Description
MQ3F – New PAI 321336 single fuel injector O-ring kit for Caterpillar 3126B engines. Replaces Caterpillar 242-1539, 196-6934 and 224-5358. Kit contains: (1) O-ring 421217 / Navistar 1814695C1, (1) rectangular sealing ring 321344 / Cat 150-4105, (1) O-ring 321335 / Cat 237-3800, (1) O-ring 321334 / Cat 148-2903, (1) plastic sealing ring 321345 / Cat 149-5240, (1) injector backup ring 442061 / Navistar 1817073C2.


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