Product Overview

The 71400133 seal kit is an aftermarket hydraulic cylinder seal kit for Fiat-Hitachi excavators. The independent US parts catalog of Hercules Sealing Products lists the same part number (FH-71400133) as a boom cylinder hydraulic seal kit for the FH300-1 and FH300-2 excavators in a 100 mm cylinder class, and that is the application this kit is built around at our factory. It suits owners, repair shops and parts wholesalers maintaining Fiat-Hitachi machines that need a dependable boom cylinder reseal.

Rebuilding the boom cylinder with a matched seal kit stops external leaks along the rod, keeps the boom from drifting under load, and protects the cylinder bore from contamination so the machine keeps its digging and lifting capability.

Verified Application

Source conflict / gap: the DJF listing additionally covers FH220-1 / FH220-2 and describes the kit for boom, arm and bucket cylinders. The independent catalog only confirms FH300-1 / FH300-2 boom. If your machine is an FH220 or the cylinder is an arm or bucket cylinder, send us the cylinder part number and we will check the correct kit before shipment.

Replacement Scope

The kit is intended to replace the full sealing set of one boom cylinder: rod seal, piston seal, wiper, guide/wear rings and the static O-rings of the cylinder head and piston. Boom cylinders carry the highest sustained loads on an excavator, so the sealing set must hold pressure in both directions and keep abrasive dirt out of the bore.

Exact component quantities are confirmed per order against your cylinder; the factory does not publish a fixed parts list for this number.

Fitment Verification

• Confirm the machine model: FH300-1 or FH300-2 (the externally verified application).
• Confirm the cylinder position: boom cylinder (the externally verified position).
• For FH220 machines or arm/bucket cylinders, verify the stamped cylinder part number with our sales team before ordering.

Factory Inspection & Packing

Kits are assembled in our own factory from compound-checked seal batches, gauged against the picking list for the 71400133 kit, and packed so that the sealing lips are protected in transit. Each pack carries the part number label, and export cartons are prepared for air or sea freight with the packing list and commercial invoice.

Wholesale Ordering

DJF supplies the 71400133 kit factory-direct to excavator parts wholesalers and repair workshops. Ordering from the manufacturer gives you direct quality control, competitive bulk pricing and reliable repeat supply for the Fiat-Hitachi range, including companion kits for the FH200 / FH220 and FH300 families.

Minimum Order Quantity (MOQ)

MOQ: 5 kits. Single-kit trial orders are accepted for fitment testing, and volume pricing applies from wholesale quantities upward. Contact our export team for the exact MOQ, tier pricing and lead time for 71400133.

FAQ

Q: Does the 71400133 kit fit the FH220-1 / FH220-2 excavator?

A: The DJF listing includes FH220-1 / FH220-2, but the only independent catalog reference found (Hercules Sealing Products) lists 71400133 for FH300-1 / FH300-2 only. If you are rebuilding an FH220 cylinder, send us the stamped cylinder part number so we can verify the correct kit.

Q: Is 71400133 a boom kit or an arm / bucket kit?

A: The independent catalog lists it as a boom cylinder kit. If your FH300 needs arm or bucket cylinder seals, provide the cylinder number and we will select the matching kit from our catalog.

Q: What is the cylinder size?

A: Hercules Sealing Products lists the FH-71400133 kit in the 100 mm cylinder class. Confirm the bore of your boom cylinder before ordering.

Q: Do you supply other Fiat-Hitachi seal kits?

A: Yes. We manufacture kits across the Fiat-Hitachi range, including the FH200 / FH220 (e.g. 71445801) and FH300 (e.g. 71400282) families, as well as custom sizes on request.