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3-Piece Oil Filter Thread Adapter Set 1/2-28 to 3/4-16 13/16-16 NPT

3-Piece Oil Filter Thread Adapter Set 1/2-28 to 3/4-16 13/16-16 NPT

SKU: NLT1I00188
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
This new three-piece black aluminum thread-adapter set converts a 1/2-28 internal thread to 3/4-16, 13/16-16, or 3/4 NPT external threads for compatible custom fluid-system projects.
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Product Overview

A remote filter head, test fixture, restoration, or custom oil-circuit project may have the right body but the wrong filter thread. This adapter set provides three common thread conversions so the builder can match the required male thread without replacing the complete housing.

Threads alone do not make a safe oil-system connection. Verify straight versus tapered thread, sealing method, shoulder engagement, bore size, pressure, temperature, material compatibility, filter bypass and anti-drainback needs, and flow direction. These are custom fittings, not vehicle-specific fitment.

Key Features & Performance

  • Three separate 1/2-28 internal-thread adapters
  • External options: 3/4-16, 13/16-16, and 3/4 NPT
  • Black anodized aluminum construction
  • Compact solution for compatible custom filter or fluid hardware

Common Uses

  • Adapting a custom remote filter mount
  • Building a shop test fixture
  • Matching an existing 1/2-28 threaded port to one of three common sizes

Technical Specifications

  • Product Type: Thread adapter set
  • Quantity: 3 adapters
  • Internal Thread: 1/2-28
  • External Threads: 3/4-16, 13/16-16 and 3/4 NPT
  • Material: Black anodized aluminum

Installation & Fitment

  • Identify straight and tapered threads with a gauge
  • Confirm sealing face or approved thread-seal method
  • Check full engagement without bottoming or cross-threading
  • Verify pressure, temperature, and flow requirements
  • Pressure-test the completed system while observing for leaks

Compatibility Notice

This is a universal or service item, not a guaranteed fit for every vehicle, machine, or job. Measure and compare all dimensions, connections, operating limits, and the intended system before purchase. Custom installation or professional setup may be required.

Frequently Asked Questions

Q: Are all three adapters the same? A: No. Each has a 1/2-28 internal thread and a different external thread.

Q: Can I use the same sealant on every thread? A: No. Straight threads may seal with an O-ring or face, while NPT seals differently. Follow the system design.

Q: Are these guaranteed for my vehicle? A: No. They are universal custom fittings selected by measured thread and operating requirements.

Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.

Part Summary

keywords: 1/2-28 oil filter adapter, 3/4-16 thread conversion, 13/16-16 filter adapter, 3/4 NPT aluminum adapter, three piece fluid fitting set

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.

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