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Part# 08-00504
SizeDescriptionPart No.
(Solid Terminal Nut)


When you require the best, count on The World Leader in spark plug technology NGK Spark Plugs. They offer the highest quality products for virtually every vehicle application. Count on NGK Spark Plugs to deliver the finest quality products and customer service.

Note: The spark plugs listed are not for aircraft application
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Great product and service

Gino C Verified Purchase


June 5, 2021

As expected.

Gary P
April 8, 2021

There spark plugs

Gary P
February 18, 2021

Great plugs to use with Dual E-Mags on my O-360 A1A. At $2.50 each I replace all 8 at each CI. These are the solid core type, which is the type you want to use. Thanks Spruce!

Jim H
November 30, 2020

Good price from Aircraft Spruce!

September 1, 2020

Great plugs for electronic ignition (P-Mags, in my case). As mentioned by another, be sure to get the plugs with non-removable tips. BR8ES 5422 has removable tips while BR8ES 3961 do not. Replace every 100 hours or annual.

Ray E
November 21, 2019

Make sure you buy the solid top plugs for aircraft use not the screw on type. Also check the gap as most car plugs are set to .020 and Rotax runs best on .015

Andrew P
November 15, 2019

Tom L
November 28, 2018

awesome spark plugs if used for their intended purpose

October 26, 2018

Absolutely great started on the 1st crank

Roy K
October 4, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the spark plugs CR5HSB, part # 08-06263, recommended for Rotax 582?

No, Rotax 582 takes a BR8ES spark plug, part # 08-00736.

Q: Which NGK spark plug is recommended for the Rotax 912US/S?

The Rotax 912ULS/S uses NGK DCPR8E spark plugs. Stock part # 08-01228.

Q: Does the NGK DCPR7E have a removable terminal nut?

This will have a solid terminal nut.

Q: I am ordering the DCPR8E for a Rotax 912ULS on an Auto Gyro. You have a disclaimer on the website that the NGK spark plugs are not for aircraft use so I am confused. If they are not for aircraft why are they sold on the web site? Is there a for aircraft use spark plug for this engine?

NGK puts this on all spark plugs for liability. These are the plugs that rotax sells with brand new engines. They are the correct plugs.

Q: In the BR8ES plug does the R signify that it is a resistor type plug?

Yes, R stands for resistor.

Q: For the BR8EIX, part number 08-00650, does it have a solid terminal nut?

Yes. It does have a solid terminal nut.

Q: Does BR9EIX, part number 08-07046, have a solid terminal nut?

Yes. It does have a solid terminal nut.

Q: Does the part # 08-00736 BR8ES plug have a solid tip?

Yes. It does have the solid terminal nut.

Q: Which NGK spark plugs are used for the Rotax 447 engines?

NGK BR8ES can be used for all Rotax 2 stroke engines.

Q: My Rotax 914 UL came with NGK DPR9EA plugs. You do not sell that plug. What would you recommend?

We do sell NGK DR9EA that is used for the 914 UL. It is our part # 08-07375.

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