Part Number: CAT320‑937N Type: Mechanical fuel injector (not electronic, not common rail) Fuel Type: Diesel Applications:
Caterpillar 320 excavators fitted with Mitsubishi diesel engines
Used in older generation CAT equipment before CR systems were introduced Function:
Receives pressurized fuel directly from the mechanical injection pump
Atomizes fuel into the combustion chamber at the correct timing
Maintains consistent spray pattern for efficient combustion
The CAT320‑937N is a mechanical diesel injector used in Mitsubishi‑powered Caterpillar 320 series engines. Unlike modern common rail (CR) injectors, this is a traditional mechanical unit designed for heavy‑duty construction equipment.