SRIAOO PAS coupler knob assembly, front view, ideal replacement part.
SRIAOO bolt 9108506040 close-up highlighting secure fastening.
SRIAOO circular washer V304000040, shows durable hardware.
SRIAOO Echo PAS-225 compatibility label on product image.
SRIAOO Shindaiwa compatibility badge on product.
SRIAOO brass material knob detail emphasizing durability.
SRIAOO easy installation thumb screw in action.

SRIAOO

SRIAOO PAS Coupler Knob Assembly – Replacement for Echo/Shindaiwa PAS

High-performance patio lawn and garden made for confident daily results

$26.00

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Why customers choose PatioZora Garden

Overview

The SRIAOO PAS Coupler Knob Assembly replaces worn or missing fasteners on compatible Echo and Shindaiwa powerheads. This brass knob, paired with the included bolt and circular washer, helps maintain a secure connection between the powerhead and attachment, supporting steady operation during trimming and brush-cutting tasks.

Designed as a targeted replacement, it references common part numbers V299000660, 9108506040, and V304000040. Before replacing, check your model and serial numbers to confirm a precise fit and avoid compatibility issues.

Key benefits and compatibility

The brass construction offers a durable profile that resists wear in active garden environments. An ergonomic, thumb-friendly design lets you tighten or resecure the knob quickly, reducing downtime during field repairs.

  • Wide compatibility with Echo SRM models such as SRM-210SB, SRM-211SB, SRM-225SB, SRM-260SB, SRM-261SB
  • Compatible with Echo PAS systems including PAS-225, PAS-230, PAS-266, and PAS-280
  • Also suitable for select Shindaiwa powerheads in the PAS family

Material and construction

Constructed from durable brass, this knob fastener is built to endure regular attachment and removal cycles, helping you keep tools in service longer between replacements.

Easy installation

With an M6 thread and an ergonomic thumb screw, installation is straightforward for both DIY enthusiasts and professional technicians. The design supports quick tightening and secure lodging of the powerhead connection.

What’s included

  • 1 x PAS Coupler Knob Assembly (replaces V299000660)
  • 1 x Bolt (replaces 9108506040)
  • 1 x Circular Washer (replaces V304000040)

Why choose SRIAOO

Choosing this replacement offers a practical, cost-conscious way to restore a dependable attachment point without replacing your entire tool. If you have questions, our team is ready to help you confirm compatibility and support your maintenance workflow.

FAQ

Q: What tools is the SRIAOO PAS Coupler Knob Assembly compatible with?

A: Compatible with Echo PAS-225 and other PAS systems, plus select Shindaiwa models; verify your part numbers before purchasing to ensure the fit.

Q: What is included in the package?

A: The package includes 1 PAS coupler knob assembly, 1 bolt, and 1 circular washer for a complete replacement set.

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