Caterpillar 8J-4390 Piston Seal - 8J4390
Piston SealVerified Caterpillar Piston Seal (8J-4390 / 8J4390) — OEM and original manufacturer parts and spares for construction and mining machinery. International delivery. Full 1-year warranty.
Caterpillar 8J-4390 / 8J4390 Piston Seal is an OEM and aftermarket hydraulic cylinder piston for Caterpillar equipment in earthmoving equipment. Manufactured to OEM bore diameter, seal groove geometry, and material specifications for correct hydraulic sealing and reliable actuator function. Ships with a 1-year warranty. Stocked for prompt dispatch to workshops and fleet operators globally.
Caterpillar