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2018 Chevrolet Silverado 1500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit2018 Chevrolet Silverado 1500 Change Vehicle

AP Exhaust®
2018 Chevrolet Silverado 1500 - Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)

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$689.49
$1,738.06Save: $1,048.57(60%)
Manufacturer #645159
Guaranteed to Fit2018 Chevrolet Silverado 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2018 Chevrolet Silverado 1500
Custom
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
LT
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
LTZ
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
LS
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
WT
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
High Country
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
LT
6 Cyl 4.3L
Direct Fit
2018 Chevrolet Silverado 1500
Custom
6 Cyl 4.3L
Direct Fit
2018 Chevrolet Silverado 1500
LS
6 Cyl 4.3L
Direct Fit
2018 Chevrolet Silverado 1500
SSV
8 Cyl 5.3L
Direct Fit
2018 Chevrolet Silverado 1500
WT
6 Cyl 4.3L
Direct Fit

Highlights

Part:
Catalytic Converter
Brand:
AP Exhaust
Emissions:
Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Notes:
48 in. overall length
Restricted States:
California|Colorado|New York|Maine
Type:
Catalytic Converter
Product Fit:
Direct Fit
Recommended Use:
OE Replacement
Quantity Sold:
Sold individually
Gasket Included:
With Gasket
Oxygen Sensor Ports:
Factory OEM Ports
Oxygen Sensor Port Location:
Factory OEM Locations
Warranty:
5-year or 50,000-mile AP Exhaust limited warranty on converter body and 25,000-mile limited warranty on emissions
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Tube Material:
Stainless Steel
Fitnotes:
Direct Fit

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2014-2018 Chevrolet Silverado 1500
High Country
8 Cyl 5.3L
Direct Fit
2014-2018 Chevrolet Silverado 1500
LT
8 Cyl 5.3L
Direct Fit
2014-2018 Chevrolet Silverado 1500
LT
6 Cyl 4.3L
Direct Fit
2014-2018 Chevrolet Silverado 1500
LTZ
8 Cyl 5.3L
Direct Fit
2014-2018 Chevrolet Silverado 1500
WT
8 Cyl 5.3L
Direct Fit
Page 1 of 7 | Showing 1 - 5 of 31 results

Product Information

FEDERAL EPA STANDARD, 46-STATE LEGAL (CANNOT SHIP TO OR BE USED IN VEHICLES ORIGINALLY PURCHASED IN CA, CO, NY OR ME) DIRECT FIT AP EXHAUST CATALYTIC CONVERTER

The AP Exhaust catalytic converter has an eco-friendly and energy-efficient design to support maximum pollution reduction. It is constructed with robust materials for long-lasting performance and is a direct-fit component to perfectly replace your old and worn-out catalytic converter.

  • With Clean by Design ceramic substrates to maximize the reduction of pollution
  • Comprehensive vehicle coverage
  • Long-term reliability
  • Lower emissions and environment-friendly
  • Hassle-free installation

Since 1927, AP Exhaust has been recognized as a trusted manufacturer of premium quality mufflers, exhaust pipes, and catalytic converters for automotive, light truck, and heavy-duty applications.

  • This catalytic converter is designed for vehicles with federal EPA emissions standards.
  • 46 state Legal. Cannot ship to CA, CO, ME, or NY as those states follow more stringent California Air Resources Board (CARB) regulations.
  • If your vehicle was originally purchased in CA, CO, ME, or NY, regardless of where you live currently, this item will not be compatible with your car.
  • If you need further assistance, please contact Customer Service.
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
What is the silver ring that’s included with the AP exhaust catalytic converter 645159 for a 2017 gmc sierra Denali?Jose L.Feb 24, 2024
Best Answer:Hi Jose, I'm glad to assist you. Those two round rings as you called them are exhaust gaskets for the end connections of the catalytic converter (there is also one clamp included) for your 2017 GMC Sierra 1500 Denali 8 Cyl 5.3L. Grab our price-cut offer and click the link below to buy it today. Happy shopping! <a href="https://www.carparts.com/catalytic-converter/ap-exhaust/ape645159?can=cpje1043_CSQA_20240223" target="_blank">https://www.carparts.com/catalytic-converter/ap-exhaust/ape645159?can=cpje1043_CSQA_20240223</a>
Jeonino E.STAFFFeb 25, 2024
0
Will this fit my 2017 GMC Sierra 1500 Denali 5.3L?Jose L.Feb 19, 2024
Best Answer:Hi Jose, thank you for reaching out. If your 2017 GMC Sierra 1500 Denali with a 5.3-liter engine has federal emissions exhaust system, then yes. You can use this link to continue ordering this part at a discounted price today: <a href="https://www.carparts.com/catalytic-converter/ap-exhaust/ape645159?can=CPAP3648_CSQA_20240219" target="_blank">https://www.carparts.com/catalytic-converter/ap-exhaust/ape645159?can=CPAP3648_CSQA_20240219</a> I hope this helps. Enjoy shopping.
Aldrin P.STAFFFeb 19, 2024
0
Will this work on my 2015 GMC sierra slt 4x4 engine group FGMXT06.2374 5.3L?Jerry M.Sep 25, 2023
Best Answer:Hi Jerry, I'm pleased to assist you. No, this will not fit. Having an Engine Family Group number means the required converter needs to be CARB or 50-state California Legal. After checking, it turns out FGMXT06.2374 is currently not available. Contact us again if you require any other vehicle parts. Have a nice day!
Grace G.STAFFSep 25, 2023