1/8" NPT Male to 1/4" Push-to-Connect Straight Vacuum / Boost Fitting
The JBtuned 1/8" NPT Male to 1/4" Push-to-Connect Straight Fitting converts a 1/8" NPT female port to a 1/4-inch push-to-connect interface for automotive vacuum and boost-reference plumbing.
The straight configuration is designed for applications where the reference line can continue directly away from the threaded port without requiring an immediate 90-degree turn.
Quick Technical Facts
- SKU: JB-PTC-1/8NPT-1/4
- Connection A: 1/8" NPT male
- Connection B: 1/4" push-to-connect (PTC)
- Geometry: Straight
- Body: Aluminum
- Body Finish: Black anodized
- Push Collar: Gold
- Application: Automotive vacuum / boost-reference plumbing
Threads Into a 1/8" NPT Female Port
The threaded side of this fitting is 1/8" NPT male and is designed to mate with a compatible 1/8" NPT female port.
NPT is a tapered pipe-thread connection and is different from an AN flare connection. Confirm the port type before ordering rather than selecting the fitting only by approximate thread size.
Choose the Straight Version for Direct Routing
Choose this version when the 1/4" reference line can leave the threaded port without immediately changing direction.
If surrounding components require the line to turn as soon as it exits the port, use the 1/8" NPT Male to 1/4" Push-to-Connect 90° Fitting.
Vacuum & Boost-Reference Applications
This fitting provides a compact transition from a 1/8" NPT female port into the JBtuned push-to-connect reference-line system.
1/8" NPT ports are commonly found on aftermarket performance components and distribution hardware used in vacuum and boost-reference plumbing.
The correct reference source depends on the device being connected. Follow the instructions for the wastegate, blow-off valve, boost controller, gauge, regulator or engine-management system rather than assuming all reference lines can share the same source.
Need to Branch at the Port?
If the 1/8" NPT port needs to supply two separate 1/4" push-to-connect branches, use the 1/8" NPT Male to Dual 1/4" Push-to-Connect Tee.
Questions About the Connection?
If you are unsure whether your component uses 1/8" NPT, -4AN or another connection, verify the mating port before ordering. JBtuned offers separate fittings for each connection type and routing configuration.