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Graco 101946 Pin Cotter Sst

The Graco 101946 Pin Cotter (SST) is a durable stainless-steel locking pin designed to secure linkages and rods in heavy-duty Graco pump assemblies.

  • Material: Stainless Steel (SST)
  • Size: ~0.12" × 1.5"
  • Use: Retains rods and components under pressure
  • Fits: Graco Bulldog, King, President, Monark & Severe-Duty Pumps

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Overview & Compatibility for Graco 101946 Pin Cotter (SST)

Compatible Machines

This Graco 101946 Pin Cotter (stainless steel / SST) is referenced across the following pump families and models:

  • Graco Bulldog sanitary pump – Model 949444 (Series A)
  • Graco King pump – Model 220648 (Series B)
  • Graco President displacement pump – Model 224342 (Series A)
  • Graco President displacement pump – Model 224343 (Series A)
  • Graco Monark pump – Model 261630 (Series A)
  • Graco Severe-Duty Stainless Steel displacement pump – Model 223595 (Series C/E, via related kit)

Product Highlights

  • Part Number: 101946
  • Type: Pin Cotter / locking retainer
  • Material: Stainless steel (SST) for corrosion resistance
  • Typical Size (approx.): 0.12" (≈3.0–3.2 mm) diameter × 1.5" (≈38 mm) length
  • Purpose: Secures rods/linkages to prevent movement or disengagement under load
  • Use Case: Common in Graco displacement pump assemblies (tie-rod/connecting-rod retention)

Technical Specs

Manufacturer / Brand Graco
Part No. 101946
Description Pin Cotter, Stainless Steel (SST)
Approx. Dimensions Ø ~0.12" × L ~1.5" (≈3.0–3.2 mm × 38 mm)
Primary Function Locking / retaining pin for rods & linkages in pump assemblies
Corrosion Resistance Yes – stainless steel construction

Notes & Cross-References

  • Appears in multiple Graco pump parts lists and repair documentation.
  • Referenced with severe-duty stainless pump configurations and select repair kits (e.g., kit associations noted in manuals).
  • Keeping this Pin Cotter as a spare helps minimize downtime during routine service.

Frequently Asked Questions

Yes. The 101946 Pin Cotter is made from stainless steel (SST) for durability and corrosion resistance.

It is commonly listed around 0.12" diameter by 1.5" length (≈3.0–3.2 mm × 38 mm). Always verify against your machine’s parts list.

Examples include Graco Bulldog (Model 949444), King (Model 220648), President (Models 224342/224343), Monark (Model 261630), and Severe-Duty Stainless pumps (e.g., Model 223595 via kit). Check your exact model’s manual to confirm.

Insert fully through the mating hole, then bend the tails to lock. Replace if bent, worn, or corroded. Always depressurize and follow Graco safety procedures before service.

Match the part number (101946) in your machine’s illustrated parts list. If your model uses a kit, confirm whether the Pin Cotter is included or specified separately.

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