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Caterpillar · Hardware & Fasteners
4F-7390
In stock · ships from Knoxville
This is a genuine Caterpillar O-ring seal used in cylinder head, valve cover, and hydraulic ORFS fitting applications on heavy equipment.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
Caterpillar
Caterpillar
Used in many sealing locations across Caterpillar equipment. Verify exact position by consulting the machine's parts manual.
Part data verified against 5 catalog sources
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It has an inner diameter of 53.34 mm and is typically black, made of durable nitrile (NBR) material. The O-ring prevents fluid leaks under pressure and is replaced when it becomes hard, cracked, or during routine gasket maintenance.
Part Number: 4F-7390
RING / T34L1A
Vendor: STOWERS MACHINERY
Dealer: KP Services Crossville
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