Oxygen Sensor Replacement Estimate for Saturn LW300

Saturn LW300 Oxygen Sensor Replacement costs $194 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$194 to $204
Labor: $70 -$80
Parts: $124
Average Dealer price
$340
Average Shop price
$238
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2002 Saturn LW300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$251.51 - $362.59
2001 Saturn LW300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$201.12Shop/Dealer Price$248.49 - $357.77
2003 Saturn LW300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$201.12Shop/Dealer Price$248.44 - $357.69
2002 Saturn LW300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$201.12Shop/Dealer Price$248.46 - $357.73
2003 Saturn LW300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$251.52 - $362.61
2001 Saturn LW300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$251.50 - $362.58
Show example Saturn LW300 Oxygen Sensor Replacement prices
i
Have a car question? Get free advice from our top-rated mechanics.

Parts required for a Saturn LW300 Oxygen Sensor Replacement

Meet some of our expert Saturn mechanics

Real customer reviews from Saturn owners like you.

115 reviews
Robert
27 years of experience
Robert was great. Very knowledgeable. Was a great experience.
2009 SATURN OUTLOOK - BRAKES, STEERING AND SUSPENSION SYSTEM INSPECTION
Want Robert's expert advice? Ask your question now. Its free!
110 reviews
Joel
16 years of experience
This is my second time using Your Mechanic with Joel as my technician. He was prompt and very professional and knowledgeable. I have gotten to the point, that Joel will always be first choice.
2000 SATURN SL1 - SERPENTINE/DRIVE BELT REPLACEMENT
Want Joel's expert advice? Ask your question now. Its free!
105 reviews
Alfredo
16 years of experience
isolated the problem, bad wiper motor, and replaced it the next day. Very methodical in his work. Took great care not to damage the car during disassembly and reassembly. Lots of parts had to be removed to get to wiper motor. He knew what he was doing and how to do it. Good Job!!
1997 SATURN SL2 - WIPERS ARE NOT WORKING INSPECTION
Want Alfredo's expert advice? Ask your question now. Its free!
55 reviews
Chris
6 years of experience
Excellent!
2009 SATURN AURA - ENGINE MOUNT REPLACEMENT (SIDE)
Want Chris'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 Saturn Models