Product Description
The BorgWarner 174430 S300GX is the proven, stock-location drop-in upgrade for 1994–2002 5.9L Cummins trucks. Featuring an S357 compressor, 65mm turbine, and a 14cm² T3 wastegated housing with HX40-style outlet, this unit delivers fast spool, cooler EGTs, and reliable towing/street performance — supporting ~400 wheel horsepower with proper supporting mods.
Fitment
- Dodge Ram 2500/3500 with 5.9L Cummins (1994–2002, 12V & 24V)
- Manifold flange: T3 (wastegated)
- Outlet: HX40-style downpipe typically required
Cross-Reference & Related BorgWarner Options (CPP Diesel)
Planning more airflow or future compounds? Compare genuine BorgWarner options on our site:
- BORGWARNER 177280 S300SX3 – S360/68, 0.88 A/R, T4
- BORGWARNER 177283 S300SX3 – S363/68, .88 A/R, T4
- BORGWARNER 177275 S300SX3 – S366/74, 0.91 A/R, T4
- BORGWARNER 177211 S300SX3 EXHAUST HOUSING – 0.88 A/R, T4
Helpful Notes
- Verify oil feed/return and charge connections during install.
- If replacing an HX35W, plan on an HX40-style downpipe.
- Typical support to ~400 whp with intake, exhaust, tuning, and fueling upgrades.
FAQ
Will the S300GX bolt to my factory manifold?
Yes. It uses a T3 wastegated housing that bolts to the OEM T3 manifold on 1994–2002 5.9L Cummins. The outlet is HX40-style, so plan the correct downpipe.
How much power can 174430 support?
With proper fueling and airflow mods, customers commonly target up to ~400 wheel horsepower while maintaining great street/tow manners.
Is this journal-bearing or ball-bearing?
Journal-bearing AirWerks center section with a heavy-duty thrust system for durability.
Is it emissions legal?
Not CARB-exempt. For off-road/competition use where applicable. Always check local regulations.
Specifications for BORG WARNER 174430
| Attribute | Value |
|---|---|
| Turbo Series | AirWerks S300GX (S300G upgrade) |
| Compressor | ~57.1 mm inducer (S357) |
| Turbine / Housing | 65 mm wheel, 14cm² T3 (≈0.80 A/R), HX40-style outlet |
| Center Section | Journal-bearing with heavy-duty thrust system |
| GTIN | 0840232719192 |
| UPC | 840232719192 |
| Cross Reference | See related BorgWarner S300SX3 turbos and housings linked above |
| E-codes | No CARB EO (not emissions-legal for highway use in CA) |
| Shipping Info | Typically qualifies for Free Shipping from CPP Diesel |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
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Fantastic turbo
If you’re not sure if you should pull the trigger on this do so! I don’t regret it at all! I get 12psi of boost even before 2k rpm and it flows very well. I have it 4 stars just for the fact it took me a bit to install and I racked my knuckles on it haha
