Graco 287825 Mark IV Repair Kit - Aftermarket Replacement | Bedford 20-2774

Restore the displacement pump on TexSpray Mark IV texture sprayers. This aftermarket **Mark IV Pump Repair Kit** replaces Graco 287825 and is cross-referenced by Bedford as 20-2774, providing packings, glands, and seals for reliable priming and pressure.

Aftermarket Precision-Machined Industrial Duty

Why Choose This Repair Kit

  • Direct aftermarket alternative mapped to the OEM reference for TexSpray Mark IV.
  • Includes key wear items - v-packings, glands, O-rings, spacers - to refresh pump sealing and stroke efficiency.
  • Helps recover prime, stabilize output, and reduce bypass after hours of texture work.

Service cue: Replace both throat and piston packings together to keep wear balanced and extend service life.

Typical Compatibility

  • Graco TexSpray Mark IV pump (displacement lower on Mark IV packages).
  • Systems and kits where the Illustrated Parts List specifies the pump repair kit number shown below.
  • Aftermarket cross-reference: Bedford 20-2774 replacement for the OEM kit.

Confirm against your sprayer’s IPL/serial series before ordering; parts vary by revision.

What This Product Fits

  • Graco TexSpray Mark IV texture sprayers (pump lower repair).
  • Mark IV displacement pumps identified in manuals where kit 287825 is called out.
  • Aftermarket listings confirming interchange: Bedford 20-2774. :

If your model isn’t explicitly listed, match by the OEM number in your parts manual.

Technical Specifications

Aftermarket Bedford 20-2774
OEM 287825 (Mark IV Pump Repair/Packing Kit).
FitsGraco TexSpray Mark IV displacement pump (see IPL).
TypePump repair/packing set for displacement lower
MaterialLeather v-packings with PTFE/O-rings, steel glands and spacers (per Graco service manual).
FunctionRestores sealing at throat and piston, maintaining prime and consistent output.
PressureUse within sprayer’s published working pressure; follow model specifications.
BrandBedford Precision Parts (Aftermarket).

System limits are set by the lowest-rated component in your installation.

Installation Notes

  1. Relieve pressure and lock out energy; flush the lower per your manual.
  2. Disassemble the displacement pump; note orientation of glands, packings, and spacers.
  3. Clean the cylinder sleeve and rod; inspect seat/ball and replace if worn.
  4. Install new throat and piston packings from the kit; lubricate if specified by OEM.
  5. Reassemble; prime at low pressure and leak-check before production use.

Tip: Replacing the inlet ball/seat at the same time prevents early bypass on high-viscosity materials.

When to Rebuild / Replace

  • Loss of prime or material weeping past the throat.
  • Erratic pressure or pulsation with a clean filter and strainer.
  • Visible packing wear, flattening, or leakage at the wet cup.
  • Reduced output after extended texture spraying cycles.

Bedford vs OEM Comparison

FeatureBedford Aftermarket (20-2774)OEM (Graco)
Fit & InterfaceMatches Mark IV displacement lower per IPLFactory kit for TexSpray Mark IV
ComponentsV-packings, glands, O-rings, spacers (kit contents class)OEM-specified packings and hardware
Working PressureUse within sprayer’s published ratingDefined by model technical data
AvailabilityIf in stock, ships from Bedford Precision Parts in Bedford Hill, New York.Ships via Graco distribution
ValueCost-effective service solutionOEM program

Cross-reference and fitment verified via Bedford listing and distributor/OEM references.

FAQs

Yes. Bedford 20-2774 is an aftermarket alternative cross-referenced to Graco 287825 for the Mark IV pump. :contentReference[oaicite:20]{index=20}
TexSpray Mark IV sprayers that list the OEM kit in their Illustrated Parts List—verify your exact series. :contentReference[oaicite:21]{index=21}
V-packings (throat/piston), male/female glands, O-rings, and related spacers/washers for the displacement lower. Refer to your manual for quantities. :contentReference[oaicite:22]{index=22}
Clean the sleeve and rod, install packings in the correct order, lubricate where specified, and test at low pressure before returning to service. :contentReference[oaicite:23]{index=23}
If available, orders ship from Bedford Precision Parts in Bedford Hill, NY using your selected carrier/service. :contentReference[oaicite:24]{index=24}