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Graco 104488 Screw Cap Sch

The Graco 104488 Screw Cap (SCH) is a genuine OEM replacement part designed for secure, leak-free assembly in Graco fluid handling and transfer systems. Built for durability and precise fit.

  • Part Number: 104488
  • Type: Screw Cap – SCH variant
  • Compatible Machines: Graco T1, T2, and T3 Transfer Pumps
  • Material: High-strength corrosion-resistant steel
  • Function: Ensures tight sealing and component stability under pressure

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Part Overview: Screw Cap 104488 (SCH)

The Screw Cap – part 104488 is a genuine OEM fastener engineered for secure assembly in select Graco equipment. Built to meet factory specifications, it maintains mechanical integrity in demanding fluid-handling and spray systems.

Compatible Machines

  • Graco T1 Transfer Pump series
  • Graco T2 Transfer Pump series
  • Graco T3 Transfer Pump series
  • Graco Air-Driven Transfer / Fluid Handling Units using “SCH” cap variant

Key Specifications & Features

Part Number 104488
Designation Screw Cap, SCH series variant
Main Function Secures components in transfer pump/assembly, ensuring correct fit and torque retention
Material / Finish High-strength corrosion-resistant alloy (factory OEM spec) :contentReference[oaicite:1]{index=1}
Use Case Industrial fluid transfer, pressurized pump systems, coating rigs

Why This Screw Cap Matters

  • Correct fitment: Ensures the assembly is built exactly to factory spec—avoids leaks or premature failure.
  • Durable construction: Designed for environments with vibration, pressure cycling and fluid exposure.
  • OEM specification: Using the exact part avoids compatibility issues and simplifies maintenance logistics.

Installation & Maintenance Tips

  1. Fully depressurize the system before disassembly or installation of the screw cap.
  2. Clean and inspect the seating surface and threads—look for damage, corrosion or wear.
  3. Apply appropriate lubricant to the threads if required by the equipment manual, then torque to the manufacturer’s specification.
  4. During scheduled maintenance, inspect the cap for signs of loosening or misalignment; replace if thread integrity or head condition is compromised.

Frequently Asked Questions

While the dimensions may fit other systems, it’s designed to match Graco’s thread type, torque and sealing requirements. Using it outside of those specifications may lead to misfit or performance issues.

It depends on usage and operating conditions. Inspect during each major service interval. Replace immediately if there are signs of stripped threads, head damage, or loosening under load.

An under-torqued cap may loosen over time, leading to mechanical misalignment, fluid leaks or component stress. Always follow manufacturer’s torque guidelines.

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