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Cummins 4B ISB Cylinder Head Assembly CUM 3920611


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Cummins 4B ISB Cylinder Head Assembly CUM3920611

*Please Verify OEM Number Before Purchase

  • Heavy Duty Cylinder Head Assembly
  • Fits Cummins 4B And ISB Engines
  • Engine Serial Number Required To Confirm Fitment
  • Direct Aftermarket Replacement For OEM#s: 3800338, 3802339, 3920611, 3929736, 3930913, 3930915, 3967444, 3967444R, 3967444RX
  • Includes:
    • 1 Cylinder Head Assembly (3927298)
    • 4 Intake Valve Kit (3802355)
    • 4 Exhaust Valve Kit (3802356)
    • 8 Valve Spring (3900276)
    • 8 Valve Spring Retainer (3900299)
    • 8 Valve Stem Seal (3921640)
    • 1 Head (INDER)
    • 2 Plug (49AX242)
    • 2 Valve Head
    • 7mm Injector Holes
  • Thorough Cleaning To Remove All Foundry Core Debris And Machining Fragments
  • Pressure Test Cylinder Head To 20psi
  • Installation Of All Valves And Springs
  • Valve Seats Machined To OE Specifications
  • Vacuum Check Valve To Seat Sealing 100%
  • World Class Inspection
  • Sold Individually
  • Quality Made Product

This replacement cylinder head for Cummins 4B and ISB engines provides space for the passages that feed air and fuel to the cylinder allowing the exhaust to escape.

*This product ships LTL Freight and the shipping quotes are based on commercial addresses only. If you need a quote to have this delivered to a residential address or farm, please call us so we can provide you with an accurate shipping price. Failing to provide a commercial address could result in delays with processing your order. Please refer to our Shipping Info section at the bottom of our website for more information. All LTL shipments must be inspected prior to signing delivery documentation. Notate damages on the BOL with the freight carrier at time of delivery. Failure to do so will void the claims process and the receiver will be liable for damages.

Any mention of OEM names or OEM product ID numbers/descriptions/model numbers is intended for identification purposes only and does not indicate that it is an OEM part.

If you should need additional Truck Parts and Accessories, please don't hesitate to call our toll-free number 1-888-888-7990

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Warranty Information

PAI Industries Warranty Policy

Manufacturer warranties this product against defects in material or workmanship for a period of two years (2 yrs.) from the original date of purchase of the product by a consumer.

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