Chainsaw bar nut kit STIHL 00008905005 — replacement parts for chainsaws

Replacement bar nut kit STIHL 00008905005 is a set of original-style components designed to secure the guide bar and chain on compatible STIHL chainsaws. Intended as a maintenance and repair part, this kit restores proper clamping and alignment after bar or chain service, helping maintain safe and reliable operation. The parts fit into the saw’s bar mounting area and are used whenever the guide bar is removed or adjusted.

Advantages

The kit provides durable metal hardware that matches the dimensions and fastening function required by the chainsaw bar assembly. Using this dedicated bar nut kit reduces the risk of improper fit, minimizes bar movement under load, and helps ensure consistent chain tensioning. The parts are suitable for routine replacement during maintenance and help maintain the saw’s mechanical integrity over time.

Suitable for

• Replacing worn or damaged bar nuts during routine chainsaw maintenance
• Securing the guide bar after chain replacement or adjustment
• Homeowner and professional repair of compatible STIHL chainsaws

Key specifications

• Type: bar nut kit for chainsaw guide bar fastening
• Material: metal fastening components designed for durability
• Function: secures guide bar and maintains proper chain tension
• Application: maintenance and replacement during bar or chain servicing

How to use

Before installation, ensure the chainsaw is switched off and the spark plug or battery is disconnected according to the manufacturer’s safety instructions. Remove the guide bar and old hardware, inspect the mounting studs and surrounding components for wear or damage, then fit the new bar nut kit in place. Reinstall the guide bar and chain, adjust chain tension to the correct specification and tighten the bar nuts to the recommended torque. Verify chain alignment and test run at low throttle to confirm secure fastening.

Usage recommendations

Use original or compatible replacement parts and follow the chainsaw manufacturer’s maintenance schedule. Replace the bar nut kit whenever threads are stripped, nuts are deformed, or when repeated loosening occurs under normal use. Regular inspection during service prevents unexpected loosening and contributes to safe operation.