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Baldwin Filters

Baldwin Filters AFG38D Air Filter Restriction Gauge with 90 Degree Brass Fitting

SKU CH-8R8T-M4FFM

Monitors air-filter restriction with a resettable gauge and includes a 90-degree brass fitting for direct intake mounting

  • Monitors filter condition with clear restriction gauge
  • Maintains peak reading until manually reset for accurate service timing
  • Mounts directly on air intake for immediate feedback
  • Includes 1/8-27 NPT fitting for secure installation
  • 90-degree brass fitting ensures durable, leak-free connection

Air Filter Restriction Gauge AFG38D

The Baldwin Filters AFG38D is an air filter restriction gauge designed for automotive intake systems. It mounts directly on the air intake to monitor filter condition. The gauge maintains the highest reading until manually reset, allowing technicians to see peak restriction levels. It suits fleet maintenance and workshop environments where filter service intervals are tracked.

Check 1/8-27 NPT Port and Mounting Space

Verify that your air intake system has a compatible 1/8-27 NPT threaded port for installation. The gauge includes a 90 degree brass fitting that requires clearance for the angled connection. Confirm the mounting location allows the gauge face to be read easily after fitment. Ensure the intake material can support the gauge weight without vibration damage.

Brass Fitting and Service Decal Included

The bundled 90 degree brass fitting provides a secure, corrosion-resistant connection to the intake port. Its angled design helps route the gauge away from tight engine bay obstacles. A service decal is also supplied for recording maintenance dates or restriction thresholds. These accessories simplify installation and support consistent filter monitoring practices.

Highlights

  • Monitors filter condition with clear restriction gauge
  • Maintains peak reading until manually reset for accurate service timing
  • Mounts directly on air intake for immediate feedback
  • Includes 1/8-27 NPT fitting for secure installation
  • 90-degree brass fitting ensures durable, leak-free connection

Specifications

BrandBALDWIN FILTERS

Questions about this item

Does the AFG38D come with the fitting and decal or must they be purchased separately?

The gauge includes a 1/8-27 NPT fitting, a 90 degree brass fitting and a service decal in the box.

How do I choose between the straight and 90 degree brass fittings for this gauge?

The AFG38D is supplied with the 90 degree brass fitting; no alternative fitting version is offered for this model.

What does the highest reading memory do when the gauge is mounted on the air intake?

It holds the peak restriction value until you manually reset it, so you can see the worst-case reading after a drive cycle.

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