Graco 101391 Str Spring Pin

Compatible Machines — Graco 101391 Spring Pin

• Graco 2:1 Ratio Standard Pumps (earlier style) — uses 207848 Repair Kit which includes the 101391 STR Spring Pin.
• Graco fluid-handling/pump assemblies that explicitly list 101391 in the parts diagram or service manual (verify by model/serial).
• Legacy Standard-series pump variants where a straight spring pin retains/aligns internal components (confirm in the exploded view).

Product Overview

The Graco 101391 STR Spring Pin is a straight spring pin used as a retention/alignment element in select Graco pump and fluid-handling assemblies. It helps maintain correct positioning of moving parts under load and vibration, and is included in certain Standard-series pump repair kits (e.g., 207848).

When to Replace

• Pin shows wear, deformation, looseness, or corrosion.
• During a scheduled overhaul using kits that include a new pin (e.g., 207848).
• Any time alignment/retention of linked components is compromised.

Installation Tips

• Confirm the orientation and seating depth per your model’s service manual.
• Inspect mating bores/shafts for wear before installing the new pin.
• Use appropriate drivers; avoid mushrooming or over-expanding the pin.

Frequently Asked Questions