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TURBOCHARGER

TURBOCHARGER — 1994–1998 DODGE RAM 5.9L CUMMINS (12-VALVE, P7100)

From quick-spooling HX35/HX40 drop-ins to S300/S400 singles and compound twin kits, CPP Diesel curates turbo hardware and supporting parts that fit the 1994–1998 Ram 2500/3500. Build safe, repeatable boost for towing, street, or competition.

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Featured 94–98 Picks

Why Buy from CPP Diesel

  • Second-Gen Fitment: Hardware curated around 12-valve packaging, downpipe routing, and charge-pipe sizes.
  • Pro Brands + CPP Hardware: BorgWarner, BD, ATS, Banks, aFe—plus CPP lines, drains, and install parts.
  • Expert Support: Turbo sizing, wastegate control, oiling, and boot/clamp selection to keep leaks away.
  • Fast Shipping: Popular turbos and accessories ship quickly from U.S. warehouses.

Complete the system with intercoolers & boost tubes, intake horns/manifolds, and exhaust upgrades.

Helpful Notes

  • Goal-based sizing: HX35/HX40 or small S300 for towing/street; larger S300 or S400 for higher HP; compounds for wide torque with low EGT.
  • Oil supply/return: Always verify feed pressure and use a high-flow -12AN drain on S300/S400 to prevent oil backup.
  • Boost control: Fresh actuators and adjustable wastegates stabilize boost and reduce creep on HX35 setups.
  • Heat management: Turbo blankets reduce under-hood temps and can improve transient response.
  • Pressure test: After install, pressure-test charge piping to 20–30 psi and re-torque clamps post heat-cycle.

Frequently Asked Questions

What’s the best turbo path for a towing-focused 12-valve?

Stay conservative: a healthy HX35/HX40 drop-in or a small S300 keeps spool fast and EGTs in check. Add an adjustable wastegate and heat control for stability.

When should I choose compounds?

If you want low EGTs at load and headroom for higher horsepower—kits like the BD Super B Twins or Crazy Carl’s S300 2/3 deliver broad power with strong drivability.

Do S300/S400 installs need special oil drains?

Yes—use a -12AN drain kit or compatible OEM drain tube to prevent oil pooling and smoking.

Will a new actuator help my stock HX35 hold boost?

Often yes. Options include the aFe 46-60118 and Banks BigHead 24328; for fine tuning, add the BD 1047150 kit.

Which supporting parts should I refresh during a turbo swap?

Replace the oil feed and drain, inspect boots/clamps, and consider a turbo blanket for heat control.