Graco 16E462 Industrial Coupler – 3/8 MPT x 1/4 NPT Overview
Compatible Machines
This Graco 16E462 Industrial Coupler is a universal threaded adapter used across paint sprayers, texture sprayers, and industrial fluid-handling systems. It is not tied to a specific machine model and fits any equipment that uses a 3/8" MPT port transitioning to a 1/4" NPT component.
- Any Graco sprayer or pump with a 3/8" MPT fluid port
- Systems requiring transition to 1/4" NPT fittings or hoses
- Airless paint sprayers with mixed-thread adapters
- Industrial coating and lubrication units with 3/8" MPT to 1/4" NPT connections
Product Details
The Graco 16E462 Coupler is a durable industrial connector designed to join components using different thread sizes. It allows smooth, leak-free transition from 3/8" MPT to 1/4" NPT, commonly needed in paint sprayer assemblies, hose connections, and manifold setups.
| Part Number | 16E462 |
| Thread Type | 3/8" MPT × 1/4" NPT |
| Usage | Thread adapter for fluid-handling systems |
| Application | Paint sprayers, hoses, manifolds, industrial pumps |
| Material | Industrial-grade steel construction |
Key Features
- Ensures secure and leak-resistant threaded connections
- Useful for adapting different hose and port sizes
- Suitable for high-pressure and industrial environments
- Compatible with a wide range of Graco fluid systems
Frequently Asked Questions
These are two different male pipe thread sizes. The coupler connects a 3/8" MPT threaded port to a 1/4" NPT threaded component or hose.
It fits if your sprayer uses a 3/8" MPT threaded port and you need to connect a 1/4" NPT hose or fitting. Always verify the thread sizes on your equipment before ordering.
Thread sealant or PTFE tape is recommended for high-pressure systems to prevent leakage and ensure a secure connection.
Yes, the coupler is designed for industrial environments, including high-pressure paint sprayer systems, provided the thread sizes match.
