2147 / 3128 Conversion Friendly Exhaust Manifold

Conversion-friendly exhaust manifold for the Cummins® engine, shown with a stock turbo.

Exhaust manifold with gaskets, bolts and L-bracket

Manifold installed with stock turbo

Mount the turbo

  1. Using the turbo fastener kit, install the short stud and the long stud in the positions shown.
    Short stud and long stud positions on the turbo flange
  2. Rotate the turbo outlet housing so it points straight forward.
  3. Make sure the turbo drain port faces downward so oil returns properly.
    Turbo outlet pointing forward, drain port facing down

Install the heater tube L-bracket

The small L-bracket retains the steel portion of the heater hoses and reuses the OEM tube clamps.

  1. Attach the mounting bracket to the top bolt of the cylinder 3 exhaust port.
    L-bracket on the cylinder 3 exhaust port top bolt
  2. Secure the steel heater tubes with the OEM tube clamps.
    L-bracket retaining the steel heater tubes

Probe ports

Two threaded ports are provided for an EGT probe and a back pressure probe, if used.

Two threaded probe ports on the manifold