Symptoms
Service interval due (one high-mileage owner did his at 120k miles), misfires or rough idle.
The fix, step by step
- Follow the IH8MUD plug-change write-ups in the 200 Series FAQ.
- Clean around the coils before removal, swap one cylinder at a time, torque to spec and clear any codes.
Tools & part numbers
- Spark plug socket
- extensions
- torque wrench
- compressed air
- OEM-spec plugs
Where to buy the parts
Spark plug set, URJ200/LX570 3UR (IGN01191SET8)CruiserTeq ↗Amazon ↗
Spark plug tube seal, 2UZ/3UR (VCC70010OEM)CruiserTeq ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Lexus LX 570 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.