Pay in installments of $124.88 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
21212405 Genuine Mack DOC Diesel Oxidation CatalystPart details DESCRIPTION DOC Diesel Oxidation Catalyst CONDITION Used BRAND Mack PART NUMBER 21212405 OTHER OEM PART NUMBERS THAT WILL WORK 207 065 0003, 207 065 0004, 2070650003, 2070650004, 21212407, 21756505, 43006029, 43006209, 82017, 82018, C0075 ID, C0075ID, C075 ID, C075ID, C097 ID, C097ID, R43006029, R43006209, 21756506 Function of this part The aftertreatment system treats exhaust gases after they leave the engine using components such as the
Part details
| DESCRIPTION | DOC Diesel Oxidation Catalyst |
| CONDITION | Used |
| BRAND | Mack |
| PART NUMBER | 21212405 |
| OTHER OEM PART NUMBERS THAT WILL WORK | 207-065-0003, 207-065-0004, 2070650003, 2070650004, 21212407, 21756505, 43006029, 43006209, 82017, 82018, C0075-ID, C0075ID, C075-ID, C075ID, C097-ID, C097ID, R43006029, R43006209, 21756506 |
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
Mack is known for building tough trucks and components for construction, vocational, and highway fleets that need reliable performance day after day.
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:
- 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