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Get the Best Priced Oldsmobile Alero Catalytic Converter

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Get affordable Oldsmobile Alero catalytic converters you deserve. In just 10 minutes, you could save up to 80% with PartsGeek. Save time and dollars on your next Alero exhaust converters purchase. Over 12 Years of saving people money and providing great customer service. Check our low-cost options today. The average cost for catalytic converter replacement is between $156.43 and $1,046.98

Oldsmobile Alero Catalytic Converter Reviews
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Shop Oldsmobile Alero Replacement Catalytic Converter

In the search for ruggedness and performance, vehicle buyers can be content with a quality car engineered by Oldsmobile. By enabling your motorist to use gasoline more completely, performance parts raise power ratings while decreasing excess gas usage. Drivers who thrill over optimized car or trucks know that there's nothing more vital than having the most durable replacement parts for your car. Adequately operating Oldsmobile Alero Catalytic Converters are crucial to be able to pass EPA rules for automobile functioning. The Catalytic Converter is a component which lowers the amount of harmful emissions from your vehicle's exhaust, allowing your car to meet the requirements for your state emissions test. Catalytic Converters help clean the air by catalyzing hazardous pollutants into ordinary water and CO2, using a chemical catalyst, often platinum, then venting the cleaned exhaust through the tailpipe. Located within your exhaust system of a car, the Catalytic Converter acts to reduce the entire harmful pollutants of your car by catalyzing a chemical reaction in your vehicle's emissions. Though not easily broken, the converter occasionally needs repair, often when it is damaged by road debris.

We stock these Catalytic Converter brands for the Oldsmobile Alero: BosalEastern CatalyticMagnaflowWalkerCatco

