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5pcs 3033740 3033742 Check Valve & Threaded Plug Replacement for Cummins ISX QSX 15L N14 NT855 Diesel Engine Fuel System

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$79.54 cheaper than the new price!!

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New  $132.56
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Product details

Management number 219384971 Release Date 2026/05/03 List Price $53.02 Model Number 219384971
Category

Direct OEM Replacement – Precision-engineered fuel system kit includes a fuel check valve (3033740) and threaded plug (3033742), directly replacing OEM numbers for Cummins diesel engines.Maintains Stable Fuel Pressure – The 3033740 check valve prevents fuel backflow and ensures consistent fuel supply for reliable engine operation. Compatible with HPI fuel systems on EPA07 15-liter ISX/QSX engines.Seals Threaded Openings Securely – The 3033742 threaded plug features a 3/8-24 thread and includes an O-ring seal (3034412) for leak-proof sealing of ports in the engine block or fuel system during maintenance.Extensive Engine Compatibility – Designed to fit a wide range of Cummins engines, including ISX, QSX 15L, NT855, N14, N14 CELECT, N14 CELECT Plus, G14, G855, and more.Professional Installation Recommended – Direct-fit for engine repair and fuel system maintenance. Professional mechanic installation is recommended. Please verify your engine model before purchasing.

  • Direct OEM Replacement – Precision-engineered fuel system kit includes a fuel check valve (3033740) and threaded plug (3033742), directly replacing OEM numbers for Cummins diesel engines.
  • Maintains Stable Fuel Pressure – The 3033740 check valve prevents fuel backflow and ensures consistent fuel supply for reliable engine operation. Compatible with HPI fuel systems on EPA07 15-liter ISX/QSX engines.
  • Seals Threaded Openings Securely – The 3033742 threaded plug features a 3/8-24 thread and includes an O-ring seal (3034412) for leak-proof sealing of ports in the engine block or fuel system during maintenance.
  • Extensive Engine Compatibility – Designed to fit a wide range of Cummins engines, including ISX, QSX 15L, NT855, N14, N14 CELECT, N14 CELECT Plus, G14, G855, and more.
  • Professional Installation Recommended – Direct-fit for engine repair and fuel system maintenance. Professional mechanic installation is recommended. Please verify your engine model before purchasing.
Brand Name Generic
Unit Count 1.0 Count
Manufacturer Generic
Model Number 3033740 3033742
Item Dimensions 1 x 1 x 1 inches
Included Components Check Valve*5

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