1. Car/Truck Engine Valves Deals
  2. sku: 10919167888363793
  3. BLK PRO 3923477

BLK PRO 3923477 Bypass Valve 3925581 6CT 3934410 3919015 3920326 3923476

fits model: Cummins.

3923477 Blk Pro 3925581 Bypass Valve For Cummins 6c 6ct 3934410 3919015 3920326 3923476

( Brand: Blk Pro ), ( Part Type: Valve ), ( Ipn: 3925581 ), ( Oem Interchange: Motorhome, Tractor, Kenworth, Semi, Vermeer, Tiger Cat, Cummins, Allis Chalmers, Combine, Harvester, Sprayer, Gleaner, New Holland, D250, D350, W250, W350, 2500, 3500, 4500, 5500, Crane, Tadano, Hyster, Isb, Qsb, Qsc ), ( Oem Interchange Part Numbers: Freightliner Fl50, Freightliner Fl60, Freightliner Fl70, Freightliner Fl80, Freightliner Fs65, Freightliner Mt35, Freightliner Mt45, Freightliner Mt55, Freightliner Fc70, Ford Cf700, Ford F700, Isb, Qsb, White, Skid Steer, B3.9, Thomas, Small Cam, Cabover, 3920326, 3919015, 3934410, 3923476 )

Review BLK PRO Bypass Valve For 6c 6ct fits CUMMINS

The PRO 3925581 Bypass Valve is a crucial component designed for Cummins 6-cylinder engines, specifically models 6C, 6CT, 3934410, 3919015, 3920326, and 3923476. This valve plays an essential role in the cooling system, ensuring optimal engine performance and longevity.

The bypass valve is engineered with a robust construction, featuring a high-strength housing made from ductile iron. The valve body's internal components are manufactured from hardy materials, such as brass and stainless steel, ensuring reliable operation under extreme temperatures and heavy-duty conditions.

The PRO 3925581 Bypass Valve is designed to regulate coolant flow between the engine and the coolant recovery tank. It features a unique pressure relief function that helps prevent coolant surges, protecting the engine from potential damage due to thermal shocks. This valve also includes an integrated temperature sensor, which allows the engine management system to monitor coolant temperature and adjust cooling fan operation accordingly.

One of the standout features of this bypass valve is its easy-to-install design. It comes equipped with O-ring seals and a gasket to ensure a leak-free installation. The valve also includes all necessary hardware for mounting, including bolts and washers. Installation can typically be completed in a few hours, depending on the mechanic's experience and the accessibility of the engine compartment.

The PRO 3925581 Bypass Valve is an essential upgrade for Cummins engine owners seeking improved cooling system performance and engine protection. Its robust design, reliable operation, and easy installation make it a popular choice among professionals and DIY enthusiasts alike. By investing in this high-quality bypass valve, you can enjoy peace of mind knowing that your engine is well-protected and operating at its best.

A bypass valve, specifically the Cummins Part Number 3925581, is a component that can be found in various Cummins engines including 6CT, 3934410, 3919015, 3920326, and 3923476 models. This valve is designed to control the flow of coolant, allowing it to bypass the engine's coolant passages under certain conditions. Here are some potential pros and cons of purchasing this bypass valve.

Pros:

1. Improved engine performance: A faulty or worn bypass valve can negatively impact engine performance. By replacing it with a new one, you may notice improved engine power and efficiency.

2. Prevention of engine damage: A malfunctioning bypass valve can cause overheating, which can lead to significant engine damage. Replacing the valve can help prevent this damage and extend the life of your engine.

3. Better fuel economy: By maintaining optimal engine cooling, you can improve fuel economy and save money on fuel costs.

Cons:

1. Cost: Replacing a bypass valve can be an expensive repair, especially if you choose to have it done by a professional. The cost of the part itself, as well as labor and diagnostic fees, can add up.

2. Installation complexity: Installing a bypass valve can be a complex process, especially if you are not experienced in engine repair. It may require specialized tools and knowledge.

3. Ongoing maintenance: Like any mechanical component, a bypass valve may require ongoing maintenance to ensure it continues to function properly. This can add to the overall cost and time investment.

Ending Conclusion:

The decision to purchase a Cummins bypass valve, such as Part Number 3925581, depends on your specific circumstances. If you are experiencing engine performance issues or notice signs of overheating, replacing the valve may be necessary to prevent further damage and maintain optimal engine performance. However, it is important to consider the cost, installation complexity, and ongoing maintenance requirements before making a purchase.

Recommendation:

If you are unsure about the condition of your bypass valve or are experiencing engine performance issues, it is recommended that you consult a professional mechanic for diagnosis and repair. They can assess the situation and provide you with accurate information about the need for a new bypass valve and the associated costs. Alternatively, if you are confident in your mechanical abilities and have the necessary tools and knowledge, you may consider attempting the repair yourself. However, be sure to carefully research the installation process and follow all safety precautions.

Details:

Condition is New. Shipped with USPS Ground Advantage. Bypass Valve For Cummins 6C 6CT 3934410 3919015 3920326 3923476 3923477.

specifications voomvalve:

  • for models: Cummins
  • brand: Blk Pro
  • part type: Valve
  • ipn: 3925581
  • oem interchange: Motorhome, Tractor, Kenworth, Semi, Vermeer, Tiger Cat, Cummins, Allis Chalmers, Combine, Harvester, Sprayer, Gleaner, New Holland, D250, D350, W250, W350, 2500, 3500, 4500, 5500, Crane, Tadano, Hyster, Isb, Qsb, Qsc
  • oem interchange part numbers: Freightliner Fl50, Freightliner Fl60, Freightliner Fl70, Freightliner Fl80, Freightliner Fs65, Freightliner Mt35, Freightliner Mt45, Freightliner Mt55, Freightliner Fc70, Ford Cf700, Ford F700, Isb, Qsb, White, Skid Steer, B3.9, Thomas, Small Cam, Cabover, 3920326, 3919015, 3934410, 3923476

shipping voomvalve:

  • type: Calculated
  • class: Standard
  • transit: 4-9 Days
  • carrier: USPS
  • service: USPS Ground Advantage
  • cost: $0.00

seller voomvalve:

  • rating: 98.9%
  • # reviews: 1060
  • city: Hebron, Indiana

returns voomvalve:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

payments voomvalve:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

offer voomvalve:

  • options: Ship-to-home
  • quantity: 4
  • started: December 6, 2025
  • sold: 0
  • best offers: True
  • availability: In Stock

general voomvalve:

  • condition: New
  • Engines Engine Parts > Valvetrain Components > Valves
for models: cummins, part type: valve, oem interchange: motorhome, tractor, kenworth, semi, vermeer, tiger cat, cummins, allis chalmers, combine, harvester, sprayer, gleaner, new holland, d250, d350, w250, w350, 2500, 3500, 4500, 5500, crane, tadano, hyster, isb, qsb, qsc, oem interchange part numbers: freightliner fl50, freightliner fl60, freightliner fl70, freightliner fl80, freightliner fs65, freightliner mt35, freightliner mt45, freightliner mt55, freightliner fc70, ford cf700, ford f700, isb, qsb, white, skid steer, b3.9, thomas, small cam, cabover, 3920326, 3919015, 3934410, 3923476,
category: auto parts > engines engine parts > valvetrain components > valves, sku: 10919167888363793,

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