Select your Alero year

Review Fitment Notes
Showing 20 of 231 Results
Bosal Catalytic Converter - for 2003 Oldsmobile Alero 3.4L V6 - 079-5136 Click to Enlarge
5 Stars
Bosal 079-5136
Catalytic Converter
Loading Reviews...
Part Number: 079-5136
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Material: Stainless Steel
Type: Federal / EPA Compliant
Type: Direct-Fit
Finish: Stainless Steel
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$326.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Oldsmobile Alero 3.4L V6
Bosal Catalytic Converter - for 1999 Oldsmobile Alero 2.4L 4 Cyl - 079-5152 Click to Enlarge
5 Stars
Bosal 079-5152
Catalytic Converter
Loading Reviews...
Part Number: 079-5152
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$335.43
(1) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1999 Oldsmobile Alero 2.4L 4 Cyl
Eastern Catalytic Catalytic Converter - for 2003 Oldsmobile Alero 3.4L V6 - 99774 Click to Enlarge
5 Stars
Eastern Catalytic 99774
Catalytic Converter
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Part Number: 99774
Brand: Eastern Catalytic
Notes: UNIVERSAL -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Semi-Universal Converter - ECO GM
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$224.43
(9) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Oldsmobile Alero 3.4L V6
Eastern Catalytic Catalytic Converter - for 2002 Oldsmobile Alero 3.4L V6 - 50335 Click to Enlarge
5 Stars
Eastern Catalytic 50335
Catalytic Converter
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Part Number: 50335
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$299.43
(18) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Oldsmobile Alero 3.4L V6
Eastern Catalytic Catalytic Converter - for 2000 Oldsmobile Alero 2.4L 4 Cyl - 50289 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 50289
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$254.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
2000 Oldsmobile Alero 2.4L 4 Cyl
Eastern Catalytic Catalytic Converter - for 2001 Oldsmobile Alero 3.4L V6 - 50335 Click to Enlarge
5 Stars
Eastern Catalytic 50335
Catalytic Converter
Loading Reviews...
Part Number: 50335
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$299.43
(18) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2001 Oldsmobile Alero 3.4L V6
Bosal Catalytic Converter - for 2002 Oldsmobile Alero 3.4L V6 - 079-5136 Click to Enlarge
5 Stars
Bosal 079-5136
Catalytic Converter
Loading Reviews...
Part Number: 079-5136
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Material: Stainless Steel
Type: Federal / EPA Compliant
Type: Direct-Fit
Finish: Stainless Steel
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$326.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Oldsmobile Alero 3.4L V6
Bosal Catalytic Converter - for 1999 Oldsmobile Alero 3.4L V6 - 079-5136 Click to Enlarge
5 Stars
Bosal 079-5136
Catalytic Converter
Loading Reviews...
Part Number: 079-5136
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Material: Stainless Steel
Type: Federal / EPA Compliant
Type: Direct-Fit
Finish: Stainless Steel
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$326.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1999 Oldsmobile Alero 3.4L V6
Eastern Catalytic Catalytic Converter - for 2000 Oldsmobile Alero 2.4L 4 Cyl - 82724 Click to Enlarge
4.9 Stars
Eastern Catalytic 82724
Catalytic Converter
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Part Number: 82724
Brand: Eastern Catalytic
Notes: UNIVERSAL -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Semi-Universal Converter - ECO II
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$156.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Oldsmobile Alero 2.4L 4 Cyl
Eastern Catalytic Catalytic Converter - for 1999 Oldsmobile Alero 2.4L 4 Cyl - 82724 Click to Enlarge
4.9 Stars
Eastern Catalytic 82724
Catalytic Converter
Loading Reviews...
Part Number: 82724
Brand: Eastern Catalytic
Notes: UNIVERSAL -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Semi-Universal Converter - ECO II
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$156.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
1999 Oldsmobile Alero 2.4L 4 Cyl
Bosal Catalytic Converter - for 2001 Oldsmobile Alero 2.4L 4 Cyl - 079-5152 Click to Enlarge
5 Stars
Bosal 079-5152
Catalytic Converter
Loading Reviews...
Part Number: 079-5152
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$335.43
(1) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2001 Oldsmobile Alero 2.4L 4 Cyl
Eastern Catalytic Catalytic Converter - for 1999 Oldsmobile Alero 2.4L 4 Cyl - 50289 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 50289
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$254.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
1999 Oldsmobile Alero 2.4L 4 Cyl
Bosal Catalytic Converter - for 2000 Oldsmobile Alero 2.4L 4 Cyl - 079-5152 Click to Enlarge
5 Stars
Bosal 079-5152
Catalytic Converter
Loading Reviews...
Part Number: 079-5152
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$335.43
(1) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Oldsmobile Alero 2.4L 4 Cyl
Eastern Catalytic Catalytic Converter - for 2001 Oldsmobile Alero 2.4L 4 Cyl - 50289 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 50289
Brand: Eastern Catalytic
Notes: DIRECT FIT -- Undercar; Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
  • Federal / EPA Direct-fit Converter Assembly
Condition: New
Shipping Options: Ground
5 Year / 50,000 Mile Eastern Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$254.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
2001 Oldsmobile Alero 2.4L 4 Cyl
Bosal Catalytic Converter - for 2000 Oldsmobile Alero 3.4L V6 - 079-5136 Click to Enlarge
5 Stars
Bosal 079-5136
Catalytic Converter
Loading Reviews...
Part Number: 079-5136
Brand: Bosal
Notes: BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter
Condition: New
Material: Stainless Steel
Type: Federal / EPA Compliant
Type: Direct-Fit
Finish: Stainless Steel
Body Material: Stainless Steel
Mounting Hardware Included: Yes
Shipping Options: Ground
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$326.43
(4) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Oldsmobile Alero 3.4L V6
Rear Magnaflow Catalytic Converter - for 2004 Oldsmobile Alero 2.2L 4 Cyl - 99204HM Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 99204HM
Brand: Magnaflow
Notes: Universal HM Grade Federal (Exc. CA) -- Cutting and Welding Required During Installation
Position: Rear
Condition: New
Body Material: Stainless Steel
Series: HM Grade
Material: Stainless Steel
Heat Shield Included: Yes
Shipping Options: Free Ground Shipping
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$176.00
with FREE Shipping
(28) In Stock
This Part Fits:
Catalog: F
Vehicle Engine
2004 Oldsmobile Alero 2.2L 4 Cyl
Bosal Catalytic Converter - for 2004 Oldsmobile Alero 3.4L V6 - W0133-1925215 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: W0133-1925215
Brand: Bosal
Notes: EPA Compliant - (48-State & Canada) EPA Tier 0 & Tier 1 emission use.
Detailed Notes: Not legal for sale or use in California and New York
Condition: New
Shipping Options: Ground Shipping
5 Year / 25,000 Mile Bosal Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
List Price:
$447.18
Our Price: $353.58
(6) In Stock
This Part Fits:
Catalog: A
Vehicle Engine
2004 Oldsmobile Alero 3.4L V6
Walker Catalytic Converter - for 2004 Oldsmobile Alero 3.4L V6 - 93253 Click to Enlarge
5 Stars
Walker 93253
Catalytic Converter
Loading Reviews...
Part Number: 93253
Brand: Walker
Notes: EPA -- Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Ultra Universal Type; Modifications and/or Additional Parts May Be Required for Installation
  • EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE -- Backed by Walker's 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details.
Condition: New
Body Material: Stainless Steel
California Air Resources Board (CARB) Certified: No
Substrate Material: Ceramic
Air Tube: No
Shipping Options: Ground
5 Year / 50,000 Mile Walker Limited Warranty
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$217.08
(2) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
2004 Oldsmobile Alero 3.4L V6
Magnaflow Catalytic Converter - for 2004 Oldsmobile Alero 3.4L V6 - 5461205 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 5461205
Brand: Magnaflow
Notes: 2.25in. Universal California OBDII Catalytic Converter -- Certification Level : LEV2 LEV; OE Spec; Cutting and Welding Required During Installation; CARB Executive Order D-193-140; Engine Family Number 4GMXV03.8042
Condition: New
Material: Stainless Steel
Series: California
Shipping Options: Ground
*** Legal in California, Colorado, New York, and Maine ***
$1,046.98
(1) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2004 Oldsmobile Alero 3.4L V6
Catco Catalytic Converter - for 2004 Oldsmobile Alero 3.4L V6 - 4863 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 4863
Brand: Catco
Notes: Catalytic Converter -- Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
Condition: New
Shipping Options: Ground
{We currently do not ship this catalytic converter to California, Colorado, New York, or Maine}
$184.98
(9) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2004 Oldsmobile Alero 3.4L V6

