1. Catalytic Converters Parts
  2. sku: 3561579720281781
  3. GM 25203845

GM 25203845 Catalytic Converter

fits year: 2016–2021.

25203845 Gm Genuine Catalytic Converter

( Brand: Gm ), ( Part Type: Converter ), ( Manufacturer Part Number: 25203845 ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Chevrolet ), ( Year: 2016 2017 2018 2019 2020 2021 ), ( Parts Included: Only Part Reference 1 On The Diagram Is Included ), ( Replaces Part Number: 12667331, 19420232 )

Review GM Genuine Catalytic Converter fits 2016–2021

The GM Part Number 25203845 is a catalytic converter engine component designed for select GM vehicles. This crucial emission control device converts harmful exhaust gases into less toxic forms before they are released into the environment.

This catalytic converter is a three-way converter, which means it reduces nitrogen oxides (NOx), carbon monoxide (CO), and unburnt hydrocarbons (HC) in the vehicle's exhaust stream. The converter's primary function is to maintain the engine's efficiency while adhering to stringent environmental regulations.

The catalytic converter's core component is its catalytic material, typically made of precious metals like platinum, palladium, and rhodium. These metals promote chemical reactions that convert harmful gases into less harmful ones. The converter's design includes a honeycomb structure, which maximizes the surface area of the catalytic material for optimal gas contact and efficient conversion.

The GM 25203845 catalytic converter is designed to fit specific GM applications and is manufactured to meet OEM (Original Equipment Manufacturer) standards for quality and performance. The converter's dimensions are approximately 19 inches long, 3 inches in diameter, and it weighs around 15 pounds.

When replacing a catalytic converter, it is important to consider factors such as the vehicle's make, model, and year to ensure the correct part is installed. Installing the incorrect catalytic converter can lead to various issues, including poor performance, reduced fuel efficiency, and potential damage to the vehicle's exhaust system.

In summary, the GM Part Number 25203845 is a crucial emission control component designed to reduce exhaust gases in select GM vehicles. This catalytic converter is a three-way converter that uses precious metals to promote chemical reactions that convert harmful gases into less toxic forms. It is manufactured to meet OEM standards and is designed for specific GM applications. Proper installation is essential for optimal performance and adherence to environmental regulations.

Buying a GM Part Number 25203845 catalytic converter comes with several pros and cons that every potential buyer should consider before making a purchase.

Pros:

1. OEM Quality: This catalytic converter is a genuine GM part, ensuring it fits perfectly and functions as intended in a GM vehicle.

2. Reduced Emissions: The catalytic converter is designed to reduce harmful emissions from the exhaust system, making it an essential component for protecting the environment and meeting emissions standards.

3. Improved Performance: A new catalytic converter can help improve engine performance by ensuring optimum exhaust flow and reducing backpressure.

4. Longer Lifespan: A high-quality catalytic converter can last longer than aftermarket alternatives, reducing the need for frequent replacements.

Cons:

1. Cost: Original equipment manufacturer (OEM) catalytic converters can be more expensive than aftermarket alternatives.

2. Availability: GM OEM catalytic converters may not be readily available from local auto parts stores, requiring online purchases or visits to dealerships.

3. Complexity: Catalytic converters contain precious metals, making them more complex and expensive to manufacture compared to other exhaust components.

Conclusion:

The decision to buy a GM Part Number 25203845 catalytic converter depends on individual circumstances. Those who prioritize OEM quality, longer lifespan, and improved performance may find the investment worthwhile. However, those who are budget-conscious or have easy access to aftermarket alternatives may prefer to consider those options instead.

Recommendation:

If you value OEM quality and are willing to pay a premium for it, a GM OEM catalytic converter like the 25203845 is an excellent choice. However, if cost is a concern, you may want to explore aftermarket alternatives that offer similar functionality at a lower price point. Ultimately, make an informed decision based on your specific needs, budget, and preferences.

part # 25203845 prices

  • $1381.37-$1717.99

specifications catalyticonvo:

  • for years: 2016-2021
  • brand: Gm
  • part type: Converter
  • manufacturer part number: 25203845
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • fitment type: Direct Replacement
  • make: Chevrolet
  • year: 2016 2017 2018 2019 2020 2021
  • parts included: Only Part Reference 1 On The Diagram Is Included
  • replaces part number: 12667331, 19420232

returns catalyticonvo:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days

general catalyticonvo:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters

seller catalyticonvo:

  • rating: 0.0%
  • # reviews: 0

shipping catalyticonvo:

  • transit: 3-9 Days
  • class: Standard, Expedited, One-day
  • service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver
  • cost: $0.00
  • type: Fixed
  • carrier: UPS

payments catalyticonvo:

  • other
  • credit card: Diners-club
  • wallet: Google-pay

offer catalyticonvo:

  • availability: In Stock
  • started: April 29, 2025
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
for years: 2016-2021, part type: converter, genuine oem: yes, manufacturer warranty: 1 year, fitment type: direct replacement, year: 2016 2017 2018 2019 2020 2021, parts included: only part reference 1 on the diagram is included, replaces part number: 12667331, 19420232,
manufacturer: chevrolet, category: auto parts > car truck parts accessories > exhaust emission systems > catalytic converters, sku: 3561579720281781,

Gm 25203845 Is Similar To:

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5 offers $1381.37–$1717.99 USD
  • Offer #1: $1717.99 price + free delivery = $1717.99* total. Manufacturer Warranty. Genuine GM Catalytic Converter.FREE SHIPPING
  • Offer #2: $1381.37 price + $24.64 delivery = $1406.01* total. Despite what the images or illustrations may show, all parts are sold individually.+$24.64 shipping
  • Offer #3: $1399.03 price + $20.03 delivery = $1419.06* total. Parts and prices listed on our site are based off GM pricing.+$20.03 shipping
  • Offer #4: $1450.70 price + $25.93 delivery = $1476.63* total.+$25.93 shipping
  • Offer #5: $1428.98 price + free delivery = $1428.98* total.FREE SHIPPING