Description
MA3H –
PAI 121250 is a Viton O-ring commonly used as an oil cooler O-ring on Cummins applications. PAI directly cross-references it to Cummins 3073966. It is also used in some Caterpillar applications through the CAT 0619455 / 061-9455 reference.
Published dimensions are 1.859 in / 47.22 mm I.D. × 0.139 in / 3.53 mm cross-section, 75-durometer Viton, AS568 size -225.


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