Lexus SC400 Catalytic Converter Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(37)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(37)

Catalytic Converter Replacement Service

How much does a Catalytic Converter Replacement cost?

On average, the cost for a Lexus SC400 Catalytic Converter Replacement is $407 with $302 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1994 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$833.03Shop/Dealer Price$1024.74 - $1566.80
2000 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$709.73Shop/Dealer Price$875.65 - $1340.25
1992 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$813.03Shop/Dealer Price$1004.77 - $1546.85
1999 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$709.73Shop/Dealer Price$875.61 - $1340.18
1996 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$813.03Shop/Dealer Price$1004.80 - $1546.90
1998 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$813.03Shop/Dealer Price$1004.77 - $1546.85
1997 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$833.03Shop/Dealer Price$1020.33 - $1559.08
1995 Lexus SC400V8-4.0LService typeCatalytic Converter ReplacementEstimate$833.03Shop/Dealer Price$1020.99 - $1560.22
Show example Lexus SC400 Catalytic Converter Replacement prices

What is the Catalytic Converter all about?

The catalytic converter is an emissions related component that is mounted in the exhaust pipe. Its purpose is to superheat unburned particles in the exhaust gases that are expelled from the engine. As the engine runs, the catalytic converter warms up to an operating temperature of 500-1200 °F. At this temperature the particles in the ‘dirty’ exhaust are burned and converted into water vapor and carbon dioxide. The catalyst inside is nearly always comprised of precious metals such as platinum, rhodium, or palladium. When the catalyst isn’t able to burn off the unburned hydrocarbons in the exhaust, an unpleasant odor can occur, a rough run or misfire may be felt, or the Check Engine light may illuminate.

Keep in mind:

  • Most cars will require the aftermarket Catalytic Converter to be welded to the exhaust pipes. Mobile mechanics can only do this service if you have a direct fit catalytic converter bought from a dealer.
  • When replacing the catalytic converter, it may be necessary to replace oxygen sensors as well.
  • Catalytic converter symptoms are often similar to other more straightforward issues. Get the Check Engine light diagnosed anytime it illuminates.

How it's done:

  • The vehicle is raised and supported on jack stands
  • The defective catalytic converter is removed
  • The new catalytic converter is installed and the vehicle is started to check for any leaks
  • The vehicle is lowered off the jack stands
  • The vehicle is road tested for proper operation

Our recommendation:

If you are consistently taking short trips with your vehicle, the catalytic converter may not be getting hot enough to completely burn away the hydrocarbons. To prevent the catalytic converter from getting clogged, take your vehicle for the occasional drive on the highway for 15 minutes. This allows the exhaust to sufficiently heat up and burn off any deposits in the catalytic converter.

What common symptoms indicate you may need to replace the Catalytic Converter?

  • Check engine light is on or flashing
  • Car has little or no power
  • Smell of rotten eggs inside the car or out of the exhaust
  • Poor fuel economy
  • Backfiring and rough running

How important is this service?

If the catalytic converter isn’t operating efficiently, the check engine light will come on and your engine can begin to lose performance. If the catalytic converter becomes plugged, the engine light will begin to flash and your engine may stall or no longer start. In extreme cases where the converter is plugged, the excess back pressure created can actually cause internal engine damage. If you are experiencing symptoms related to catalytic converter failure, get it checked soon.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(37)

Rating Summary
34
0
0
1
2
34
0
0
1
2

Jason

20 years of experience
26 reviews
Jason
20 years of experience
Lexus SC400 V8-4.0L - Loud screeching noise when I start the car - Atlanta, Georgia
Jason was very knowledgeable and able to quickly identify the circumstances that were affecting my vehicle from functioning properly. I would contact him again for future business.

Kevin

24 years of experience
554 reviews
Kevin
24 years of experience
Lexus SC400 V8-4.0L - Radiator - Atlanta, Georgia
Top notch.

Robert

31 years of experience
641 reviews
Robert
31 years of experience
Lexus SC400 V8-4.0L - Smoke from engine or exhaust - Menlo Park, California
Robert was timely and efficient. He gave great feedback and I trusted his advice. I would absolutely recommend him and use him again. Thanks Robert!

Nolan

30 years of experience
225 reviews
Nolan
30 years of experience
Lexus SC400 V8-4.0L - Car is not starting - Tucson, Arizona
Nolan was very professional and thorough working hard to isolate the problem.

Excellent Rating

(37)

Rating Summary
34
0
0
1
2
34
0
0
1
2
Number of Lexus SC400 services completed
407+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

Recent articles & questions

Top 10 Tire Safety Issues Every Car Owner Needs to Know
Car tires are vulnerable to punctures, flats, and other failures. If you see underinflation, overinflation, or uneven tire wear, get it it inspected.
Symptoms of a Bad or Failing Brake Wheel Cylinder
If your car has drum brakes and a spongy brake pedal, poor brake response, and leaking brake fluid, you may need a brake wheel cylinder replacement.
Symptoms of a Bad or Failing Shift Indicator (Automatic Transmission)
Common signs include the Check Engine Light coming on, the wrong gear reading, and the shift indicator not moving.

How do I adjust the power front seats?

The power front seats are controlled by the power switches on the outboard side of the seats, and can be adjusted in up to four different ways, depending on how your vehicle is equipped: 1. To move the seats horizontally,...

Fob won't open driver door without using key

It sounds like the most likely cause of this fault is the driver's door lock actuator (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-door-lock-actuator). When these fail, they will only function when used manually with the key. A qualified technician, such as one from YourMechanic, will be...

My rear tire on the driver side feel hot?

Hello there, thank you for asking about your 2005 Honda CR-V. It is normal for tires to get a little warm after driving on the highway. If one tire is warmer than the others, then first check to make sure...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com