Caterpillar C15 ACERT Twin Turbo GTA5518B Low Pressure Turbocharger | Alliant Power AP90033 Remanufactured
This is the Alliant Power AP90033, a turbocharger remanufactured by Alliant Power. It is the Garrett GTA5518B low pressure stage, the larger of the two turbos, on the twin-turbo Caterpillar C15 ACERT 15.2L. It replaces Cat 10R-1888, 228-9942, 229-8824, 231-6616, 232-1805, 232-1811 and 291-3997, and Garrett 741155-0001, 741155-0002, 741155-0003 and 741155-0004 turbos. A refundable core applies.
The C15 ACERT runs two turbos in series, and they are different parts. This listing is the low pressure turbo only. The high pressure turbo is the smaller GTA4294BS, which we list new as the Garrett 741154-5011S. When one stage fails it often sends oil or debris into the other, so inspect both. Heavy truck turbos are matched by the number on the turbo tag, not by engine model alone. For the single-turbo 3406E and C15 we list the BorgWarner 177148 and the Garrett 704604-5011S.
Confirm Fitment Before You Order
The C15 ACERT has a low pressure and a high pressure turbo, and they are different parts with different Cat numbers. This is the low pressure one, Garrett 741155-0001 to 741155-0004. The Garrett 760524 series is a different C15 ACERT turbo: if your tag shows 760524, call first. Send us the Garrett or Cat number from the tag, or the engine serial number, before you order. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | AP90033 |
| Brand | Alliant Power |
| Condition | Remanufactured |
| Warranty | Alliant Power 24-month, unlimited-mileage warranty. |
| Type | Turbocharger, remanufactured by Alliant Power |
| Turbo model | Garrett GTA5518B |
| Stage | Low pressure (twin-turbo system) |
| Engine | Caterpillar C15 ACERT 15.2L, twin turbo |
| Garrett tag numbers | 741155-0001, 741155-0002, 741155-0003, 741155-0004 |
| High pressure partner | Garrett GTA4294BS, 741154-5011S |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 83 lb |
Fits / Applications
- Caterpillar C15 ACERT 15.2L with twin turbos, low pressure position
- Replaces Cat 10R-1888, 228-9942, 229-8824, 231-6616, 232-1805, 232-1811 and 291-3997
- Replaces Garrett 741155-0001, 741155-0002, 741155-0003 and 741155-0004
- For the single-turbo 3406E and C15, see the BorgWarner 177148 and the Garrett 704604-5011S
- Match by the number on your turbo tag
Check the high pressure turbo, the charge air cooler and the pipe between the two turbos for oil and metal before you fit this one. Check the oil feed and drain lines, change the engine oil and filter, and pre-oil the turbo through the feed port before the first start. Keep your old turbo complete for the core return.
Part Numbers & Cross Reference
Caterpillar 10R-1888 · Caterpillar 228-9942 · Caterpillar 229-8824 · Caterpillar 231-6616 · Caterpillar 232-1805 · Caterpillar 232-1811 · Caterpillar 291-3997 · Garrett new version 741155-5003S · Garrett new version 741155-5004S · Garrett remanufactured version 741155-9003S · Garrett tag number 741155-0001 · Garrett tag number 741155-0002 · Garrett tag number 741155-0003 · Garrett tag number 741155-0004
Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.
Frequently Asked Questions
Is the AP90033 the low pressure or the high pressure turbo on a C15 ACERT?
It is the low pressure turbo, the larger Garrett GTA5518B. The high pressure turbo is the GTA4294BS, Garrett 741154-5011S.
What numbers does the AP90033 replace?
Cat 10R-1888, 228-9942, 229-8824, 231-6616, 232-1805, 232-1811 and 291-3997, and Garrett 741155-0001, 741155-0002, 741155-0003 and 741155-0004, including the Garrett service numbers 741155-5003S, 741155-5004S and 741155-9003S.
Is it new or remanufactured, and is there a core?
It is remanufactured by Alliant Power. A refundable core applies, so keep your old turbo complete to send back.
How do I confirm it is the right turbo?
Read the Garrett number off the tag on the larger turbo. If it reads 741155-0001, 741155-0002, 741155-0003 or 741155-0004, this is the replacement. If it reads 760524, or you cannot read it, call 530-668-0818 with the engine serial number.
Why Buy From Valley Fuel Injection
We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. A refundable core deposit is added at checkout and refunded in full when we receive your rebuildable core. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax and the refundable core charge are additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.
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