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Graco 165750 Regulator Housing

Use this Graco 165750 Regulator Housing when replacing a worn or damaged regulator body—confirm fit by matching the part number in your sprayer’s parts manual.

  • OEM housing only; internal regulator parts not included
  • For regulator/back-pressure assemblies on Graco industrial systems
  • Match 165750 in the exploded diagram before ordering
  • Relieve system pressure and inspect seals during installation

$437.61
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Overview & Compatibility

Compatible Machines

This Graco 165750 Regulator Housing is used as the body of a regulator/back-pressure valve assembly across multiple Graco industrial spray and fluid-handling systems. Graco does not publish a single, universal sprayer model list for this housing.

  • Fits systems that specify part 165750 in their regulator/back-pressure valve assembly diagram
  • Common in high-flow coating and plural-component setups (verify in your machine’s parts manual)

What This Part Does

Acts as the main body for the pressure-regulation assembly. It houses the internal components (e.g., spring, diaphragm, valve stem/seat) that control fluid pressure or back-pressure in the system.

  • Maintains stable spray pressure for consistent finish
  • Designed for OEM fit and sealing surfaces
  • Ideal replacement when the original housing is worn, corroded, or damaged

What’s Included / Not Included

Item Details
Included Housing (body) for the regulator/back-pressure assembly
Not Included Internal regulator parts (spring, diaphragm, valve stem/seat), seals, gauges, fittings

Fitment Guidance

  • Confirm by checking your equipment’s exploded parts diagram for the regulator/back-pressure assembly
  • Match the part number exactly and verify porting/orientation against your existing housing
  • Relieve pressure and follow safety procedures before removal/installation

Frequently Asked Questions

No. The housing is the body of the assembly. Pressure control requires the internal regulator components (spring/diaphragm/valve), which are not included unless specified by a separate kit.

Fitment is model-specific. Check your sprayer’s parts manual: if the regulator/back-pressure section lists part 165750 as the housing, it is compatible. If not, select the exact housing part number shown for your model.

It’s best practice to install fresh seals/O-rings and inspect the valve stem, seat, and diaphragm. Reusing worn internals can cause leaks or unstable pressure.

Relieve system pressure, clean mating surfaces, apply appropriate thread sealant where specified by the manual, and torque fasteners to the recommended values. After assembly, verify pressure set-point and check for leaks.

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