Oxygen Sensor Replacement Estimate for Lexus SC400

Lexus SC400 Oxygen Sensor Replacement costs $204 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$195 to $225
Labor: $70 -$88
Parts: $125 -$137
Average Dealer price
$343 to 376
Average Shop price
$239 to 263
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1992 Lexus SC400V8-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$224.86Shop/Dealer Price$289.77 - $421.63
1998 Lexus SC400V8-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$209.39Shop/Dealer Price$270.57 - $390.93
1997 Lexus SC400V8-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$209.39Shop/Dealer Price$270.49 - $390.78
1999 Lexus SC400V8-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$209.39Shop/Dealer Price$270.53 - $390.85
1995 Lexus SC400V8-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$217.86Shop/Dealer Price$280.25 - $410.22
1993 Lexus SC400V8-4.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$224.86Shop/Dealer Price$289.77 - $421.62
1992 Lexus SC400V8-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$218.54Shop/Dealer Price$281.24 - $411.82
2000 Lexus SC400V8-4.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.39Shop/Dealer Price$261.01 - $379.45
Show example Lexus SC400 Oxygen Sensor Replacement prices

Parts required for a Lexus SC400 Oxygen Sensor Replacement

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

450 reviews
Ben
36 years of experience
Ben was on time, explained the process and completed the job to my satisfaction. Would surely recommend.
2006 LEXUS RX400H - TIMING BELT REPLACEMENT
Want Ben's expert advice? Ask your question now. Its free!
445 reviews
Chris
17 years of experience
Second time with Chris was as good as the first. Definitively would recommend.
1993 LEXUS SC400 - PRE-PURCHASE CAR INSPECTION
Want Chris's expert advice? Ask your question now. Its free!
249 reviews
Russell
19 years of experience
Did a great job
2005 LEXUS LX470 - OTHER INSPECTIONS
Want Russell's expert advice? Ask your question now. Its free!
184 reviews
Robert
37 years of experience
Do not like the communication with your company...Very difficult. .
2003 LEXUS SC430 - TIMING BELT REPLACEMENT
Want Robert's expert advice? Ask your question now. Its free!

All about Oxygen Sensor Replacement

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor. Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor Replacement Estimates for Popular Lexus Models