GMC K3500 Catalytic Converter Replacement at your home or office.

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Catalytic Converter Replacement Service

How much does a Catalytic Converter Replacement cost?

On average, the cost for a GMC K3500 Catalytic Converter Replacement is $986 with $891 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1985 GMC K3500V8-6.2L DieselService typeCatalytic Converter ReplacementEstimate$1920.11Shop/Dealer Price$2377.64 - $3723.23
1986 GMC K3500V8-7.4LService typeCatalytic Converter ReplacementEstimate$1966.69Shop/Dealer Price$2441.89 - $3840.43
1986 GMC K3500L6-4.8LService typeCatalytic Converter ReplacementEstimate$1966.69Shop/Dealer Price$2441.88 - $3840.42
1980 GMC K3500V8-6.6LService typeCatalytic Converter ReplacementEstimate$1886.61Shop/Dealer Price$2343.13 - $3687.97
1981 GMC K3500L6-4.8LService typeCatalytic Converter ReplacementEstimate$1947.69Shop/Dealer Price$2420.90 - $3817.95
1983 GMC K3500L6-4.8LService typeCatalytic Converter ReplacementEstimate$1947.69Shop/Dealer Price$2420.88 - $3817.92
1985 GMC K3500V8-7.4LService typeCatalytic Converter ReplacementEstimate$1972.69Shop/Dealer Price$2447.72 - $3846.14
1980 GMC K3500L6-4.8LService typeCatalytic Converter ReplacementEstimate$1952.69Shop/Dealer Price$2426.12 - $3823.34
Show example GMC K3500 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.

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Excellent Rating

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Alex

20 years of experience
138 reviews
Alex
20 years of experience
GMC K3500 V8-7.4L - Starter - Glen Ellyn, Illinois
Extremely professional and well versed in auto mechanics. Explained things simply and was able answer my questions clearly

Francisco

10 years of experience
174 reviews
Francisco
10 years of experience
GMC K3500 V8-6.5L Turbo Diesel - Battery - Portland, Oregon
Francisco was great. Not a super complicated service this time, but he was very thorough and helpful. Thanks

Theodore

16 years of experience
1610 reviews
Theodore
16 years of experience
GMC K3500 L6-4.8L - Battery - Bellevue, Washington
Hes awesome, super helpful every time!

Breck

20 years of experience
681 reviews
Breck
20 years of experience
GMC Yukon XL 1500 V8-5.3L - Catalytic Converter - Houston, Texas
Breck arrived on time and worked on our truck for at least five hours for the multiple issues associated with it! He provided excellent service and the truck is running like a dream. We still have a few more things to fix and we know YourMechanic.com is the perfect fit for us. Thanks Breck! Awesome job!

Excellent Rating

(4)

Rating Summary
3
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3
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Number of GMC Catalytic Converter Replacement services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
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