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    • 4941701 Cummins Injector Fuel Supply Tube

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    cummins engine parts,4941701,Cummins Injector Fuel Supply Tube

    The Cummins Injector Fuel Supply Tube (Part No. 4941701) is an OEM-grade component designed to deliver precise, high-pressure diesel fuel from the injection pump to the injector body in a variety of Cummins diesel engines. Crafted from corrosion-resistant materials and engineered to Cummins’ strict specifications, this tube ensures optimal fuel atomization, engine performance, and longevity. Regular inspection and timely replacement of this tube can prevent fuel leaks, maintain proper injection timing, and avoid costly downtime—making Part 4941701 a critical item for diesel-powered trucks, generators, and industrial machinery.

    1. Product Overview

    1.1 Specifications

    • Part Number: 4941701

    • Manufacturer: Cummins®

    • Condition: OEM, genuine Cummins part

    • Dimensions: 16.00″ length × 0.50″ diameter (approx.)

    • Weight: 0.09 lbs

    • MSRP: $16.57 (street price may vary)

    1.2 Materials and Construction

    The fuel supply tube is fabricated from high-strength, corrosion-resistant alloy steel, and is precision-bent and heat-treated to withstand pressures up to 3,000 psi (typical for mechanical diesel injectors). OEM-grade fittings and ferrules guarantee a leak-free seal under extreme thermal cycles.

    2. Function and Benefits

    2.1 Role in Fuel Delivery

    The injector fuel supply tube provides the high-pressure pathway for diesel fuel between the injection pump’s outlet and each injector’s inlet port. Maintaining tube integrity is essential for:

    • Accurate Injection Timing: Consistent fuel pressure ensures each cylinder receives the correct fuel quantity at the right moment.

    • Optimized Atomization: Even pressure distribution improves combustion efficiency, power output, and emissions control.

    2.2 Advantages of Genuine Cummins Parts

    • Strict Quality Standards: Manufactured and tested to Cummins’ ISO/TS standards for dimensional accuracy and pressure tolerance.

    • Extended Service Life: Robust materials and coatings resist corrosion and fatigue, reducing replacement frequency.

    • Warranty Coverage: Genuine parts are backed by Cummins warranty and support programs, ensuring peace of mind for fleets and heavy-duty applications.

    3. Compatible Applications

    Part 4941701 fits a broad range of Cummins engine families commonly found in:

    • On-highway Trucks: ISX, ISM, and older N14 series

    • Off-road Equipment: Construction (QSB, QSC), agricultural (QSL), and mining engines

    • Power Generation Sets: Industrial generator sets using B and C series engines

    For exact fitment, always cross-reference the engine serial number with Cummins’ parts catalog or consult your parts specialist.

    4. Installation & Maintenance

    4.1 Installation Tips

    1. Clean Mating Surfaces: Remove any debris or old sealant from the injector and pump outlets.

    2. Use Proper Tools: Torque to 30 – 35 ft-lbs using a calibrated torque wrench to avoid overtightening and tube deformation.

    3. Inspect O-rings/Ferrules: Replace any sealing elements to ensure a leak-free connection.

    4.2 Maintenance Best Practices

    • Periodic Inspection: Check for hairline cracks, oil or fuel seepage around fittings every 10,000 miles or 250 hours of operation.

    • Replace on Signs of Wear: At the first sign of corrosion or micro-fractures, swap out the tube to prevent injector starvation or high-pressure leaks.

    • System Bleeding: After installation, bleed the fuel system to purge air pockets and confirm steady pressure delivery.

    5. Why Choose CinaAutoParts.com?

    • Competitive Pricing: Access genuine Cummins 4941701 tubes at wholesale rates starting from $13.83.

    • Fast Worldwide Shipping: Ships directly from our strategic warehouses to minimize lead times.

    • Expert Support: Our technical team assists with fitment queries, torque specs, and installation guidance.

    • Secure Transactions: SSL-encrypted checkout and buyer protection on every order.

    Ready to order? Visit our product page for Cummins Injector Fuel Supply Tube 4941701 and enjoy rapid fulfillment:
    🔗 Buy Now at Cina Auto Parts

    References

    1. Best cummins Injector Fuel Supply Tube 4941701 supplier wholesale

    2. Cummins® OEM Injector Fuel Supply Tube specifications – ModernGroup

    3. 4941701 Injector Fuel Supply Tube pricing and availability – Area Diesel Service

    4. Injector Fuel Supply Tube product listing

    5. Cummins Injector Tube applications overview

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