Spark Plug Replacement for a Lexus Rx350 typically costs $184–$402 in the US (adjusted for typical Lexus parts and labor costs). DIY-able for most owners with standard tools.
The estimated fair cost range for spark plug replacement on a Lexus Rx350 in 2026 includes parts and labor benchmarked across regional repair providers.
Standard Estimator
$184 — $402
Status
FAIR PRICE*Note: Pricing for Lexus vehicles can be higher than average due to specific diagnostic software requirements and standard service intervals.
Most owners prefer OEM-equivalent parts to maintain performance and resale value.
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Four practical ways to lower your out-of-pocket cost without sacrificing quality or safety.
Replacement parts typically cost $25–$130; professional labor accounts for the rest of the bill. If you have basic tools, doing it yourself saves 100% of the mechanic labor charge.
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Common repairs with pricing tailored to your Lexus Rx350.
Compare pricing for this repair across popular makes and models.
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