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Description
Universal DOC Catalytic Converter Exhaust Treatment Diesel Catalyst DOC with Low Backpressure Diameter 158mmProduct Introduction Product name Diesel Oxidation Catalyst Model DOC Catalyst Euro 5(Euro3 4 5) PT 10gr ft Euro 6 PT 20gr ft Cpsi 300 400 Customization Support Error 0. 1mm Quality High standard Package Neutral packaging Price includes 1 pcs DOC +1 pcs Insulation Materials Sellers Notes Checklist Important things 1 This product is suitable for highway diesel vehicles with good vehicle condition and normal exhaust temperature. 2 Usually PT 10gr ft PT
Product Introduction
| Product name | Diesel Oxidation Catalyst | Model | DOC Catalyst |
| Euro 5(Euro3/4/5) | PT/10gr ft³ | Euro 6 | PT/20gr ft³ |
| Cpsi | 300/400 | Customization | Support |
| Error | ±0.1mm | Quality | High standard |
| Package | Neutral packaging | Price includes |
1 pcs DOC +1 pcs Insulation Materials |
Sellers’ Notes Checklist
Important things |
|
|---|---|
|
1 |
• This product is suitable for highway diesel vehicles with good vehicle condition and normal exhaust temperature. |
|
2 |
• Usually PT/10gr ft³/PT/20gr ft³ corresponds to the original vehicle size of the emission standard, which is enough to achieve the corresponding emission effect. Since ours is a replacement product, not the original, there is a difference in precious metal content with the original DOC. If you mind this situation, don't pay. |
|
3 |
• If you have any requirements for PD, RH, Or there are higher requirements for precious metal content • Please contact us. |
|
4 |
• For non-road equipment, the engine exhaust temperature is relatively low, such as generators/mining equipment, etc. It needs to be judged based on factors such as working environment/power/exhaust temperature, please contact us. |
|
5 |
• We have super stock, PT/5gr ft³/PT/10gr ft³/PT/15gr ft³/PT/20gr ft³/PT/30gr ft³/PT/60gr ft³......Bulk purchase customers please contact us privately to apply for order discounts |
| Product link is the price of a single sample | For bulk purchases, please contact our staff | |
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Product Specifications
| Picture | Description and Specifications |
|---|---|
|
The Diesel Oxidation Catalyst (DOC) is a device installed inthe engine exhaust line to convert carbon monoxide (CO)and hydrocarbons (HC) in the enginèexhaust into harmlesswater (H20) and carbon dioxide (CO2) through oxidationreactions.
Formula: 2CO+O2--2CO2 CxHy+(x+4y)O2--xCO2+2yH2O |
Fast facts
1.Converts carbon monoxide (CO) into carbon dioxide (CO2) and water
2.Can eliminate muffler requirement
3.Harmful particulates are oxidised into harmless products
What are the strengths of our solution?
Our DOCs provide a simple solution for original equipment manufacturers (OEMs). They’re easy to install and maintain and don’t require any additional control from the machine operator. In many cases, the need for a muffler can be eliminated, and our DOCs can also allow for a wider ratings envelope. Concentrations of NO and NO2 can be optimised in the exhaust stream, and if your engine has SCR, this will make it more efficient and reduce diesel exhaust fluid (DEF) consumption requirements. Using a DOC also enables additional passive regeneration in DPF systems.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
...interesting ...
Format: Kindle
Impressive research - resulting in an interesting read.
Can tend towards overboard descriptions when a more concise format would be appreciated by the reader.
The formatting could be better with regards to headings and appropriate spacing.
Lots of detail to get through.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2022
★★★★★ 5
Sparta the Greek warrior city state
Format: Paperback
In ancient Greece there was no equal to the military skills of the army of Sparta. They started training young men at the age of seven with exercises that made their weapons an extension of their body. This let them weild weapons with more precision than their enemies. This is just one of the fun facts found in this book about Sparta. As with many nations which put their focus on the strength of the military forces Sparta was constantly at war. They were suspicious of the motives of other city states and often attacked before they could be attacked. We can learn much by learning of the Greeks and their relationships with each other, their alliance systems and their causes of wars. Comparing national alliance systems and causes of wars today with those of the Greeks we can learn many lessons. We can see things they could have done to prevent the carnage and and use it to our advantage. This book also gives a glimpse into the living conditions of Sparta. It explains the social structure and the government structure of Sparta. It tells of the role of women in the Spartan culture. Many times we use the term Spartan to describe a minimalist life style. This book describes the living conditions of the Spartans showing where that term originated. All of the above and much more is well described in this book about the ancient city of Sparta. As a former history teacher I highly recommended this book to everyone. This should be available to all. It is a must read
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2022
★★★★★ 5
Just Beautiful!!
Format: Paperback
absolutely phenomenal—an easy five-star read for me!
This story is rooted in redemption, survival, and forgiveness, and it delivers on every level. The emotional depth of the characters really stood out, especially as we follow a journey shaped by years of guilt, pain, and hard-earned growth. Nothing felt rushed or surface-level—every layer of the story was intentional and meaningful.
I especially loved how the author tied the theme of wildflowers into the narrative. It wasn’t just symbolic—it felt like a living, breathing part of the story, representing resilience and beauty rising from difficult circumstances. That connection made the story feel even more powerful and real.
The character development was beautifully done. You could feel the weight of their choices, their struggles, and ultimately their transformation. It’s one of those stories that stays with you after you turn the last page.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 4
Beautiful Writing, Slow Pace
Format: Kindle
After surviving a prison bus crash, Leigh escapes to start a new life. She eventually finds her way to a flower farm, where she falls in love, learns to trust, and is finally able to heal from her past.
It’s a beautiful and moving story overall. It was nice to watch how much Leigh grew throughout the book. It felt earned. She actually put in the work, even when it was hard. I think that's what makes the story feel so real and emotional.
The wildflower metaphor worked perfectly throughout the book. Yes, it's a bit cliché, but it was done well in this book. It didn't come across as lazy or simplistic.
As a flower lover, the setting was my favorite thing. The author’s descriptions were just beautiful. So much of it reads like poetry. You can tell how much thought she put into every single word.
Unfortunately, the pacing was too slow for me. At times, it felt like it was dragging on and even got repetitive. The book could have been shorter and had a greater impact.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
🌸🌼🌸🌼
Format: Kindle
Where the Wildflowers Grow and this book was such an emotional journey. What started as a survival story slowly turned into a story about healing, identity, forgiveness, and learning how to live again after trauma.
Leandra endured more pain than most people could imagine. Losing her family, spending five years in prison, and surviving the prison transport bus crash would have been enough to completely harden her. Instead, watching her reinvent herself as Leigh and slowly rediscover who she was outside of survival mode made this story feel deeply human and realistic.
I really loved the symbolism of the flower farm and how Jackson became a safe place for her without trying to “fix” her. Their relationship felt patient, healing, and genuine. The romance never overshadowed Leigh’s personal growth, which I appreciated. This book truly explored what it means to be loved properly while still carrying scars from your past.
What kept me invested the entire time was the tension hanging over everything. Even during the peaceful moments, you knew the secrets surrounding Leigh’s past would eventually surface. And when the truth finally came out, the consequences were emotional and impactful instead of feeling overly dramatic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
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