Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › AP Exhaust › Exhaust Systems
AP Exhaust
AP Exhaust 644076 EPA Catalytic Converter

AP Exhaust 644076 EPA Catalytic Converter

Best price now

$113.16at elettrodomestici.shopChecked 14 h ago

60% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

Visit elettrodomestici.shop

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $113.16 at elettrodomestici.shop on Nov 9.
  • Checked at 13 stores.

Our take on the AP Exhaust 644076 EPA Catalytic Converter

The AP Exhaust 644076 is a direct-fit, EPA-compliant catalytic converter for the Buick Encore from 2013 to 2022. It uses a ceramic substrate and a two-bolt welded flange, and it bolts on in place of the factory unit with no fabrication. It is a federal EPA converter, not a California CARB-legal one, so check your state's rules before buying. Against OEM converters it is a lower-cost replacement with comparable fit; against universal weld-in converters it saves labor because it mounts directly.

Best forBuick Encore owners replacing a failed or rusted converterDrivers in states that follow federal EPA rulesOwners who want a bolt-on fit without weldingRepair shops doing OE-style replacement work
Pros
  • Direct fit for the Buick Encore, 2013 to 2022
  • Ceramic substrate with OE-style dimensions
  • Two-bolt welded flange and single inlet and outlet
  • Includes gasket and hardware where needed
  • EPA compliant for federal emissions states
  • Light at about 8 lbs
Cons
  • Not legal for California or CARB-required states
  • Ceramic substrate can crack from impact or rich-running engines
  • Only fits the listed Encore years and engine
  • No CARB executive order number

AP Exhaust 644076 EPA Catalytic Converter prices at every store

  • elettrodomestici.shopNew

    In stock

    $113.16Checked 14 h ago
    Visit elettrodomestici.shop
  • Partsgeek.comNew

    In stock

    $228.12Checked 14 h ago
    Visit Partsgeek.com
  • Auto BarnNew

    In stock

    $245.53Checked 14 h ago
    Visit Auto Barn
  • Revamp PartsNew

    In stockSold by USA

    $254.50Checked 14 h ago
    Visit Revamp Parts
  • CARiD.comNew

    In stock

    $263.90Checked 14 h ago
    Visit CARiD.com
  • CarParts.comNew

    In stock

    $284.99Checked 14 h ago
    Visit CarParts.com
  • Summit RacingNew

    In stock

    $290.99Checked 14 h ago
    Visit Summit Racing
  • AutoZoneNew

    In stock

    $447.99Checked 14 h ago
    Visit AutoZone
  • NAPANew

    In stock

    $564.99Checked 14 h ago
    Visit NAPA
  • eBayNew

    Availability unknownSold by autobuffy (99.6% positive, 25,700 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $281.95Free shippingChecked 14 h ago
    Visit eBay
  • WalmartNew

    Out of stock

    $282.89Checked 14 h ago
    Visit Walmart
  • JEGS High PerformanceNew

    Out of stock

    $290.99Checked 14 h ago
    Visit JEGS High Performance
  • NAPA Auto PartsNew

    Out of stock

    $490.99Checked 14 h ago
    Visit NAPA Auto Parts

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

AP Exhaust 644076 EPA Catalytic Converter price history

Lowest price we've seen: $113.16 on Nov 9 at elettrodomestici.shop. Tracked across 13 stores since Nov 9.

What reviewers say

Owner feedback on AP Exhaust direct-fit converters is limited but generally positive on fit and installation. Buyers mainly note that it bolts up like the original and quiets the exhaust again. Complaints center on durability in rust-belt cars and the California restriction.

What people mention
  • FitPraisedOwners say it mounts to the factory flanges without modification.
  • EmissionsMixedIt clears federal emissions, but buyers in CARB states cannot use it.
  • DurabilityMixedSome report the ceramic core holds up well; others see repeat failure when the engine burns oil.
  • InstallationPraisedThe included gasket and two-bolt flange make the swap straightforward.
  • ValuePraisedBuyers see it as a cheaper OE-style replacement than a dealer part.

About the AP Exhaust 644076 EPA Catalytic Converter

AP Exhaust 644076 Catalytic Converter. Federal / EPA Catalytic Converter - Direct Fit. ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.

