Turbocharger for Cummins Truck Bus Delta Alpha Plus with M11 Engine 1999-2009

Turbocharger for Cummins Truck and Bus

This turbocharger is a replacement forced-induction unit built for Cummins M11 engines in truck and bus applications, using exhaust gas energy to raise boost and restore power.

Overview

This turbocharger compresses intake air to increase charge density on Cummins M11 engines in truck and bus use. It is a direct-fit replacement for a worn or failed unit, helping recover lost power and efficiency. Ideal for fleet operators and owner-operators running Delta, Alpha, or Alpha Plus applications from 1999 to 2009.

Built For Performance

• Exhaust-driven turbine spools quickly to build usable boost at low engine speed
• Compressor housing engineered for the airflow demands of the Cummins M11
• Balanced rotating assembly reduces vibration and extends service life
• Sealed bearing housing holds oil pressure for reliable lubrication
• Cast housings resist heat cycling under sustained load

Fits These Machines

• for Cummins M11 engines in truck applications
• for Cummins M11 engines in bus applications
• for Delta, Alpha, and Alpha Plus M11 applications 1999-2009

On-The-Job Use

• Over-the-road trucking with the Cummins M11
• Transit and coach bus duty
• Fleet maintenance and turbo replacement
• Restoring boost after a failed or oil-starved turbo

Specs At A Glance

Good To Know

Q: What causes a turbo to fail? A: Oil starvation, contaminated oil, and foreign debris are common causes of turbo failure. Check the oil feed and return lines and clean the intake path before installing a replacement.

Q: Should the oil lines be replaced with the turbo? A: Replacing the oil feed and drain lines is strongly recommended on any turbo swap to protect the new unit. Prime the turbo with clean oil before the first start.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.