BOSCH UNIVERSAL MUILTI-COLOR SEAL KIT#10250

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Bosch Fuel Injector Seal O'ring Kit

Universal Bosch O-Ring

Dimensions: 5/16"ID X 9/16"OD X 1/8"CS
Actual: 0.296"ID X 0.139"CS
Metric: 7.52mm ID X 3.53mm CS

This is the most common used “14mm” or “American” O-ring That fits most Injectors both top and bottom.

Bottom O'ring that is slightly smaller and slightly larger is part#21027

PART#

21018-3 BROWN

21018-7 DARK BLUE

21018-10 YELLOW

21018-5 RED

21018-2 GREEN