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Description
Diesel Oxidation Catalyst (DOC) | High-Efficiency Emission Control & Durable Performance for Heavy-Duty Engines Diameter 170mmProduct 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
4.5 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Great package of toys
Color: Curated Dog Puzzle Toys
We have a new rescue dog and she eats too fast so we got these to help slow her meals down, and to give her something to do during downtime. The balls are so fun for her, the puzzle one is cool but she knows how to get the food out now so it doesn't take her long to finish it. The lick pads are nice but I have to place them on a cookie sheet so it doesn't get our hardwood floors oily with peanut butter. I think thos whole bundle is a great value. Side note: do not leave your dog alone with these toys because they will chew them up easily. I take them away once the treats and food are gone.
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Reviewed in the United States on May 8, 2026
★★★★★ 3
Not made to last..
Color: All-Around Dog Puzzle Toys
I got this kit to help entertain our litter of Golden Retrievers as they got bigger, waiting to go to their forever homes. The quality was pretty good. It worked great when they were small, but as they got bigger and stronger, they were able to chew up and destroy the balls, especially the hollow ones. The balls that hold the treats in between the layers help up better, but after 3-4 months I took them away because they started showing teeth marks. The lick pads have lasted, we still have them 6 months later, and the puzzle thing was ok until about a month ago when the puppy we kept learned to pop the sliders off instead of push them to the side. All in all, I’d say it is ok to entertain very small puppies or dogs that don’t chew a lot, but definitely under supervision. Definitely not for aggressive chewers or larger dogs, as the balls are all very small.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
Fun set
Color: All-Around Dog Puzzle Toys
Super cute and dog feeding kit with lots of options at a great price. The balls are a little on the flimsy side, but for the price the set is hard to beat. I have a 12 pound dachshund who is a fast eater, but also loves a good challenge. While the toy is not difficult for her to figure out (she is a little to smart for her own good) it does at least slow her down enough that she chews her food some. The sliders on the feeder move around easily which make it easy to clean and refill, but also make it a lot easier for her to get to the food. It is probably comparable to a level one difficulty for anyone who has tried the Outward Hound food toy games.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Very sturdy products esp for my big chewers
Color: All-Around Dog Puzzle Toys, Color: All-Around Dog Puzzle Toys
My dogs loved these, loved the lick pads as they have suctions, we personally use it for when we are bathing since my dogs hate baths, we just stick it onto the wall. The puzzles were fun which kept them entertained, the balls that had we were able to put treats in them, my dog loved it more as a ball as they are very ball driven. I bought this weeks ago and it’s extremely sturdy. Also easy to clean.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Doggie approved!
Color: All-Around Dog Puzzle Toys, Color: All-Around Dog Puzzle Toys
⭐️⭐️⭐️⭐️⭐️
**Perfect Mental Workout for My German Shepherd!**
This 9 Pack All-Around Dog Puzzle Toy Set has been an absolute game-changer for my German Shepherd. As a highly intelligent and energetic breed, he needs more than just physical exercise, and these puzzles provide the mental stimulation he craves. Each toy offers a different challenge level, keeping him engaged and focused instead of bored or restless.
I love the variety in the set—it makes it easy to rotate the puzzles so he doesn’t lose interest. The toys are sturdy and well-designed, holding up well to my German Shepherd’s strength while still being easy to clean. They also help slow down treat time and encourage problem-solving, which is great for his overall behavior and enrichment.
If you have a smart, high-energy dog like a German Shepherd, this puzzle set is a must-have. It keeps him mentally sharp, entertained, and happily challenged every day! 🐕🧠⭐
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Reviewed in the United States on December 24, 2025
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