NGK Spark Plug - CPR8EA-9
SKU: 39072216389

NGK Spark Plug - CPR8EA-9

Sale price$152.07 Regular price$168.97
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Description

NGK Spark Plug - CPR8EA-9Vehicle Fitment & Part Details This NGK spark plug (CPR8EA 9) is supplied as an OEM grade replacement. Heat range 8. Thread M10 x 1,0. Verify VIN engine before ordering. Key Details SKU CPR8EA 9 Alternate Search Reference CPR8EA9 Component Spark Plug Brand NGK Heat Range 8 Part MPN 2306 GTIN Barcode 087295123065 Trade Numbers CPR8EA 9 Product Specifications Thread Size M10 x 1,0 Thread Length [mm] 19,0 Spanner Size 16 mm Spark Position [mm] 3,0

Vehicle Fitment & Part Details

This NGK spark plug (CPR8EA-9) is supplied as an OEM-grade replacement. Heat range 8. Thread M10 x 1,0. Verify VIN/engine before ordering.

Key Details

SKU
CPR8EA-9
Alternate Search Reference
CPR8EA9
Component
Spark Plug
Brand
NGK
Heat Range
8
Part MPN
2306
GTIN / Barcode
087295123065
Trade Numbers
CPR8EA-9

Product Specifications

Thread Size
M10 x 1,0
Thread Length [mm]
19,0
Spanner Size
16 mm
Spark Position [mm]
3,0
Electrode / Construction
Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
Brand Class
Premium

Vehicle Compatibility

Verify VIN/engine and confirm the correct heat range and electrode design for your specific application before ordering.

OEM Reference Numbers

Vehicle OE Numbers

  • Honda: 31916 KRM 841, 31916 KRM 8410 M1, 31916 KRM 8413 M1
  • Kawasaki: 9207 00029, E 9207 00029
  • Yamaha: 94701 00415, 94700 00867, 94700 00415, 94700 00866

Aftermarket Equivalents

  • Bosch: UR4KC, 0 242 050 506, UR4DC, 0 242 050 006
  • Champion: P RG 6 HCC, P RG 6 HCC T10, RG 6 HCC
  • Denso: U24EPR9, 4242
Alternate OEM Search References: 31916KRM841, 31916KRM8410M1, 31916KRM8413M1, 920700029, E920700029, 9470100415

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 your vehicle?
This part (CPR8EA-9) 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: 39072216389

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4.3 ★★★★★
Based on 1457 reviews
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Product Reviews
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Verified Purchase
Cody Craddock
Boise, US
★★★★★ 5
Cheap Replacement
These are an easy replacement for anyone who owns a BMW m52/m54 engine that has PCV issues. My car was burning about 1 quart every 1,000 miles. The parts are direct fit and install fairly easy. If there is resistance, lube the hole or o-ring up with some grease and it will slide in easier. Took me about 2 hours start to finish. My mechanic recommended that I remove the intake manifold to do the job. I don’t see how you could do it without removing the intake manifold. These parts probably won’t last as long as true BMW parts but on a 20 year old car I don’t see the benefit in using genuine BMW parts. Cheap stuff will suffice; worst case it doesn’t last quite as long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2021
S
Verified Purchase
Slickster
Grantham, US
★★★★★ 4
NOT TOO HARD TO INSTALL...
This CCV kit seems adequate. People say that because the hoses supplied with these kits are more brittle than the genuine BMW parts, these are tough to install... But they're really not. The ends on these hoses SWIVEL and you can sort of eyeball which way you need the fitting to be pointing BEFORE you put them on your manifold... They swivel, but they're tight and it takes a little force to turn them. ALSO, a little dab of silicone gel or a spray of silicone out of the can, into the fittings on these makes a world of difference when clicking them on... For the price, I highly recommend the kit.
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Reviewed in the United States on October 14, 2025
P
Verified Purchase
Philip Giuliano
Port Orchard, US
★★★★★ 5
Great value
I recently had to replace the starter on my 2001 325i E46 with about 150k miles. While I had the intake off, I figured it would be a good time to replace the CCV because I was unsure if it had ever been done. My old CCV literally fell apart as I removed it, so I'm glad I replaced it. The new parts were a little tough to put together, but overall came together well enough. A lot can be forgiven for the price. I would recommend assembling the system before installing in your vehicle to get a good sense of how it all goes together and to hopefully loosen up the fittings just a tad before installation. 50skid on youtube has a great DIY for doing this job. I only finished this job yesterday, but my car has been running great. I can't yet confirm, but this may have solved my running lean problem.
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Reviewed in the United States on January 27, 2023
C
Verified Purchase
Craig Randall
Carnegie, US
★★★★★ 3
Cheap plastic parts -- good fit
They are what they are: Cheap plastic parts. They fit, but long-term durability will be a challenge. Probably will buy from FCP Euro going forward (and just did for a fuel line replacement).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2024
R
Verified Purchase
ruben rodriguez
Draper, US
★★★★★ 5
2001 325i
Great quality fits perfect durable. no more leaks works great. Great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024

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