This is the BorgWarner 178046, a new S300G wastegated turbocharger for the Caterpillar C7 truck engine. Catalogs give its full model code as S300AG072 and rate it for C7 engines from 250 to 330 hp. It replaces Caterpillar 10R-3280 and 228-3228. It is a genuine BorgWarner turbo, not a rebuild and not a copy.

Three catalogs list the same family of numbers for this turbo: Caterpillar 10R-1103, 223-9083 and the 228-3223 and 269-2915 series shown below, and earlier BorgWarner tag numbers in the 173696 and 175475 series. BorgWarner’s remanufactured version of the same turbo is 478046. Heavy truck turbos are matched by the number on the turbo tag, so read the tag on your old unit or send us the engine serial number before you order. Check for shaft play and oil in the charge pipes before you condemn the turbo, and find out why the old one failed so the new one does not go the same way.

Specifications

Fits / Applications

• Caterpillar C7 truck engine, 250 to 330 hp
• Replaces Caterpillar 10R-3280 and 228-3228
• Catalogs also list it for Caterpillar 10R-1103, 223-9083, 228-3223 to 228-3227, 228-3229, 228-3231, 228-3233, 228-3234 and 269-2915 to 269-2926
• Replaces earlier BorgWarner tag numbers 173517, 173696 to 173702, 173704 to 173706 and 175475 to 175486
• Not listed for Caterpillar 228-3230, 269-2927 or 10R-3281. Catalogs file those under BorgWarner 178047.
• Match by the number on your turbo tag or by engine serial number

Prime the turbo with clean engine oil before first start, fit new oil feed and drain gaskets, and clean or replace the oil feed line. Check the air intake and charge air cooler for oil or debris from the old turbo.

Part Numbers & Cross Reference

BorgWarner 178046  ·  BorgWarner remanufactured version 478046  ·  Caterpillar 10R-3280  ·  Caterpillar 228-3228  ·  Caterpillar, other numbers catalogs list 10R-1103, 223-9083, 228-3223, 228-3224, 228-3225, 228-3226, 228-3227, 228-3229, 228-3231, 228-3233, 228-3234, 269-2915, 269-2916, 269-2917, 269-2918, 269-2919, 269-2920, 269-2921, 269-2922, 269-2923, 269-2924, 269-2925, 269-2926  ·  BorgWarner, earlier tag numbers 173517, 173696, 173697, 173698, 173699, 173700, 173701, 173702, 173704, 173705, 173706, 175475, 175476, 175477, 175478, 175479, 175480, 175481, 175482, 175483, 175484, 175485, 175486

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

Will the 178046 fit my Caterpillar C7?

It is the S300G turbo for the C7 at 250 to 330 hp and it replaces Caterpillar 10R-3280 and 228-3228. The C7 used many turbo numbers, so call 530-668-0818 with your turbo tag number or engine serial number and we will confirm it.

What numbers does the 178046 replace?

Caterpillar 10R-3280 and 228-3228, and catalogs also list it for 10R-1103, 223-9083 and the 228-3223 and 269-2915 series shown on this page. It also replaces earlier BorgWarner tag numbers such as 175479 and 175480.

My tag says 228-3230. Is this the right turbo?

Catalogs do not list 228-3230 for the 178046. They file 228-3230, 269-2927 and 10R-3281 under BorgWarner 178047. Send us your tag number and engine serial number and we will match it.

Is the 178046 new or remanufactured?

It is a new BorgWarner turbocharger, not a rebuild. The remanufactured version of the same turbo is BorgWarner 478046.

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.