Graco 166421 Fitting – Nipple Pipe
Compatible Machines
This Graco 166421 fitting is a universal pipe-nipple style connector used across multiple Graco fluid and airless systems. It does not have a specific machine-exclusive listing, so compatibility depends on matching thread size, pressure rating, and port type. Check your sprayer’s parts manual to confirm fitment.
- General Graco Airless Sprayers
- General Graco Finishing Systems
- Models using 1/4" NPTF-style fittings in fluid manifolds
Product Overview
The Graco 166421 Fitting Nipple Pipe is an OEM component designed for connecting fluid passages within high-pressure spray systems. It is commonly used between pump outlets, manifolds, valve blocks, and hose assemblies where a durable threaded pipe nipple is required.
Key Features
- OEM Graco pipe-nipple style fitting for secure fluid connections
- High-strength construction suitable for airless system pressures
- Ideal for pump, manifold, and hose connection points
- Helps maintain leak-free fluid pathways
When to Use This Fitting
- Replacing a damaged or leaking nipple-pipe connection
- Restoring proper sealing in fluid manifolds
- Ensuring OEM-spec performance in high-pressure applications
Frequently Asked Questions
It connects two threaded fluid passages, typically between the pump, hose, or manifold, ensuring a strong and sealed connection.
This fitting is not tied to a specific sprayer model. Compatibility is determined by matching thread type and size with the ports on your machine. Always check your sprayer’s manual before purchasing.
Yes, the 166421 is a genuine OEM component manufactured by Graco for dependable system performance.
