Cummins HDI Exhaust Elbows & Risers (Aftermarket)

Aftermarket exhaust elbows and mixing elbows for Cummins HDI marine diesel engines, used in sterndrive and inboard installations.

An overheating engine gets blamed on the raw water pump or impeller first, but a partially blocked exhaust elbow restricts water flow just as easily — worth checking before you replace pump parts unnecessarily.