Graco 162870 Packing - Aftermarket Replacement | Bedford 4-993

Restore piston sealing in the fluid section with a PTFE cup packing engineered for Graco airless sprayers. This aftermarket part replaces Graco 162870 and is cross-referenced by Bedford as 4-993, supporting reliable priming and pressure control after service.

Aftermarket PTFE Cup Industrial Duty

Why Choose This Packing

  • Direct interchange with the OEM reference for fast rebuilds and consistent sealing.
  • PTFE (Teflon) cup design offers low friction and solvent tolerance for coatings work.
  • Used in Graco pump lowers that specify a “162-870 Teflon cup packing” in the IPL.

Service cue: Replace mating seats and V-packings as required by your manual to maintain balanced wear and startup seal.

Typical Compatibility

  • Graco Ultra Max 695; Ultra Max II 695 & 795.
  • Graco LineLazer IV 3900 & 5900; LineLazer V 3900 & 5900.
  • Graco 7900 HD sprayers and other models whose parts lists call out this packing.

Always confirm by model/serial and Illustrated Parts List before ordering.

What This Product Fits

  • Ultra Max 695; Ultra Max II 695 & 795 (piston cup location).
  • LineLazer IV/V 3900 & 5900 striper pumps.
  • Selected industrial/contractor lowers listing “162-870 cup packing” in the manual (e.g., Monark 2:1).

If your unit isn’t shown, match by the OEM number in your sprayer’s parts manual.

Technical Specifications

Aftermarket Bedford 4-993
OEM 162870 (PTFE cup packing).
FitsUltra Max/Ultra Max II 695–795; LineLazer 3900/5900 IV & V; additional models calling out this cup.
TypeSingle PTFE cup packing for piston assembly.
MaterialPTFE (polytetrafluoroethylene) for low friction and chemical resistance.
FunctionSeals the piston to maintain prime, reduce bypass, and stabilize spray pressure.
PressureUse within the sprayer’s published working pressure; see your model data.
BrandBedford Precision Parts (Aftermarket).

System limits are defined by the lowest-rated component in your pump and hose set.

Installation Notes

  1. Relieve pressure and lock out air/electric per your service manual.
  2. Disassemble the lower; remove the old cup packing and clean the groove and piston.
  3. Inspect the piston rod and seat for scoring; replace worn parts as required.
  4. Install the new PTFE cup with the sealing lip oriented correctly; avoid twisting.
  5. Reassemble; prime and leak-check at low pressure before production use.

Tip: Pair new piston cups with fresh throat packings to maintain alignment and extend service intervals.

When to Rebuild / Replace

  • Loss of prime or pulsation after filter and tip checks.
  • Visible wear, flat spots, or cracking on the removed cup.
  • Material bypass into the wet cup or throat area.
  • Frequent pressure drop requiring repeated re-priming.

Bedford vs OEM Comparison

FeatureBedford Aftermarket (4-993)OEM (Graco)
Fit & InterfaceCross-referenced to OEM dimensions for listed lowersFactory packing per IPL
MaterialsPTFE cup for low friction and solvent resistanceOEM PTFE composition
Working PressureUse within equipment ratingDefined in model data
AvailabilityIf in stock, ships from Bedford Precision Parts in Bedford Hill, New York. Ships via Graco distribution
ValueCost-effective service solutionOEM program

FAQs

Yes. Bedford 4-993 is listed as the aftermarket replacement for the OEM reference shown above. :contentReference[oaicite:22]{index=22}
Ultra Max 695; Ultra Max II 695/795; LineLazer IV/V 3900/5900; and other Graco models whose Illustrated Parts Lists specify 162870. :contentReference[oaicite:23]{index=23}
PTFE (Teflon) cup packing designed for low friction and chemical resistance in pump lowers. :contentReference[oaicite:24]{index=24}
Graco pump documents (e.g., Monark 2:1 manuals) list “162-870 Teflon cup packing” at the piston. :contentReference[oaicite:25]{index=25}
If available, orders ship from Bedford Precision Parts in Bedford Hill, NY using your selected carrier/service. :contentReference[oaicite:26]{index=26}