brush handle is comfortable. The teeth are strong and durable. They did not bend around while I used it and maintained its shape. The problem I guess I’m seeing is that it doesn’t get deep down into the fabric to it’s just a surface “petting”. Maybe if the teeth were further apart or something. But does seem to provide some form of fluff.
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Reviewed in the United States on March 19, 2026

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