The 2021 Chevrolet Express Cargo has 25 automatic transmission parts with verified fitment on this page — 13 part types and 7 brands, covering both the 4.3L V6 and the 6.6L V8. Each part includes a manufacturer part number and application notes.
On the 2021 Chevrolet Express Cargo, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Transmission Fluid Additive (6 parts), Filter (4 parts) and Rebuild Kit (3 parts). The other 10 part types cover the remaining 12 parts.
The 2021 Chevrolet Express Cargo was sold with both the 4.3L V6 and the 6.6L V8. 15 parts fit every engine; the other 10 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Chevrolet Express Cargo automatic transmission parts are DORMAN (7 parts), LUBEGARD (6 parts) and PA CARGO (5 parts), plus 4 more brands. Quality grades include Banner Kit, Master Kit and Overhaul Kit.
2 parts on this 2021 Chevrolet Express Cargo page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including LUBEGARD 19610 (Transmission Fluid Additive) and LUBEGARD 60902 (Transmission Fluid Additive). Click any part number to see every vehicle that part fits.
Automatic Transmission Control Unit (TCU)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.6L V8 | SP609006 | 🇲🇽 MX | View on Amazon |
This table covers the control units that command automatic-transmission shifts.
One part is listed for the 2021 Chevrolet Express Cargo — DORMAN SP609006.
Components
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.6L V8 | 76742 | 🇲🇽 MX | Pump Vane | View on Amazon |
| SONNAX Fits: 6.6L V8 | 12474030K | 🇲🇽 MX | Pressure Switch Rebuild Kit | View on Amazon |
This table covers the related components grouped with this assembly.
2 Components parts for the 2021 Chevrolet Express Cargo come from SONNAX.
Listed part numbers: SONNAX 76742 and SONNAX 12474030K.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2021 Express Cargo engines | 138710 | 🇲🇽 MX | Internal filter | View on Amazon |
| VARIOUS MFR Fits: 4.3L V6 | PT99576 | 🇲🇽 MX | Standard | View on Amazon |
| VARIOUS MFR Fits: 4.3L V6 | PT99576X | 🇲🇽 MX | Select | View on Amazon |
| VARIOUS MFR Fits: 6.6L V8 | PT99791 | 🇲🇽 MX | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
4 Filter parts for the 2021 Chevrolet Express Cargo come from 2 brands — VARIOUS MFR and PA CARGO. 1 part fits every engine; the other 3 are engine-specific.
Listed part numbers: PA CARGO 138710, VARIOUS MFR PT99576 and VARIOUS MFR PT99576X, plus the other parts above.
Fluid Cooler Line / Hose Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.3L V6 | 800619 | 🇲🇽 MX | 9/16" x 18 ThreadRadiator Side | View on Amazon |
This table covers the harness connectors at the Fluid Cooler Line / Hose. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2021 Chevrolet Express Cargo — DORMAN 800619.
Fluid Cooler Line / Hose Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 4.3L V6 | SK66219 | 🇲🇽 MX | View on Amazon |
This table covers the seals at the Fluid Cooler Line / Hose. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2021 Chevrolet Express Cargo — SKP SK66219.
Fluid Cooler Line Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 Express Cargo engines | 14152 | 🇲🇽 MX | 18 MM Diameter | View on Amazon |
This table covers the Fluid Cooler Line clips.
This group shows a single part: DORMAN 14152.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.3L V6 | 265925 | 🇲🇽 MX | OE FIX | View on Amazon |
| DORMAN Fits: 6.6L V8 | 265973 | 🇲🇽 MX | OE FIX | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
DORMAN supplies both parts for the 2021 Chevrolet Express Cargo.
This group includes DORMAN 265925 and DORMAN 265973.
Fluid Pan Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 Express Cargo engines | 265003 | 🇲🇽 MX | Designed Specifically To Work with Dorman OE Solutions Transmission Oil Pans. Not For Replacement of Original Drain Plugs.Gasket Or Seal Included: YES | View on Amazon |
This table covers the Fluid Pan drain plugs.
One part is listed for the 2021 Chevrolet Express Cargo — DORMAN 265003.
Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2021 Express Cargo engines | B16650 | 🇲🇽 MX | Material: ACM (Polyacrylate) | View on Amazon |
This table covers the seals at the Input Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2021 Chevrolet Express Cargo — ELRING B16650.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2021 Express Cargo engines | DK13800S | 🇲🇽 MX | Banner Kit | View on Amazon |
Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2021 Express Cargo engines | DK13800 | 🇲🇽 MX | Master Kit | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2021 Express Cargo engines | K138900 | 🇲🇽 MX | Overhaul Kit | View on Amazon |
This table covers the rebuild kits for this assembly.
PA CARGO supplies the 3 Rebuild Kit parts for the 2021 Chevrolet Express Cargo. All of them fit every engine offered in the 2021 Express Cargo.
In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, PA CARGO supplies 1 part: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK13800S.
The Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) section lists 1 option from PA CARGO — grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. PA CARGO DK13800 is listed in this group.
In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, PA CARGO supplies 1 part: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO K138900.
Listed part numbers: PA CARGO DK13800S, PA CARGO DK13800 and PA CARGO K138900.
Shift Linkage Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2021 Express Cargo engines | 14104 | 🇲🇽 MX | 3 Piece Kit | View on Amazon |
This table covers the Shift Linkage bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
One part is listed for the 2021 Chevrolet Express Cargo — DORMAN 14104.
Torque Converter Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2021 Express Cargo engines | 138151 | 🇲🇽 MX | Housing SealTourque Converter Seal | View on Amazon |
This table covers the seals at the Torque Converter Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2021 Chevrolet Express Cargo — PA CARGO 138151.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: all 2021 Express Cargo engines | 19610 | 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: all 2021 Express Cargo engines | 60902 | 🇲🇽 MX | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Express Cargo engines | 19689 | 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Express Cargo engines | 63010 | 🇲🇽 MX | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Express Cargo engines | 63016 | 🇲🇽 MX | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: all 2021 Express Cargo engines | 63032 | 🇲🇽 MX | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
6 Transmission Fluid Additive parts for the 2021 Chevrolet Express Cargo come from LUBEGARD. The "Popular" part is LUBEGARD 19610. Every part fits both the 4.3L V6 and the 6.6L V8.
Part numbers include LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, among others listed above.
Buying Automatic Transmission Parts for a 2021 Chevrolet Express Cargo
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Some automatic transmission parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid Additive and Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 2021 Chevrolet Express Cargo?
Our catalog currently lists 25 automatic transmission parts for the 2021 Chevrolet Express Cargo across 13 subcategories and 7 brands, covering both the 4.3L V6 and the 6.6L V8. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2021 Chevrolet Express Cargo engines?
Some do. 15 parts fit every engine; the other 10 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of automatic transmission problems on a 2021 Chevrolet Express Cargo?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Chevrolet Express Cargo was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Chevrolet Express Cargo?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Chevrolet Express Cargo
Automatic Transmission Parts for Other Chevrolet Express Cargo Years
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