Product Description
Cummins 3007442 O-ring seal for compatible Cummins diesel engines, including select NT855, N14, and K19 configurations. Designed to provide a seal between mating engine components, helping prevent fluid or air leakage.
Features a nominal 0.299-inch inside diameter and 0.103-inch cross-sectional thickness. The PAI replacement uses Buna-N 70 material and corresponds to standard O-ring size AS568-109.
Cross-references Cummins part numbers 3007442 and 211891. Aftermarket equivalents include PAI 121219 and Interstate-McBee M-3007442.
Product Dimensions:
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Inside diameter: 0.299 inches
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Cross-sectional thickness: 0.103 inches
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Calculated outside diameter: 0.505 inches
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Standard O-ring size: AS568-109
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Aftermarket reference material: Buna-N 70
Additional Information: Cummins 3007442 is identified as an engine O-ring seal in Cummins parts listings. PAI 121219 is a documented replacement, and Interstate-McBee offers M-3007442. Aftermarket references identify compatibility with Cummins NT855, N14, and K19 engine families.
Verify the original part number, sealing location, O-ring dimensions, and engine compatibility before ordering. Sold individually.