Related Exhaust Parts

Catalytic Converters available for the following Oldsmobile Alero years: 2004, 2003, 2002, 2001, 2000, 1999, 04, 03, 02, 01, 00, 99. This part is also sometimes called Oldsmobile Alero Exhaust Converters. We stock catalytic converter parts for most Oldsmobile models including Bravada, Cutlass Supreme, 88, Silhouette, Intrigue, Cutlass Ciera, Aurora, Delta 88, 98, Cutlass, Toronado, Custom Cruiser, LSS, Achieva, Cutlass Cruiser, Cutlass Salon, Cutlass Calais, Omega, Starfire, Regency, Firenza and Calais.

Oldsmobile Alero Catalytic Converter Reviews
5 of 5
Verified Customer
2/4/14 07:14 PM - USA

this catalytic converter was priced right and received in a timely manor.i would certainly order again if the situation presented itself . - catalytic converter

- 2003 Oldsmobile Alero Catalytic Converter
5 of 5
Verified Customer
2/15/14 11:24 AM - USA

Excellent service. Received the part quickly and it bolted right up. I've found my online parts store. - Doug R.

- 2000 Oldsmobile Alero Catalytic Converter
5 of 5
Verified Customer
12/5/15 10:22 AM - USA

It arrived on time and my car is working perfectly. Item was just what it was supposed to be. Very PROFESSIONAL. - Lisa

- 2001 Oldsmobile Alero Catalytic Converter
5 of 5
Verified Customer
9/21/16 04:04 PM - USA

I am satisfy with the service the part did arrive before the time given. - jean

- 2001 Oldsmobile Alero Catalytic Converter