OEM Diesel Particulate Filter for 2020-2022 Chevrolet & GMC
Only 1 left in stock
Price today
$529.95
− $330 core refund
YOUR NET COST
$199.95
after returning your old part
✓ Prepaid core return label
30-DayReturns
1-yearWarranty
100%Money-Back
Condition: Excellent (A) — like new, minimal to no wear
Professionally inspected and tested.
Product Notes Read before buying
This is a used part. It is a particle filter for vehicles equipped with the 6.6L engine.
This Diesel Particulate Filter (DPF) is for models with the 6.6L Duramax Diesel engine. It specifically fits Crew Cab models with the long bed (8 ft box). There are different filters for other cab and bed configurations; please verify your vehicle's specifications before ordering.
This Diesel Particulate Filter (DPF) is for models with the 6.6L Duramax Diesel engine. It specifically fits Crew Cab models with the long bed (8 ft box). There are different filters for other cab and bed configurations; please verify your vehicle's specifications before ordering.
✓ EPA RE-CERTIFIED CATALYTIC CONVERTER
What is a recertified catalytic converter? A converter that has been performance tested and passes EPA guidelines for certified converters. Each unit includes a permanent tag with its part number, recertification facility, and date of recertification.
- 1-Year Warranty (parts only, no labor)
- OEM bolt-on design (not weld-in)
- Donor vehicle VIN available on request
- Return your old cat to receive $330 refund
Why Buy Used OEM Parts?
Checked & Tested
We check and test every used part before we sell it. It may show some wear, but it works and is ready to install.
Original Equipment
This is the same part your vehicle came with from the factory. It fits and works just like the original — because it is one.
Works Like New
A few marks on the outside don't change what's inside. The part works the way it should.
Big Savings
Pay 50–80% less than buying new. Same factory part, much lower price.
Not sure? Ask Wrenchy — Your Parts Assistant.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
Chevrolet
2 models(tapclick to hide)
Silverado 2500 HD
2020-2022
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| High Country | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LTZ | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LTZ | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Custom | Crew Cab Pickup | 2021 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Custom | Extended Cab Pickup | 2021 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
Silverado 3500 HD
2020-2022
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| High Country | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Cab & Chassis | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LT | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| LTZ | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Cab & Chassis | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| WT | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
GMC
2 models(tapclick to hide)
Sierra 2500 HD
2020-2022
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| AT4 | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Crew Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Extended Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Standard Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Denali | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLT | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Crew Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Extended Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Standard Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
Sierra 3500 HD
2020-2022
(tapclick to hide)
Swipe left/right to see more info
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| AT4 | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Cab & Chassis | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Crew Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Extended Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Base | Standard Cab Pickup | 2020 - 2021 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Denali | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | 4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Cab & Chassis | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Extended Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLE | Standard Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| SLT | Crew Cab Pickup | 2020 - 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Cab & Chassis | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Crew Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Extended Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
| Pro | Standard Cab Pickup | 2022 | V8 6.6L DIESEL Turbo | RWD/4WD | Automatic | engine_size: include 6.6L; fuel_type: include DIESEL; bed_length: include Long Bed |
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.
Policies, in plain English.
Shipping & Handling
- Standard shipping: 3-7 business days via UPS Ground
- Parts are carefully packaged to prevent damage during transit
1-Year Warranty
This EPA re-certified catalytic converter includes a 1-year warranty (parts only, no labor) from the date of purchase.
- If your converter fails within 1 year, we will send a replacement
- Warranty covers parts only — labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Note: Warranty is for replacement only. Return window for refunds is 30 days.
Returns (30 Days)
We accept returns within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: We cover return shipping as part of our 100% money-back guarantee
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
If your part arrives damaged:
- Stop immediately — do not install the part
- Keep all original packaging and boxes
- Take clear photos of the damage and packaging
- Contact us within 48 hours of delivery
We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.
Order Cancellation
Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.
Expert Guides
2017-2024 Silverado & Sierra HD Duramax SCR Catalyst: P20EE Codes, Limp Mode, and Replacement Guide
Diagnose and replace the Selective Catalytic Reduction (SCR) converter on your 6.6L Duramax diesel and understand the critical differences between OEM, aftermarket, and used parts.
Read Full Guide →Related Trouble Codes (OBD-II)
2 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
P0421
Warm-Up Catalyst Causes & Fixes
2020-2020 Chevrolet SILVERADO 3500
P0422
Catalyst Efficiency Causes & Fixes
2020-2024 Gmc SIERRA 2500
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
Miscellaneous Information
OEM Part Numbers:
GM: 84341179, 84612887, 86534453, 86786606
Fits Years: 2020 2021 2022
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Full 1-year warranty on every re-certified catalytic converter. If it fails, we replace or refund — no hassle.
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