Graco 218023 Diffuser Assembly - Aftermarket | Bedford 58-1506

Restore smooth spray patterns and stable atomization on Contractor-series airless guns. This aftermarket diffuser assembly matches the OEM interface for reliable fan formation and reduced spitting, helping techs recover predictable trigger response after routine service. Cross-referenced as Graco 218023 and supplied by Bedford as 58-1506, the unit installs quickly at the gun nose to refresh diffuser/seat function without modifying your setup.

Aftermarket Precision-Machined Contractor Duty

Why Choose This Diffuser Assembly

  • Restores diffuser/seat control to stabilize fan edges and coating laydown.
  • Direct aftermarket alternative engineered for the Contractor gun interface.
  • Drop-in replacement that supports fast bench service and leak checks.

Service cue: Verify tip guard alignment and gasket condition when installing the diffuser body for best results.

Typical Compatibility

  • Graco Contractor / Contractor PC airless spray guns that specify this diffuser assembly in their IPL.
  • Common on Graco RAC X guard setups used with LTX/FFLP SwitchTips in architectural and protective coatings.
  • Suitable across a wide range of Graco electric and gas airless sprayers that ship with Contractor-series guns.

Confirm against your gun’s Illustrated Parts List before ordering.

What This Product Fits

  • Graco Contractor Gun (legacy) and Contractor PC (current) families used on Pro/ProContractor models.
  • Typical sprayer platforms: Graco Magnum Pro series, Ultra/Ultra Max II, GMax, and similar rigs supplied with Contractor guns.
  • Guns configured with RAC X tip guards where the IPL lists the diffuser assembly by the OEM number below.

Listed by Bedford as “Diffuser Assembly - Contractor Gun.” See references for replacement details from Bedford and distributors.

Technical Specifications

Aftermarket Bedford 58-1506
OEM Graco 218023
FitsGraco Contractor / Contractor PC spray guns (verify IPL)
TypeDiffuser assembly (gun nose diffuser/seat)
MaterialPrecision-machined components with service-grade seals
FunctionControls flow at the gun outlet to shape pattern and reduce spitting
PressureUse within the gun/sprayer rated working pressure
BrandBedford Precision Parts (Aftermarket)

Torque the diffuser seat per your gun manual; inspect the gasket and guard threads during reassembly.

Installation Notes

  1. Relieve system pressure and engage the gun trigger lock.
  2. Remove tip & guard; unseat the existing diffuser assembly.
  3. Clean the nose threads and sealing faces; check for scoring.
  4. Install the new diffuser/seat squarely; tighten to spec per the gun manual.
  5. Reinstall guard and tip; pressure-test and verify fan stability.

Tip: If pattern tails persist, examine the tip orifice and replace the gasket before adjusting pressure.

When to Rebuild / Replace

  • Inconsistent fan or visible spitting at the start/stop of strokes.
  • Drips at the guard after tip replacement and cleaning.
  • Damaged nose threads or crushed gasket surfaces.
  • Difficulty maintaining target finish at normal pressure.

Bedford vs OEM Comparison

FeatureBedford Aftermarket (58-1506)OEM (Graco)
Fit & InterfaceDirect replacement for Contractor-series gunsFactory assembly for Contractor gun
PerformanceRestores spray control and pattern qualityFactory-matched control and pattern
AvailabilityIf in stock, ships from Bedford Precision Parts in Bedford Hill, New York.Ships via Graco distribution
ValueCost-effective service optionOEM program

FAQs

Yes. It’s an aftermarket alternative that cross-references the OEM number shown in the specifications and is intended for the Contractor-series gun interface.
Contractor and Contractor PC guns commonly supplied with many Graco airless sprayers. Always confirm your gun’s Illustrated Parts List before ordering.
Standard hand tools are typically sufficient. Follow the torque guidance in your gun manual and inspect the gasket and guard threads during reassembly.
Yes—Contractor-series guns with RAC X guards are the typical use case for this diffuser assembly. Verify guard condition and tip size selection.
If available, orders ship from Bedford Precision Parts in Bedford Hill, NY using your chosen carrier.