SKU: 68268130456

4955421NX Genuine Cummins EGR Valve Kit

Sale price$258.75 Regular price$287.50
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Description

4955421NX Genuine Cummins EGR Valve KitPart details DESCRIPTION Egr Valve Kit For Cummins CONDITION Used BRAND Cummins PART NUMBER 4955421NX OTHER OEM PART NUMBERS THAT WILL WORK 3104875RX, 3104875, , 4090007, 4955421, 4089493NX, 4089787NX, 4089834, 4089787, 4089493, 4955421RX, 3103824, 4921905, 3103765, 3103361, 3102745 Function of this part The EGR (exhaust gas recirculation) system routes a controlled amount of exhaust gas back into the intake. This lowers combustion temperatures and

Part details

DESCRIPTION Egr Valve Kit For Cummins
CONDITION Used
BRAND Cummins 
PART NUMBER 4955421NX
OTHER OEM PART NUMBERS THAT WILL WORK 3104875RX, 3104875, , 4090007, 4955421, 4089493NX, 4089787NX, 4089834, 4089787, 4089493, 4955421RX, 3103824, 4921905, 3103765, 3103361, 3102745

Function of this part

The EGR (exhaust gas recirculation) system routes a controlled amount of exhaust gas back into the intake. This lowers combustion temperatures and helps reduce NOx emissions.

Why this part matters

Because EGR flow is monitored closely by the engine management system, issues with EGR valves or coolers quickly trigger fault codes and derates. Keeping the EGR system in good working order is key to reliability and emissions compliance.

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: 68268130456

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Amazon Customer
Draper, US
★★★★★ 5
Nice and a good price.
Fit our F250 Diesel well.
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Reviewed in the United States on November 10, 2025
R
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Rick
Boise, US
★★★★★ 5
Great fitment
Nice fitment
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Reviewed in the United States on December 15, 2025
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Lauren Drennan
Phoenix, US
★★★★★ 2
F250 cabin filter change
Too thick. Air flow decreased significantly which is terrible in the AZ heat!
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Reviewed in the United States on July 27, 2025
D
Verified Purchase
Dale
Alexandria, US
★★★★★ 5
Clean filtered air
Installed easy. works great. Clean filtered air.
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Reviewed in the United States on July 21, 2025
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Bobbi
Alexandria, US
★★★★★ 5
IMPRESSED!
Item Package Quantity: 1, Item Package Quantity: 1
I bought this for my Honda civic 2017 lx 1.5 and it is a perfect fit. I didn’t realize how important it is to change it. Let me tell you if you are thinking about buying this, it’s your sign not JUST because of health which is vital and first and foremost but the PRICE! At any oil change or auto shop they will charge no less than 50$ and I’ve seen higher. I will continue to buy this brand. I will update in my next 5,000 miles. 8.00$ or 50$+ and the quality is EXACTLY the same, your choice.
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Reviewed in the United States on April 3, 2026

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