Description
Product Overview
The LUBE USA 529409 fill cap (OC-4) is designed for use on lubrication pump reservoirs. It serves as the oil supply port while helping maintain clean oil flow into the system.
This cap includes integrated features such as a strainer and sealing components to help protect the lubrication system from contamination and maintain proper operation.
Applications
- Lubrication pump reservoirs
- CNC machines and machining centers
- Centralized lubrication systems
- Oil system maintenance and service
π Fill caps are used on lubrication systems to allow oil filling while helping prevent contaminants from entering the system
Key Features
- Designed as an oil reservoir fill cap (OC-4 type)
- Integrated strainer to help filter contaminants
- Helps maintain clean oil supply
- Supports proper system sealing and operation
- Compatible with multiple LUBE pump models (AMZ, AMO, AMR series)
- Durable construction for industrial use
Why This Part Matters
Contamination entering through the oil fill point can lead to:
- Clogged lines and filters
- Increased wear on components
- Reduced lubrication performance
This fill cap helps prevent those issues by filtering incoming oil and maintaining a sealed, controlled entry point into the system.
When to Use This Fill Cap
- When replacing a damaged or missing cap
- During lubrication system maintenance
- When contamination is a concern
- When servicing or rebuilding lubrication pumps
Specifications
- Part Number: 529409
- Model: OC-4
- Type: Oil fill cap / reservoir cap
- Function: Oil supply + filtration + sealing
- Application: Lubrication pump systems
π Need Help Matching Lubrication Parts?
Not sure if this cap fits your system?
π Call us or request a quoteβwe can help you match the correct pump parts and components.





