Just fyi...people need to double check what spark plugs they get at an auto parts store. If I didnt know the actual part number, I would have received a one step hotter plug than what OEM specs for in an NGK brand.

When I pulled the PO spark plugs..guess what...one step hotter plug

 

do you still have those part numbers handy? Which store was it? Good info to share Mr. Thehun... thanks

 

Here is all the correct spark plugs that o'reily carries for our land rover disco D1

Spark Plug - 1997 Land Rover Discovery | O'Reilly Auto Parts

Just fyi you dont want to run a hotter plug in our rides..if anything one step colder....but since we dont have heavy modified engines...OEM spec heat range is the best

 

I just put NGK Iridium plugs in not to long ago how do I tell if it is the right model#(Bought them at advance auto parts)? Is the part # on the link only pertain to o'reily's or is that the NGK #?

 

Cheap stock plugs are fine for the D1. What the owners manual specs are cheap and easy to find.

 

Yeah i wanted cheap..but they still had it wrong in the computer...if you look at the link it shows the actual manufacture number..on NGK its the third line in the link

 

take one plug out and it should be brp6eix..if its different..you got the wrong plug