Fiat 480 Tractor Hydraulic Gear Pump Replacement – 480SH

GBC-FIAT-480SH — Fiat 480 Tractor Hydraulic Gear Pump Replacement – 480SH

The Fiat 480 is a compact but capable utility tractor that saw widespread use in Australian orchards, vineyards, and small mixed-farming operations from the late 1970s onwards. Its hydraulic system — fed by an external gear pump — powers the three-point linkage and any remote cylinders fitted. Pump wear on these tractors typically shows as slow or hesitant hitch movement, a high-pitched whine from the hydraulic pump, or fluid leaking from the pump body or shaft seal area.

The GBC-FIAT-480SH is a direct-replacement gear pump for the Fiat 480. Key specification: 13.0 ml/r displacement, 160 bar rated pressure, and left-hand (anti-clockwise) shaft rotation. The inlet port is 5/8-18 UNF and the discharge port is M14×1.5 metric thread — both matching the OEM configuration exactly. For the full GBC hydraulic pump range, visit the GBC homepage.

MOQ: flexible. Minimum order value USD 1,500; mixed orders and trial quantities welcome.

OEM Reference Numbers and Fitment

The 480SH variant is the left-hand (anti-clockwise) rotation version of the SH-series pump. Verify rotation direction before ordering — fitting a right-hand pump to a left-hand drive will result in reverse flow and immediate failure. If your existing pump carries a FIAT or 480 reference and spins anti-clockwise when viewed from the drive end, the GBC-FIAT-480SH is your replacement. Contact our team if you need assistance confirming rotation.

Technical Specifications

Understanding Shaft Rotation Direction

One of the most critical specification checks when ordering a replacement gear pump is the shaft rotation direction. External gear pumps are designed to pump in one direction only — reversing rotation causes the internal flow path to reverse, starving the pump of lubricating fluid and sending discharge pressure back through the inlet line. This causes instant damage to the pump and potentially to hoses and valves downstream.

To identify rotation direction, view the pump from the drive end (shaft end) with the pump in normal operating position. Anti-clockwise (left-hand) rotation means the shaft turns counter-clockwise when viewed from this position. The Fiat 480 is a left-hand rotation application; the GBC-FIAT-480SH is manufactured specifically for this configuration. Contact us if you need help confirming the rotation on your specific pump before ordering.

Installation and Commissioning

When replacing the hydraulic pump on a Fiat 480, first drain the hydraulic reservoir or clamp the suction hose to minimise fluid loss. Remove the three or four mounting bolts, withdraw the old pump, and clean the mounting face thoroughly. Inspect the drive coupling or shaft for wear — a worn coupling will rapidly wear the new pump shaft. Fit the replacement GBC-FIAT-480SH with a new gasket, reconnect the inlet (5/8-18 UNF) and outlet (M14×1.5) lines, and torque the mounting bolts to specification.

Before first start, prime the pump by pouring a small quantity of clean hydraulic oil into the inlet port. Start the engine at low idle and slowly cycle the hydraulics to purge air. Check for leaks at all connections. Replace the hydraulic filter at the same time. Contact us for any technical support.

Supply and Ordering

GBC stocks tractor hydraulic gear pumps for Fiat, Ford, Massey Ferguson, and other agricultural brands and ships to customers throughout Australia and internationally. All pumps are inspected and packaged to prevent transit damage.

For pricing, lead times, and quantity discounts, contact our team. Mixed orders across different pump models are welcome with a minimum order value of USD 1,500.

About GBC

GBC is a specialist supplier of aftermarket agricultural and industrial hydraulic components, operating across Australia and key global markets. With a manufacturing background spanning gear pumps, hydraulic cylinders, power transmission components, and tractor drivetrain parts, GBC provides OEM-grade replacement parts with flexible order quantities and competitive lead times. Our sourcing team works directly with certified factories to ensure every unit meets or exceeds original equipment specifications. Learn more on our About Us page, or browse our full range at the GBC homepage.

Frequently Asked Questions