Massey Ferguson MF375 Tractor Hydraulic Gear Pump Replacement

GBC-MF375-HYD — Massey Ferguson MF375 Tractor Hydraulic Gear Pump Replacement

The Massey Ferguson MF375 is one of the most recognisable and widely distributed mid-range tractors in Australian agriculture. In the 75 hp class, the MF375 found its place on mixed farms across New South Wales, Victoria, Queensland, and South Australia through the 1990s and into the 2000s — a period of intense mechanisation on Australian mixed farms. Its combination of a responsive hydraulic system, reliable Perkins engine, and practical cab design made it a first-choice purchase for farms that needed one versatile tractor to cover tillage, hay-making, loader work, and general implement operation. Today, tens of thousands of MF375s remain in service on Australian farms, and hydraulic pump replacement is one of the most common service jobs on these tractors.

The {sku} is an aftermarket replacement hydraulic gear pump specifically matched to the MF375. It cross-references OEM references 3786323M91 and 3786323M92 — the primary pump part numbers used on the MF375 across its production life. Both M91 and M92 suffix variants are covered by this aftermarket replacement. Visit the GBC homepage for the full MF hydraulic pump range.

OEM Reference Numbers and MF375 Fitment

The 3786323M91 was the original hydraulic pump part number for the MF375; 3786323M92 was a subsequent specification revision that replaced M91 in the MF parts system. Both references are dimensionally equivalent for replacement purposes. The {sku} covers both. If your MF375 pump carries either reference, this is the correct aftermarket replacement.

Technical Specifications

MF375 in Australian Mixed Farming

The MF375’s appeal in Australian mixed farming stemmed from its versatility. Farms running sheep and grain in the Mallee, cattle and crops in central Queensland, or hay and beef in the Southern Tablelands found the MF375 capable of handling everything from a 3-metre chisel plough to a front-end loader and bale spike. The hydraulic system on the MF375 supports draft control — a feature that allows the tractor to automatically maintain implement depth in varying soil conditions — which relies on a fully functional and correctly calibrated hydraulic pump. A worn pump directly compromises draft control accuracy, affecting tillage depth uniformity.

For MF375 owners who rely on this tractor as a primary farm machine, pump replacement at first signs of hydraulic performance decline is a cost-effective maintenance strategy. The {sku} is designed to restore full MF375 hydraulic performance including draft control, position control, and remote cylinder response. Contact our team for MF375-specific pump availability and pricing.

MF375 Hydraulic Pump Replacement Procedure

On the MF375, the hydraulic gear pump is accessible from the right-hand side of the transmission after removal of the hydraulic pump cover. The pump is spigot-mounted and retained by bolts through the pump flange. Note the pump shaft engagement depth before removal — the replacement {sku} pump must engage the transmission drive coupling to the same depth to ensure proper drive connection without shaft bottoming.

Use Massey Ferguson MF specification UTTO (M1135 or equivalent) when refilling and bleeding the system. If you are uncertain about any step in the MF375 pump replacement procedure, the workshop manual for your model provides full instructions. Our team can also provide procedural guidance — reach out via the contact page or visit our About Us page.

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