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INJECTOR RETURN CHECK VALVE - CUMMINS ('03-'07, 5.9L)

SKU
3957290
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$124.95
Status: Out of Stock. Expected Delivery Date: Dec 31, 2026
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The injector return check valve located on the back of the cylinder head can leak fuel after it gets some time on it. We offer the Cummins 3957290 replacement part to fix this problem.

To install this check valve you will need two gaskets:

  • 12MM gasket
  • 14MM gasket
See below to add to your order.
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