SKU: 37051815589

High-Efficiency Three Way Catalytic Converter for Gasoline Vehicles with Euro 3 4 5 6 standards Applicable to a variety of gasoline models Long axis diameter 125mm

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Description

High-Efficiency Three Way Catalytic Converter for Gasoline Vehicles with Euro 3 4 5 6 standards Applicable to a variety of gasoline models Long axis diameter 125mmHigh Efficiency Three Way Catalytic Converter for Gasoline Vehicles Optimize Exhaust Performance, Reduce Emissions Product Attributes 1. Product name: Ceramic catalytic core for gasoline vehicles 2. Size: diameter: 125mm, height as picture 3. Cpsi: 400 600cpsi 4. Material: ceramic 5. Product delivery includes: 1pcs ceramic catalyst + 1pcs insulation cotton NoteDue to increased emissions standards, these items are not certified for sale in California,

High-Efficiency Three Way Catalytic Converter for Gasoline Vehicles - Optimize Exhaust Performance, Reduce Emissions

Product Attributes

1. Product name: Ceramic catalytic core for gasoline vehicles

2. Size: diameter: 125mm, height as picture

3. Cpsi: 400/600cpsi

4. Material: ceramic

5. Product delivery includes: 1pcs ceramic catalyst + 1pcs insulation cotton

Note:Due to increased emissions standards, these items are not certified for sale in California, New York, Maine and Colorado.If your vehicle is registered in California, New York, Maine or Colorado , these items can not work on your vehicle. Please check your registration states before you buy.

Purchasing notice

1. If you need a large batch, please contact our customer service

2. Powerful merchants, support customization, need to contact us

3. Allow us to have an error of ±1mm,It will not affect normal us

4.Please replace the catalyst of the original size and do not modify it

5.Friend of modified cars, it is recommended to contact us separately, you need to provide relevant data such as modified horsepower, only accurate data can be more suitable for your products

If you don't know how to choose the size, or need other sizes, please contact us

If you don't know how to choose the size, or need other sizes, please contact us

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How Catalysts Work

Core chemical equations:

1.  2CO + O₂ → 2CO₂

2.  2C₃H₆ + 9O₂ → 6CO₂ + 6H₂O

3.  2NO + 2CO → N₂ + 2CO₂

Essential conditions for efficient operation

1.  Temperature requirements:

Ignition temperature: About 300°C is required to start the reaction.

The vehicle shortens the warm-up time through a close-coupled design (close to the engine).

2.  Fuel quality:

Leaded fuel will cause the catalyst to "poison" and fail, and unleaded gasoline must be used.

3.  Engine health:

Misfires, burning oil and other problems will accelerate the clogging or sintering of the catalyst

When do you need a catalytic converter?

  1.  Increased fuel consumption : The three-way catalytic converter is damaged , which
    directly causes high fuel consumption and reduced power.
  2. The exhaust gas is not up to standard : Noise, polluting the environment, annualinspection can not pass, if it is a car with a trip computer (ECU), damage will cause the oxygensensor to fail, may lead to fuel supply failure.
  3. The engine shake fault light is on : lf the failure of the three-way catalytic convertercauses the exhaust emissions to exceed the standard, the engine control system with OBD willlight up the emission fault light.
  4. Decreased power : The common failure of the three-way catalytic converter is blockageand functional failure, if the blockage will cause poor exhaust and lead to insufficient power.
  5. Poor exhaust and odor : Acungent, smelly odor can be smelled during idle andacceleration, and exh aust gas analysis will find that the Danyang compound (NOx) seriouslyexceeds the standard, and it should be cleaned up and repaired in time.

How to choose a catalyst

Model Purchase according to the emission standard of the vehicle model to be installed (Euro3/4/5/6). The purchase selection standard can be increased, but not lowered.
Size recommendations The ratio of engine displacement to catalyst liters is 1.5:1 (Note that if there is an original catalyst size, please choose the original size and do not reduce the catalyst size to save costs)
Function Please select the catalyst according to the purpose of using the catalyst (to avoid purchasing errors)
Cpsi 400/600cpsi,The catalytic effect of 600cpsi is higher than that of 400cpsi
Insulation cotton Its main function is to improve the installation gap and heat insulation function. (Usually 5mm thickness is the best. If the catalyst diameter is smaller, you can choose thicker insulation cotton to supplement it.)

Application scenario diagram

Options Product Group Links Installation display
Ceramic core Link
Ceramic core + shell Link
Ceramic core + shell + caliber Link

Real feedback

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37051815589

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H. Simon
Los Angeles, US
★★★★★ 5
Great Sheets!
Size: Twin, Color: Oatmeal
Super soft, wash up beautifully, seem well made — very happy! It’s very hard to find 100% cotton t-shirt type sheets and these are really lovely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
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Chris
Phoenix, US
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026
A
Verified Purchase
Aimee H
Alexandria, US
★★★★★ 5
I love these! Great quality
Color: Brown, Lens Width: 37 Millimeters
I love these! Perfect glasses!!! Absolutely gorgeous!!!
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Reviewed in the United States on January 10, 2026
A
Verified Purchase
Angela Z.
Natrona Heights, US
★★★★★ 5
My second pair! ❤️
Color: Brown, Lens Width: 37 Millimeters, Color: Brown, Lens Width: 37 Millimeters
If I could give these glasses ten stars, I would! In fact I just ordered a second pair. I’ve been an Amazon customer for years and this is by far the best deal I’ve ever had. These are legit, well made Harley Davidson sunglasses with the Harley tag attached. They are worth WAY more than the $13 that I paid. They came in a hard shell Harley Davidson case! Last year I bought the same case for my husband’s glasses and the case alone was $14.99! Don’t hesitate to buy these! I was concerned about the size but figured I could return them. The size is perfect and comparable to glasses you’d find anywhere.
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Reviewed in the United States on November 29, 2025
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Diane R
San Leandro, US
★★★★★ 5
Very nice glasses
Color: Brown, Lens Width: 37 Millimeters
These sunglasses are the best glasses I have ever owned. They came with a really nice case. Nice looking, fit very nicely and reasonably priced. I would have gotten a couple more pairs but they sold out. I highly recommend these glasses.
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Reviewed in the United States on December 5, 2025

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