Bedford 20-3983 is Graco 244958 HydraMax 300/350 Kit Aftermarket replacement

Graco 244-958 HydraMax 300/350 Pump Packing Repair Kit — AfterMarket by Bedford Precision Parts (20-3983)

This professional rebuild set is an AfterMarket by Bedford Precision Parts equivalent of the OEM Graco 244-958 (also shown as 244958). Bedford P/N 20-3983 is engineered for a true drop-in overhaul that restores prime, stabilizes pressure, and reduces bypass on HydraMax 300 and HydraMax 350 sprayers. 

Where it fits: Built specifically for Graco HydraMax 300/350 airless units that call out kit 244-958 in the service manual. Because Bedford machines to OEM dimensions, your existing rod, cylinder, and hardware stack up correctly during reassembly—no workflow changes or special tools required.

Where it’s used: Ideal for residential, commercial, and industrial coating jobs using latex, primers, block fillers, elastomerics, and other production materials. A freshly repacked pump maintains smooth flow to filters, hoses, and paint sprayer guns for consistent, professional finishes. 

• OEM-matched performance — Precision packings and seals help the pump build and hold pressure, supporting even atomization and cleaner edges.
• Leak & wear control — New packings reduce bypass, protect the rod/cylinder, and extend service intervals between overhauls.
• Cost-effective upkeep — Refresh the fluid section without replacing the entire pump; perfect for fleet maintenance programs of graco airless sprayer parts.
• Bedford reliability — Assembled in the USA and made to tight tolerances for dependable uptime. 

Pro install tips: Clean and inspect the rod, seats, and balls; replace any scored or pitted components. Pre-lube packings as specified, follow the correct stack order, and torque to spec. After reassembly, flush, prime, and pressure-test before returning the sprayer to production. Keeping filters clean protects the rebuilt pump and helps maintain finish quality. 

Outfitting your whole rig? Explore compatible accessories and service items at eRepairCenter—including pressure relief valve options, OEM-equivalent speeflo parts, durable wagner paint sprayer parts, a full catalog of graco paint sprayer parts, hard-to-find binks sprayer repair parts, and other essentials to keep projects moving.