9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
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10:361A Auto: Repair Tips & Secrets Only Mechanics Know
Watch on YouTubeAn O-ring is a round rubber sealing ring that sits in a groove to seal a joint against fluid or gas.
Compressed between two surfaces, it deforms to fill the gap and blocks leaks even under pressure; the material is matched to the fluid and temperature.
O-rings seal connections in the fuel, hydraulic, cooling, and air systems. The correct O-ring matches the groove size and the fluid it must resist.
Yes — it is linked to 1 OE-compatible part number(s), shown in the compatible parts section above.
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