CUMMINS 3923178 GENUINE COMPRESSOR ELBOW - OEM HX35/HX40/S300 FOR 1994-2002 5.9L CUMMINS

The Cummins 3923178 compressor outlet elbow is an OEM replacement for HX35, HX40, and S300 turbochargers used on 1994-2002 Dodge Ram 5.9L Cummins diesel engines. This elbow connects the turbo compressor housing to the intercooler piping, ensuring proper boost flow and sealing.

Over time, compressor elbows can crack, warp, or leak under boost pressure. Replacing it with a genuine Cummins elbow restores reliable airflow and prevents boost loss.

Features & Benefits

• OEM Fit: Designed to match Cummins HX35, HX40, and S300 turbos.
• Durable Construction: Built to handle high boost pressures.
• Restores Airflow: Maintains boost pressure efficiency for towing and performance applications.

Cross Reference Part Numbers

• Cummins 3923178
• Holset HX35/HX40/S300 compatible elbow
• Replaces aftermarket part numbers: 3593251, 3599996

Frequently Asked Questions

Will this elbow fit both HX35 and HX40 turbos?

Yes, the 3923178 elbow is designed to fit HX35, HX40, and S300 turbo compressor outlets.

Does this elbow include the clamp or gasket?

No, clamps and gaskets are sold separately. We recommend replacing them at the same time for a proper seal.

Can I use this with aftermarket intercooler piping?

Yes, as long as the piping matches the OEM outlet size. Many performance kits still rely on the OEM-style elbow.

Related Turbocharger Components

• 1994-1998 Cummins 5.9L Turbochargers - OEM and performance HX35/HX40 upgrades.
• 1998.5-2002 Cummins 5.9L Turbochargers - VP44 applications with HX35/S300 turbos.
• Cummins Turbo Gaskets & Clamps - Ensure a leak-free seal with your new elbow.
• Cummins Intercooler & Piping Kits - For maximum airflow efficiency.