Specifications

Material Type
Stainless Steel
Vehicle Make
Buick
Vehicle Model
Encore
Vehicle Year
2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
Exhaust System Type
Direct Fit
Compatibility Notes
Specifically engineered for OBDII equipped vehicles
Vehicle Type
Car

Questions and answers

Is this converter legal in California?
No. It is EPA compliant only and has no CARB executive order, so it cannot be sold or installed in California or other CARB-required states.
Which Buick Encore years does it fit?
It is listed for the 2013 through 2022 Buick Encore. Confirm your engine and trim before ordering, since fitment can vary.
Does it come with gaskets and hardware?
Yes, gaskets and hardware are included where needed. Reuse the factory bolts only if they are in good shape.
Will it fix a check engine light for a P0420 code?
It can, if the code comes from a failed converter. Diagnose first, because a P0420 can also come from an oxygen sensor or an exhaust leak.
Is it a direct fit or weld-in?
It is a direct fit with a two-bolt welded flange and single inlet and outlet, so it bolts to the factory exhaust.
How heavy is it?
About 8 lbs, with an overall length of roughly 17.9 inches and a 2.38-inch outlet.
Where is the AP Exhaust 644076 EPA Catalytic Converter cheapest?
At elettrodomestici.shop, for $113.16, 60% under what the other stores charge, as of our latest check.
Where can I buy the AP Exhaust 644076 EPA Catalytic Converter?
13 stores we checked sell it, including Walmart, eBay, NAPA, elettrodomestici.shop, Partsgeek.com.

Stores we've priced the AP Exhaust 644076 EPA Catalytic Converter at

  • elettrodomestici.shop deals and prices
  • Walmart deals and prices

More from AP Exhaust

  • A
    AP Exhaust 641499 Catalytic Converter
    AP Exhaust 641499 Catalytic Converter
  • A
    AP Exhaust 642311 Catalytic Converter
    AP Exhaust 642311 Catalytic Converter
  • A
    AP Exhaust 644188 EPA Catalytic Converter
    AP Exhaust 644188 EPA Catalytic Converter
  • A
    AP Exhaust Y-Pipe
    AP Exhaust Y-Pipe
  • A
    AP Exhaust Direct-Fit Catalytic Converter
    AP Exhaust Direct-Fit Catalytic Converter
  • A
    AP Exhaust 645194 Catalytic Converter
    AP Exhaust 645194 Catalytic Converter
  • A
    AP Exhaust 751086 Catalytic Converter with Integrated Exhaust Manifold
    AP Exhaust 751086 Catalytic Converter with Integrated Exhaust Manifold
  • A
    AP Exhaust 612004 Catalytic Converter
    AP Exhaust 612004 Catalytic Converter
All AP Exhaust deals and products →

More catalytic converters

  • W
    Walker Exhaust 53782 Ultra Direct-Fit Catalytic Converter
    Walker Exhaust 53782 Ultra Direct-Fit Catalytic Converter
  • M
    MagnaFlow Direct Fit Catalytic Converter 00-05 Blazer 4.3L
    MagnaFlow Direct Fit Catalytic Converter 00-05 Blazer 4.3L
  • M
    MagnaFlow 09-14 Ford E-150 California Grade CARB Compliant Direct-Fit Catalytic Converter - 5551294
    MagnaFlow 09-14 Ford E-150 California Grade CARB Compliant Direct-Fit Catalytic Converter - 5551294
  • W
    Walker Exhaust CalCat Direct Fit Catalytic Converter
    Walker Exhaust CalCat Direct Fit Catalytic Converter
  • W
    Walker Walker Exhaust Ultra EPA 53569 Direct Fit Catalytic Converter
    Walker Walker Exhaust Ultra EPA 53569 Direct Fit Catalytic Converter
  • F
    Flowmaster 2230125 Universal Catalytic Converter
    Flowmaster 2230125 Universal Catalytic Converter
  • W
    Walker Ultra EPA 93239 Universal Catalytic Converter
    Walker Ultra EPA 93239 Universal Catalytic Converter
  • A
    aFe Power Direct Fit Catalytic Converter
    aFe Power Direct Fit Catalytic Converter
Component Type
Catalytic Converter
Length
17.88 in. (overall)
Outlet Diameter
2.38 in.
Body Length
17.0000 INH (depth), 17.875 (overall length)
Weight
8 lbs
Standards Compliance
EPA compliant
Sensor Ports
Yes
Catalyst Type
Ceramic
Substrate Material
Ceramic
Hardware Included
Yes (where needed)
Mounting Type
Direct Fit
Flange Type
2 Bolt Welded Flange
Gasket Material
Gasket
Inlet Type
Single
Mount Type
Direct Fit
Outlet Type
Single
Fits Vehicle
CarsSource