The Texas Speed 3/8" NPT to 4AN Flare Straight Adapter Fitting converts a 3/8" NPT tapered pipe thread port to a -4AN flare so an AN hose end can be connected directly to the component. 3/8" NPT ports show up on fuel pumps, filters, regulators and many oil and coolant accessories, and -4AN is a small line size commonly used for gauge feeds, fuel pressure reference and small oil or coolant lines. This straight adapter makes that transition in one piece instead of stacking separate fittings together.
Texas Speed machines its adapter fittings from 6061 aluminum and black anodizes them for corrosion resistance, which keeps the fitting light and durable. Texas Speed designs the line to cut down on the number of joints in a fuel, oil or coolant system, which saves room in tight spots and lowers the overall cost of plumbing a build. The fitting is compatible with most fuels, solvents and oils. As with any NPT connection, the tapered pipe thread side should be sealed with a fuel-safe thread sealant rated for the fluid being carried; the AN flare side seals metal to metal and does not use sealant.
Specifications
- Fitting type: Straight adapter, 3/8" NPT to -4AN flare
- Pipe thread side: 3/8" NPT
- AN side: -4AN flare
- Angle: Straight
- Material: 6061 aluminum
- Finish: Black anodized
- Compatibility: Most fuels, solvents and oils
- Part number: TSP-4033 (Texas Speed 25-4033, mfr. SL816-04-06-021)
FAQ
What does the Texas Speed 3/8" NPT to 4AN flare adapter fitting do?
It threads into a 3/8" NPT port and provides a -4AN flare on the other end, so a -4AN hose end or AN adapter can be attached to a component that was drilled and tapped for NPT pipe thread. It is a straight, in-line adapter with no bend.
Is this 3/8" NPT to 4AN adapter safe for E85 and gasoline?
Yes. Texas Speed states its adapter fittings are compatible with most fuels, solvents and oils, and the black anodized 6061 aluminum body resists corrosion in fuel and oil systems.
Do I need thread sealant on the Texas Speed 3/8" NPT to 4AN fitting?
Sealant is used only on the NPT side. NPT is a tapered pipe thread that seals on the threads themselves, so a fuel-safe thread sealant should be applied to the 3/8" NPT end. The -4AN flare end seals on the flare itself and is installed dry.
What is the Texas Speed 3/8" NPT to 4AN adapter made of?
The fitting is machined from 6061 aluminum and finished in black anodizing. Texas Speed uses this construction across its adapter fitting line for a lightweight, corrosion-resistant fitting.
Is this a universal part?
Yes. The Texas Speed 3/8" NPT to 4AN flare adapter is not vehicle specific. It fits any component with a 3/8" NPT port and mates with any standard -4AN hose end or adapter fitting.
