My mechanic Dennis from Tulla Car Care has just replaced the original land rover plugs LR000604 to the NGK V-Power 2683 after we had cylinder 1 misfire issues due to the insualator being cracked. Original plugs were only put on 40k ago as per schedule 144k but mechanic beleives they were already feathering out etc... The original plugs were branded Motorcarft and are probably the rebranded Motorcraft SP-498 which makes sense as I have the V6 petrol which is a ford engine. Car running beautifully again. Will repost if theer are any issues down the track.
The link below shows the different spark plaugs that can be used in the D3 V6 petrol models.
Land Rover LR3 Spark Plugs
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