SKU: 74123357663

NGK Spark Plug for VW & Mercedes-Benz - BKR5EKU

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Description

NGK Spark Plug for VW & Mercedes-Benz - BKR5EKUVehicle Fitment & Part Details This NGK spark plug (BKR5EKU) is supplied as an OEM grade replacement. Heat range 5. Thread M14 x 1,25. Verify VIN engine before ordering. Key Details SKU BKR5EKU Component Spark Plug Brand NGK Heat Range 5 Part MPN 3964 GTIN Barcode 087295139646 Trade Numbers BKR5EKU Product Specifications Thread Size M14 x 1,25 Thread Length [mm] 19,0 Spanner Size 16 mm Spark Position [mm] 4,7 Electrode Construction Nickel Middle

Vehicle Fitment & Part Details

This NGK spark plug (BKR5EKU) is supplied as an OEM-grade replacement. Heat range 5. Thread M14 x 1,25. Verify VIN/engine before ordering.

Key Details

SKU
BKR5EKU
Component
Spark Plug
Brand
NGK
Heat Range
5
Part MPN
3964
GTIN / Barcode
087295139646
Trade Numbers
BKR5EKU

Product Specifications

Thread Size
M14 x 1,25
Thread Length [mm]
19,0
Spanner Size
16 mm
Spark Position [mm]
4,7
Electrode / Construction
Nickel Middle Electrode, 2 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
Brand Class
Premium

Vehicle Compatibility

Common fitments include Mercedes-Benz (C-CLASS, C-CLASS (W202), E-CLASS, E-CLASS T-Model (S124), E-CLASS (W210), E-CLASS Coupe (C124), E-CLASS Convertible (A124), SL, +1 more); VW (CORRADO, GOLF, PASSAT, SHARAN). Always confirm the correct heat range and electrode design for your specific engine variant by VIN before ordering.

OEM Reference Numbers

Vehicle OE Numbers

  • Audi: 101 000 035 AB, 101 000 035 AA
  • Bentley: 101 000 035 AB, 101 000 035 AA
  • VW: 101 000 035 AB, 101 000 035 AA

Aftermarket Equivalents

Aftermarket Equivalents (Champion)

  • OE085, OE085 T10, RC9BMC, LAMBORGHINI, 101 000 035 AA, 101 000 035 AB, SEAT, SKODA
Alternate OEM Search References: 101000035AB, 101000035AA, OE085T10

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 VW?
This part (BKR5EKU) 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: 74123357663

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4.4 ★★★★★
Based on 7 reviews
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Verified Purchase
Liz Newman
Chelsea, US
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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Janola
Houston, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
R
Verified Purchase
Reviewer
Belleville, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
B
Verified Purchase
Brittany
Belleville, US
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Janessa L.
Grantham, US
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.) They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo. Just a heads up, they are on the thin side and just a bit see through in the rear. I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025

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