SKU: 40027353112

5313770 Genuine Cummins DOC Diesel Oxygen Catalyst

Sale price$584.55 Regular price$649.50
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Description

5313770 Genuine Cummins DOC Diesel Oxygen CatalystPart details DESCRIPTION DOC Diesel Oxygen Catalyst CONDITION Used BRAND Cummins PART NUMBER 5313770 OTHER OEM PART NUMBERS THAT WILL WORK 2510787C91, 4353274NX, 4353274RX, , 5313770NX, 5313770RX, 4353274 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

Part details

DESCRIPTION DOC Diesel Oxygen Catalyst
CONDITION Used
BRAND Cummins
PART NUMBER 5313770
OTHER OEM PART NUMBERS THAT WILL WORK 2510787C91, 4353274NX, 4353274RX, , 5313770NX, 5313770RX, 4353274

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
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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: 40027353112

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4.0 ★★★★★
Based on 6 reviews
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Product Reviews
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Verified Purchase
Tawanda N Walker
Los Angeles, US
★★★★★ 5
Good
Size: 40 Count (Pack of 1)
Refreshing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
V
Verified Purchase
V. Ayer
Lexington, US
★★★★★ 3
Very strong
Size: 40 Count (Pack of 1)
I like their other products. The flavor is too strong for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
Carlos
Carnegie, US
★★★★★ 5
very good
Size: 160 Count (Pack of 1)
Very good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
K
Verified Purchase
Karen M
Louisville, US
★★★★★ 5
Good to use every night...I do.
If you suffer from dry mouth during the night, these are the perfect solution. I had tried rinses - they don't last. Sprays - they don't last. lozenges - don't last. Other tablets, only last a few hours. I can get about 8 hours relief with these. Contrary to other reviews, you do not suck on them like a lozenge...they won't last at all if you do it that way. Read the directions. They "adhere" to your back molars...don't drink or eat after putting them in...as both will either dislodge or reduce the effectiveness. However, when I don't use these, my mouth is miserable and so dry. These provide enough moisture throughout the night. The flavors aren't too bad. I've used the mint (not may favorite because I'm not a fan of mint flavor), orange and berry. I wish they had other flavors (cinnamon, licorice), but till then, I'll use these probably forever.
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Reviewed in the United States on January 2, 2026
B
Verified Purchase
Brenda P
San Leandro, US
★★★★★ 5
Really helpful for dry mouth.
Scent Name: Berry, Size: 100 Count
These really work. I wear a CPAP and my mouth was so dry I was waking up with my tongue stuck to the roof of my mouth. They stick well so no worry of swallowing it during the night. I like the berry flavor.
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Reviewed in the United States on April 25, 2026

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