Description
When you’re running a custom fuel system, brake line setup, or pneumatic circuit, thread mismatches can force you into expensive fabrication or unreliable adapters. This Allstar Performance reducer gives you a straightforward solution to step down from 1/2in NPT to 3/8in NPT without compromises—saving time on the build and ensuring a leak-free connection that holds up under pressure.
Built from aluminum and finished in black anodized coating, this fitting resists corrosion while keeping weight minimal. The NPT (National Pipe Thread) standard ensures compatibility with virtually any plumbing-style automotive system, making it a reliable addition to your technical arsenal.
- 1/2in NPT male inlet
- 3/8in NPT female outlet
- Aluminum construction
- Black anodized finish
- Allstar Performance part
- MPN: ALL49775
- Sold individually
- Bolt-on installation






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