The Hydro-Gear PG-AGNP-DY1X-XXXX Hydraulic Pump is a genuine OEM PG Series hydraulic pump engineered specifically for select Toro Z Master zero-turn mowers, including models like the Z500 and Z528. Manufactured by Hydro-Gear, the original equipment manufacturer for Toro hydraulic systems, this pump delivers the same factory-level performance, fitment, and reliability as the unit installed on new equipment.

Designed for hydrostatic drive systems, this pump plays a critical role in delivering smooth speed control, responsive maneuverability, and consistent power output. Whether you're maintaining commercial mowing equipment or restoring performance on a Toro Z Master, this OEM replacement ensures dependable operation under demanding conditions.

The PG-AGNP-DY1X-XXXX replaces Toro part number 110-4150 and is built to meet exact OEM specifications. Because hydraulic systems are highly sensitive to contamination, it is essential to follow proper installation procedures when replacing a pump.

Before ordering, always verify the Hydro-Gear part number stamped on your existing pump to ensure correct fitment. Additionally, it is strongly recommended to flush hydraulic tanks and lines, install a new oil filter, and inspect or replace wheel motors if necessary. Failure to clean the system can result in premature failure of the new pump.

As a special order part, this item is non-returnable. If you need assistance confirming compatibility, contact Carroll Stream Motor Company at (248) 628-4638 prior to ordering.

Key Features

• Genuine Hydro-Gear PG Series hydraulic pump
• OEM replacement for Toro Z Master mowers
• Replaces Toro 110-4150
• Designed for hydrostatic drive systems
• Factory-equivalent fit and performance
• Built for commercial-grade durability
• Ideal for restoring smooth drive response and control

Frequently Asked Questions

Is the Hydro-Gear PG-AGNP-DY1X-XXXX a genuine OEM hydraulic pump?

Yes. The PG-AGNP-DY1X-XXXX is a genuine Hydro-Gear hydraulic pump. Hydro-Gear is the OEM manufacturer for Toro hydraulic systems, and this pump matches factory specifications.

What does the PG-AGNP-DY1X-XXXX replace?

This pump replaces Toro part number 110-4150 and is designed as a direct OEM replacement.

What Toro models does this hydraulic pump fit?

This pump fits select Toro Z Master Z500 and Z528 models. It may also fit other Toro equipment using this specific Hydro-Gear pump.

Why is it important to verify the stamped part number before ordering?

Hydraulic pumps may look similar but have different specifications and fitment. Verifying the exact Hydro-Gear number stamped on your existing pump ensures proper compatibility.

What should I do when installing a new hydraulic pump?

It is recommended to:

• Flush hydraulic tanks and lines
• Replace the oil filter
• Inspect or replace wheel motors

These steps help prevent contamination and extend the life of the new pump.

Why do hydraulic pumps fail after replacement?

Most failures occur due to contamination left in the hydraulic system. Debris in lines, tanks, or motors can quickly damage a new pump.

Is this a special order part?

Yes. This pump is a special order item and is non-returnable, so confirming compatibility before purchase is essential.

Who can help confirm fitment?

You can call Carroll Stream Motor Company at (248) 628-4638 to speak with a specialist before ordering.