Hydra-Cell M03-009-1018 - 1.8 GPM Hollow Shaft Cam

Hydra-Cell M03-009-1018 1.8 GPM Hollow Cam

If your Hydra-Cell M03 series pump is starting to lose flow consistency or feels like it's working harder than it used to, the internal cam is often the root cause. The M03-009-1018 is a genuine 1.8 GPM hollow shaft cam built specifically for Wanner Engineering's close-coupled M03 diaphragm pumps, designed to restore the precise stroke action that drives these seal-less pumps in the first place.

This cam is engineered around Hydra-Cell's signature seal-less platform, which relies on smooth, accurate cam movement to actuate the diaphragms without the packing or dynamic seals found in traditional pumps. Because the M03 series is a close-coupled, 56C-motor design, the hollow shaft cam has to fit and index precisely to keep the pump running true, without vibration, premature wear, or pressure loss.

Whether the pump is being used in a chemical transfer system, an agricultural sprayer, a car wash, a water treatment process, or general industrial fluid handling, this cam gives technicians and maintenance teams a straightforward way to bring an aging M03 pump back to its original 1.8 GPM performance without replacing the entire unit.

Key Features

• Genuine Wanner Engineering Hydra-Cell replacement part
• Precision-machined 1.8 GPM hollow shaft cam
• Engineered for the seal-less, positive displacement M03 pump platform
• Compatible with 5/8 inch hollow shaft, close-coupled 56C motor configuration
• Supports reverse (bi-directional) shaft rotation
• Helps restore original flow accuracy and reduce vibration from worn cam wear

Applications

• Industrial fluid transfer and process pumping
• Chemical injection and metering systems
• Agricultural and lawn care spraying equipment
• Car wash and vehicle cleaning systems
• Water and wastewater treatment
• Food and beverage processing equipment
• Reverse osmosis and filtration systems
• General OEM equipment using Hydra-Cell M03 pumps

Specifications

• Part Number: M03-009-1018
• Flow Rate: 1.8 GPM at 1750 RPM
• Shaft Type: Hollow shaft, 5/8 inch I.D.
• Configuration: Close-coupled, 56C direct drive
• Shaft Rotation: Reverse (bi-directional)
• Compatible Series: Hydra-Cell M03 pump series
• Manufacturer: Wanner Engineering, Inc.
• Component Type: Hydraulic end drive cam

Frequently Asked Questions

Q: Is the M03-009-1018 cam compatible with all Hydra-Cell M03 pumps?
It is designed for the M03 hollow shaft, close-coupled configuration, so it's important to confirm the pump's existing shaft type and cam code before ordering, since Hydra-Cell offers multiple cam ratings within the M03 series.

Q: Do I need to replace any other parts when installing this cam?
In most cases the cam can be installed on its own, but if the pump has significant wear elsewhere, technicians often inspect the bearings and oil seals at the same time to avoid a repeat service call.

Q: What kind of pumps use a hollow shaft cam like this one?
Hollow shaft cams are used in close-coupled diaphragm pumps that mount directly to a 56C frame motor, which is common across industrial, agricultural, and commercial equipment rather than any single industry.

Q: How does the cam affect the pump's flow rate?
The cam determines the stroke length of the diaphragms, so a 1.8 GPM cam like this one sets the pump's maximum output at 1750 RPM, and swapping cams is how flow rate is changed on this pump family.

Q: What oil should be used after installing this cam?
Hydra-Cell pumps require Hydra-Oil, and the correct type depends on the diaphragm and O-ring material in the pump, so it's worth checking the pump's original build code before topping off or changing the oil.