SKU: 36505443579

5418478RX Genuine Cummins Inlet Catalyst

Sale price$778.05 Regular price$864.50
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Description

5418478RX Genuine Cummins Inlet CatalystPart details DESCRIPTION Inlet Catalyst CONDITION Used BRAND Cummins PART NUMBER 5418478RX OTHER OEM PART NUMBERS THAT WILL WORK 5418478, , 5418478NX, 5418478PX, 2116695X, 5418478CUM, 4394601, 4395106, 4395106RX, 4394601RX , 5418478CUM Function of this part The aftertreatment system treats exhaust gases after they leave the engine using components such as the DOC, DPF, and SCR catalyst. It controls soot and NOx emissions by trapping particulates and

Part details

DESCRIPTION Inlet Catalyst
CONDITION Used
BRAND Cummins
PART NUMBER 5418478RX
OTHER OEM PART NUMBERS THAT WILL WORK 5418478, , 5418478NX, 5418478PX, 2116695X, 5418478CUM, 4394601, 4395106, 4395106RX, 4394601RX , 5418478CUM

Function of this part

The aftertreatment system treats exhaust gases after they leave the engine using components such as the DOC, DPF, and SCR catalyst. It controls soot and NOx emissions by trapping particulates and converting harmful gases into less harmful compounds.

Why this part matters

These components are central to emissions compliance on modern diesel trucks. Problems in the aftertreatment system can cause frequent regens, power derates, and down-time until the fault is corrected.

About the brand

Cummins engine parts are trusted for reliable power in a variety of heavy-duty truck and equipment applications.

Fitment & usage

Used OEM parts are a smart choice for controlling repair costs while still using original-equipment components. Always match the OEM part number(s) listed to your existing part, and consult your service manual, dealer, or technician if you are unsure about fitment.

Note: Because this is a used component, normal signs of wear such as scratches, discoloration, or light surface corrosion may be present. Refer to the product photos and information on Second Truck Parts for the best representation of the part you will receive.

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: 36505443579

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4.4 ★★★★★
Based on 27 reviews
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Verified Purchase
Kenster
West Palm Beach, US
★★★★★ 5
Should have bought this years ago!!!
I live at the end of 25 minutes dirt road top of red Mountain, Co. On the 3rd flat in 2 weeks I ordered this kit instead of putting a spare on and driving to town 1 hour away. and knock on wood its has held going on 3 weeks. I jacked up the car, followed the instruction and wow easier then going to Big-O. Love it and told my Kids they need to get it also.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
D
Verified Purchase
David M. Silvestri
Lowell, US
★★★★★ 5
A Must-Have Emergency Kit for Every Vehicle, Especially ATVs!
I recently bought this 54PCS Flat Tire Repair Kit with Air Compressor, and I’m seriously impressed. It’s one of those products you hope you won’t need—but are SO glad to have when the time comes. I used it on my ATV after catching a sharp rock on the trail, and it saved the day. The plug worked perfectly, and the air compressor had my tire reinflated in just a few minutes. What I really love is how complete the kit is. From cars and motorcycles to trucks and tractors, it’s got everything you need to handle a flat. The tools are solid and durable, and the case keeps everything neatly organized. It’s compact enough to toss in the back of my truck or ATV storage box without taking up too much space. If you ride ATVs in remote areas like I do, this kit is a no-brainer. It gives you peace of mind and saves you from having to hike back to civilization. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2025
D
Verified Purchase
Dan R.
San Leandro, US
★★★★★ 5
Kept it in my trunk for months — used it once and it saved me
I’ve had this AUTOWN tire repair kit sitting in the trunk for several months as a “just in case” thing. I have only had to use it once, but the tools and compressor held up and it actually helped me get out of a bad spot where I didn’t have a spare tire available. Just to be clear, I wouldn’t call this a permanent fix. It’s more of an emergency repair to get you back on the road. In my case it did exactly that. Afterward, I went to a nearby tire shop and had the tire repaired the right way. Overall, I’m really glad I had it in the car. Just using it once has already paid for itself.
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Reviewed in the United States on March 29, 2026
D
Verified Purchase
Dan
Massapequa, US
★★★★★ 5
Thumbs up
Very good to have works great
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Reviewed in the United States on May 14, 2026
L
Verified Purchase
Lee
Massapequa, US
★★★★★ 5
This product work so well it will surpass your expectations it did mine
Size: 1-Pack (32 oz)
This product is well worth the price. I had a small branch puncture a hole through the sidewall of a tire on my 4 wheeler. The hole was at least 3/8” and was done by a tree limb so the edges were jagged. I followed instructions on the product yet the whole time I thought I was wasting my time and the product most likely. I was pleasantly surprised and wrong. It sealed as soon as re inflated the tire and hasn’t leaked down in over 6 months now. I was so impressed I put 2 packs in everything I drive on road and off road.
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Reviewed in the United States on May 21, 2026

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