No Products in the Cart
Cummins 3104766 is the GTA5523BS type wastegated turbocharger with the actuator and hose fitted, a twin entry four bolt exhaust inlet flange and a V band turbine outlet. It is used on Cummins QSX15, ISX15 and X15 engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
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 3104766 |
| Turbo model | GTA5523BS |
| Engine | Cummins QSX15, ISX15, X15 |
| Wastegate | Yes, actuator and hose fitted |
| Fits | the Cummins QSX15, ISX15 and X15 diesel engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841480 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| Cummins Part No.(SPM Part No.) | Fits |
|---|---|
| 3104766(SPM-HEP-4919) | the Cummins QSX15, ISX15 and X15 diesel 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 QSX15, ISX15 and X15 diesel 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 (5 aftermarket sellers) | USD 731.99 to 772.00 | 1 Nov 2026 |
| SINOCMP | USD 799.00 | 1 Nov 2026 |
| FridayParts | USD 828.17 | 1 Nov 2026 |
| Buy Machinery | USD 951.30 | 1 Nov 2026 |
| Fab Heavy | USD 1,094.24 | 1 Nov 2026 |
| Spare Part Mart | USD 585.59 | Today |
Our price of USD 585.59 is 20% to 46% 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 QSX15, and 2 more listed under compatible equipment. Check the old turbocharger is marked 3104766 or one of the cross references, because makers change parts between serial ranges.
On the Cummins QSX15, 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.
Most failures come from oil starvation, dirty oil, or something passing through the wheels. Find the cause first: a blocked oil feed or dirty air path will kill the new turbocharger too.
No. It is an aftermarket turbocharger made to replace the Cummins 3104766. 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.
Join and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that. Turn points into a discount whenever you like.
Opens the Marty Mates panel. No password: you enter your email, we send a code, and that is you in with your 200 points waiting. Joining signs you up to our emails and you can leave any time from the link in any of them. See our terms and conditions.
Member deals, specials before they go public, and easy ways to stack up points. Plus a nudge when a part you bought is due, so you are not caught out mid job.
You can leave any time from the link in any email we send. See our terms and conditions.
We will only bother you when it is worth it: a member deal, a specials drop, a way to earn points faster, or a heads up that a part you bought is due.
Join Marty Mates and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that.
No password: you enter your email, we send a code, and that is you in.
