How many spark plugs are in a Lexus RX350?
In most Lexus RX350 models, there are six spark plugs, one for each cylinder of the 3.5-liter V6 engine.
The RX350 line typically uses a 3.5L V6 (2GR-FE) with coil-on-plug ignition, meaning six separate plugs are installed in the engine. This configuration remains common across many model years, though hybrid variants and regional variations can affect details. The information below outlines the core facts about RX350 spark plugs.
Engine and spark plug setup
The RX350's spark plugs are configured for a six-cylinder V6 with individual ignition coils. The following points summarize the essential configuration and maintenance considerations.
Maintenance and replacement considerations
Replacement intervals vary by plug type (copper, platinum, or iridium) and driving conditions. Always refer to the owner's manual or a Lexus service advisor for the recommended interval for your exact model year.
Here are the key facts about the RX350's spark plugs:
- Six spark plugs in total — one for each cylinder in the 6-cylinder V6 engine.
- Coil-on-plug ignition: each spark plug has its own ignition coil, reducing crossfire and improving efficiency.
- Engine type: 3.5-liter V6 (2GR-FE) used in the RX350 across multiple generations.
- Access and replacement: plugs are typically accessed from the top of the engine; replacement intervals depend on plug type and usage.
These points reflect the common setup for RX350 vehicles in most markets. Always verify with your vehicle's owner's manual or a Lexus dealer for your exact model year and region.
Bottom line for owners
In the standard, non-hybrid Lexus RX350, the engine uses six spark plugs — one per cylinder in the six-cylinder V6.
Summary: The RX350's 3.5L V6 engine requires six spark plugs, aligning with its six-cylinder layout. Replacement intervals depend on the spark plug type and driving conditions, so consult the owner's manual for precise guidance.
