Graco 551183 Pin, Dowel 1/8 X 1.25 18-8 Sst

Precision Alignment Pin for Reliable Valve Assembly

Compatible Machines

• Graco MD2 Dispense Valves
• Graco 2K Ultra-Lite Air-Operated Two-Component Dispense Valves
• Compatible with valve assemblies and repair kits that specify OEM part 551183.
• Always verify compatibility using your equipment's parts manual or exploded parts diagram before ordering.

Product Overview

The Graco 551183 Pin, Dowel 1/8 X 1.25 18-8 SST is a genuine OEM stainless-steel alignment pin used to accurately position and secure internal valve components during assembly. Manufactured from durable 18-8 stainless steel, it provides excellent corrosion resistance and maintains precise alignment for dependable valve operation in demanding industrial dispensing applications.

Measuring 1/8 inch in diameter and 1.25 inches in length, this dowel pin helps reduce component movement, supports consistent valve performance, and simplifies maintenance by ensuring proper fit within compatible Graco valve assemblies. It is commonly specified for MD2 dispense valves and select 2K dispensing equipment. :contentReference[oaicite:0]{index=0}

Key Features

• Genuine Graco OEM replacement dowel pin.
• Constructed from corrosion-resistant 18-8 stainless steel.
• Dimensions: 1/8 in. diameter × 1.25 in. length.
• Maintains accurate alignment of internal valve components.
• Supports reliable operation and long service life in compatible dispensing systems.

Why Replace This Dowel Pin?

A worn, bent, or damaged dowel pin can affect component alignment, increase internal wear, and compromise valve performance. Replacing it with the correct OEM part helps restore factory fit, maintain smooth operation, and reduce unnecessary downtime during maintenance.

Frequently Asked Questions