Spark Plugs V7III Special

[Kiwi_Roy]

My V7III Special has done almost 35,000 KM (21,875 miles) on the original plugs.
I think I should spoil it and replace with a new set.
If I google it tells me NGK CPR8EB-9, I think these are standard resistor type
Any other recommendations?
e.g. Iridium plugs or other brands
thanks
Roy

[Vagrant]

Mine have 32500 on them. Gap the old ones and ride.

[Moparnut72]

MG must own a bunch of stock in spark plug companies.    I have never changed spark plugs as routine maintenance. My only two high mileage vehicles have been diesels. A V6 Chrysler I owned recommended the spark plugs be changed at 100K, they were iridium though.
kk

[Kiwi_Roy]

Does anyone know how to cross reference iridium plugs to the usual type?

[DoubleGuzzi]

Does anyone know how to cross reference iridium plugs to the usual type?

30 second search:
https://www.clubplug.ca/static/pdf/ngk-to-ngk-iridium-cross-reference-charts.pdf

[Kiwi_Roy]

The cross reference doesn't list the original NKG ZCPR8EB-9s as per the manual
I picked up a pair as listed at a local auto store and changed them out
3mm allen key, a 16mm deep socket, a smidgen of Never Seize and 20 minutes later.

[DoubleGuzzi]

The cross reference doesn't list the original NKG ZCPR8EB-9s as per the manual

Drop the unusual Z (Inductive Suppressor or Extra Projected?) prefix and there's an equivalent CR8EIX.

https://www.ngkpartfinder.co.uk/assets/Uploads/ngk_motorcycle_sm00100420_2_.pdf
https://www.ngkpartfinder.co.uk/assets/Uploads/NGK_Upgrades.pdf