Gast 5LCA-46S-M550GX Piston Pump at Kinequip is a rugged, oil-less compressor designed for demanding applications that require clean, pulse-free air. Built with a compact footprint and durable construction, this piston pump is part of Gast’s 5L series—engineered for long service life and minimal maintenance.
The 5LCA-46S-M550GX features corrosion-resistant internal components and a proprietary Teflon-filled piston ring that maintains consistent flow throughout the life of the unit. Its oil-less operation ensures that the discharge air remains free of contaminants, making it ideal for applications where air purity is critical. The pump is also designed for easy servicing, with wear items that can be replaced in the field to reduce downtime and extend equipment life.
Quick Product Highlights
- Oil-less piston pump for clean, contamination-free air
- Corrosion-resistant internal components for extended life
- Proprietary piston ring maintains consistent flow
- Field-serviceable wear items for reduced downtime
- Built for continuous-duty use in demanding environments
Get your Gast 5LCA-46S-M550GX Piston Pump at Kinequip today.
Can water be pumped through my piston unit?
No, clean dry air only.
My piston pump is leaking around the heads is this normal?
The piston unit is not leak proof, leakage around the head is normal, and doesn’t affect the specified flow rate of unit.
What kind of oil do I need for my piston unit?
None, Gast piston units are oilless, and do not require lubrication.
Can I pump combustible gas through my piston pump?
No, none of Gast models are designed to pump combustible gases.
I received my dual voltage unit, wired it for 115 volt power, it runs very slow and lopes. What is wrong?
The unit is wired for high voltage from the factory, check the motor label to see how to rewire unit to for low voltage.
What can I use to clean my piston unit with?
Gast flushing solvent AH255D, if this is not available you can use electrical contact cleaner.
Are there repair kits available for my piston unit?
Yes, check the operation manual for kit required. If you don’t have the manual, go to Technical Documents and choose manual.
What comes in a repair kit?
Rings, seals, rider ring, intake & exhaust valves, and gaskets for the head and cylinder.
Can I replace the motor of my piston unit?
The motor can not be replaced in the field, the unit should be sent to an authorized service center.
Can I replace the rod assemblies in my piston unit?
The rod assembly can not be replaced in the field, the unit should be sent to an authorized service center.
Shipping
We are committed to delivering your machine parts quickly and securely. Orders are processed within 1-2 business days, and shipping times vary based on your location and selected shipping method. Standard shipping typically takes 3-7 business days, while expedited options are available for faster delivery. We ship domestically and internationally, with tracking information provided for all orders. Shipping rates are calculated at checkout. Please ensure your shipping address is accurate to avoid delays.
Returns
We want you to be fully satisfied with your purchase. If you need to return a product, we accept returns within 30 days of delivery for a full refund or exchange, provided the item is unused, in its original condition, and includes all packaging. Customers are responsible for return shipping costs unless the return is due to a defect or error on our part. To initiate a return, please contact our support team with your order details. Refunds will be processed within 5-7 business days after receiving the returned item.
