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Cummins 3804811 is the complete HX80 turbocharger with compressor and turbine housings and centre cartridge. It is used on Cummins K19 engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as Cummins 3594131, Cummins 2882094, Cummins 3767935 and Cummins 4033439.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Turbocharger |
| Replaces | Cummins 3804811 |
| Turbo model | HX80 |
| Cross references | Cummins 3594131, Cummins 2882094, Cummins 3767935, Cummins 4033439 |
| Fits | Cummins K19, KTA19 and QSK19 engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841480 |
| Country of Manufacture | China |
Cummins machines
Check the part number on your old unit before ordering.
| Cummins Part No.(SPM Part No.) | Fits |
|---|---|
| 3804811(SPM-HEP-4490) | Cummins K19, KTA19 and QSK19 engines |
| 3594131(SPM-HEP-4490) | Cummins K19, KTA19 and QSK19 engines |
| 2882094(SPM-HEP-4490) | Cummins K19, KTA19 and QSK19 engines |
| 3767935(SPM-HEP-4490) | Cummins K19, KTA19 and QSK19 engines |
| 4033439(SPM-HEP-4490) | Cummins K19, KTA19 and QSK19 engines |
What it does
Exhaust gas spins the turbine, which drives the compressor wheel on the same shaft and pushes more air into the engine. More air lets the engine burn more fuel cleanly, giving the rated power.
Where it is used
Made for the Cummins K19, KTA19 and QSK19 engines. The full list is in the tables above.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (3 aftermarket sellers) | USD 609.00 to 807.82 | 30 Oct 2026 |
| SINOCMP | USD 799.00 | 30 Oct 2026 |
| FridayParts | USD 848.38 | 30 Oct 2026 |
| Spare Part Mart | USD 502.42 | Today |
Our price of USD 502.42 is 18% to 41% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the Cummins K19, and 2 more listed under compatible equipment. Check the old turbocharger is marked 3804811 or one of the cross references, because makers change parts between serial ranges.
On the Cummins K19, often as long as the engine, 8,000 hours or more, when the oil and air filters are kept on schedule. Most turbos fail early from oil or dirt problems, not age.
Blue or black smoke, a whistle or siren noise, loss of power, oil in the intake or exhaust, or the shaft rubbing the housing.
Pour clean engine oil into the oil inlet and turn the shaft by hand, then crank the engine with the fuel cut until oil pressure shows. Let it idle for a minute before load.
A little radial play is normal on journal bearing turbos. Wheels touching the housing, or any noticeable end float, are not.
No. It is an aftermarket turbocharger made to replace the Cummins 3804811. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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