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2018 Chevrolet Silverado 1500 Catalytic Converter Replacement Cost in Chicago, IL

Medium
100,000+ miles in normal conditions
Updated June 2026

If you need a catalytic converter replacement on your 2018 Chevrolet Silverado 1500 in Chicago, IL, expect to pay between $1040 and $1578 at a local shop. That breaks down to $765–$1157 for parts and $275–$421 for labor at Chicago's average rate of $120/hour. Read on for a full cost breakdown, money-saving tips, and what to watch out for.

Catalytic Converter Replacement2018 Chevrolet Silverado 1500 in Chicago, IL

$1,040$1,578

Estimated total cost at a shop in Chicago

Parts$765–$1157

73% of total

Labor$275–$421

27% of total

Time

2.53.3 hrs

Shop Rate

$120/hr

DIY Saves

~$-174

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What's Included in This Repair

  • 1Diagnose using OBD-II scanner
  • 2Cut or unbolt failed converter
  • 3Install new direct-fit or universal converter
  • 4Clear codes and verify O2 sensor function
Typical Lifespan:
100,000+ miles in normal conditions
Difficulty:
Medium

Warning Signs You Need This Repair

  • Check engine light with P0420/P0430 codes
  • Rattling sound from under car
  • Failed state emissions inspection
  • Sulfur / rotten egg smell from exhaust
  • Noticeably reduced acceleration

Medium — car may still drive but fails emissions; theft is common

What Drives the Cost in Chicago?

Labor Market: Chicago, IL

Chicago is an above-average labor market, with shops charging $120–$140/hour for labor. For this catalytic converter, you'll pay $275–$421 in labor alone — accounting for approximately 26% of your total bill. Independent shops in Chicago typically run 20–35% cheaper than dealerships.

2018 Chevrolet Silverado 1500 Notes

American-made vehicles like the 2018 Chevrolet Silverado 1500 benefit from widely available aftermarket parts, keeping costs competitive. Parts for this repair typically run $765–$1157 and are stocked by most auto parts stores. The large network of shops familiar with Chevrolet vehicles also keeps labor competition strong.

DIY vs. Paying a Shop

DIY vs. Professional: Not Recommended for DIY

This repair is not recommended as a DIY project. Requires cutting old converter off with a reciprocating saw. Not DIY unless you have a lift and welding capability. The professional rate of $1040–$1578 is fair for the complexity involved. Attempting this repair without the right training risks damaging other components, costing far more in the end.

5 Ways to Save Money on This Repair

  1. 1Get quotes from at least 3 shops in Chicago — prices vary by 25–40% between dealers and independents.
  2. 2Ask specifically if they'll use OEM or aftermarket parts. Aftermarket is fine for most components except catalytic converter on luxury brands.
  3. 3Check if your extended warranty or car insurance covers this repair — some aftermarket warranties cover catalytic converter.
  4. 4If your car is near the end of its useful life, compare repair cost ($1040–$1578) against the vehicle's value.
  5. 5Combine this repair with other deferred maintenance to save on labor — shops often discount when doing multiple jobs at once.
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Frequently Asked Questions

In Chicago, expect to pay $1040–$1578 total for catalytic converter replacement on a 2018 Chevrolet Silverado 1500. Parts run $765–$1157, and labor is $275–$421 (2.5 hours at $120/hr).

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Disclaimer: Cost estimates are based on national parts pricing databases and regional labor rate surveys. Actual prices vary by shop, vehicle condition, and parts availability. Always obtain a written estimate before authorizing repairs. Affiliate disclosure: links marked with Amazon may earn us a small commission.