Cummins QSB3.9 Parts
42 parts fit the Cummins QSB3.9. Every part is listed with its Cummins part number so you can match it to your parts manual. Choose genuine or quality aftermarket parts — we quote within 24 hours and ship worldwide.
- 295050-2490 — Fuel Injector (engine)
- 3976797 — Flexible Hose (engine)
- 5402949 — Water Pump (engine)
- 3933373 — Fuel Injection Pump (engine)
- 5296281 — Fuel Drain Tube (engine)
- 3103702 — V Ribbed Belt (engine)
- 3918686 — HX30W Turbo Air intake elbow Transfer Pipe (engine)
- 3905113 — Engine Heater Cable (engine)
- 3966448 — Complete Cylinder Head (engine)
- 5256423 — Thermostat (engine)
- 4994848 — 6 Pieces Grommet Seal (engine)
- 4938416 — Oil Filler Tube (engine)
- 3897596 — 6 PCS Fuel Injector (engine)
- 3910130 — Fan Pilot Spacer (engine)
- 3968563 — Oil Seal (engine)
- 3902236 — Fuel Pump Gear (engine)
- 3939961 — Mechanical Excavator Engine Driven Gear Pump (engine)
- 4931171 — Male Connector (engine)
- 3909374 — Oil Suction Tube (engine)
- 3901635 — Exhaust Manifold (engine)
- 3958009 — Dipstick (engine)
- 4943894 — Air Intake Connection (engine)
- DS3937556 — Belt Tensioner - 4Bt3.9 / 6Bt5.9 / Isb3.9 / Isb4.5 / Qsb3.9 (engine)
- DS3802770 — Turbocharger Kit - 6Bt5.9 / Isb3.9 / Isb4.5 / Qsb3.9 / Qsb4.5 (engine)
- DS3918428 — Pressure Regulator Plunger - 4B3.9 / 6B5.9 / B5.9 / Isb3.9 / Isb5.9G / Qsb3.9 (engine)
- DS3906698 — Rectangular Ring Seal - 4Bt3.9 / 6Bt5.9 / Isb3.9 / Isb4.5 / Qsb3.9 (engine)
- DS3906697 — Rectangular Ring Seal - 4Bt3.9 / 6Bt5.9 / Isb3.9 / Isb4.5 / Qsb3.9 (engine)
- DS3914389 — Fuel Pump Gasket - 4Bt3.9 / 6Bt5.9 / Isb3.9 / Isb4.5 / Qsb3.9 (engine)
- 3978313 — Flywheel Ring Gear (engine)
- 3939696 — 6 Pieces Fuel Injector (construction)
- 3911581 — V-Ribbed Belt (construction)
- 3936138 — Hydraulic Pump Adapter (engine)
- 5698454 — Pressure Temperature Sensor (engine)
- 3990517 — ECM Electronic Control Module (engine)
- 3968196 — Cylinder Head Assembly (engine)
- 3965404 — Fuel Injection Pump (engine)
- 3937426 — Flywheel Bell Housing (engine)
- 3931627 — Flywheel Housing (engine)
- 3920795 — Oil Tube (engine)
- 3911924 — Fan Hub (engine)