Husqvarna 596009278 20" Chainsaw Guide Bar HL250-78 – .325" Pitch, .050" Gauge, Replacement Chainsaw Guide Bar

Part Number: 596009278
Category: Husqvarna Chainsaw Replacement Parts & Accessories
Type: Replacement 20-Inch Chainsaw Guide Bar

The Husqvarna 596009278 20" Chainsaw Guide Bar HL250-78 is a replacement cutting system component designed for compatible Husqvarna chainsaws. Featuring a 20-inch bar length, .325-inch chain pitch, and .050-inch gauge, this guide bar supports proper saw chain guidance and cutting performance during woodcutting, tree maintenance, and forestry applications.

Product Specifications

• Part Number: 596009278

• Brand: Husqvarna

• Product Type: Chainsaw Guide Bar

• Component Type: Replacement Chainsaw Cutting Bar

• Guide Bar Length: 20 Inches

• Chain Pitch: .325 Inch

• Chain Gauge: .050 Inch

• Guide Bar Designation: HL250-78

• Application: Chainsaw Cutting System

• Function: Saw Chain Guidance and Support

• System: Chainsaw Bar and Chain Assembly

• Equipment Compatibility: Select Husqvarna Chainsaws

• Condition: New

Features & Benefits

• Replacement Husqvarna 20-inch chainsaw guide bar

• Features a 20-inch nominal cutting bar length

• Designed for compatible .325-inch pitch saw chains

• Supports .050-inch gauge chain drive links

• Identified by the HL250-78 guide bar designation

• Helps guide and support the saw chain during cutting operations

• Provides a replacement for worn, bent, damaged, or excessively worn guide bars

• Supports proper chain movement when installed with compatible cutting components

• Helps maintain consistent cutting performance during woodcutting applications

• Suitable for routine chainsaw maintenance and cutting system servicing

• Designed for integration with appropriately matched Husqvarna chainsaw configurations

• Supports proper saw chain positioning within the guide bar groove

• Helps restore cutting system functionality when replacing a damaged guide bar

• Suitable for professional tree care, forestry, and property maintenance applications

• Practical replacement component for chainsaw owners and equipment repair technicians

Applications

• Compatible Husqvarna chainsaws

• Chainsaw guide bar replacement

• 20-inch chainsaw cutting systems

• .325-inch pitch saw chain applications

• .050-inch gauge saw chain configurations

• Tree cutting and maintenance

• Firewood cutting

• Limb and branch removal

• Forestry and woodland maintenance

• Property and land clearing

• Professional arborist equipment maintenance

• Chainsaw cutting system repair

• Replacement of worn or damaged guide bars

• Routine chainsaw bar and chain servicing

Important Notes

• Verify part number 596009278 before ordering

• Guide bar length is 20 inches

• Chain pitch specification is .325 inch

• Chain gauge specification is .050 inch

• Guide bar designation is HL250-78

• This listing is for a replacement chainsaw guide bar, not a complete chainsaw

• Confirm compatibility with your specific Husqvarna chainsaw model and product number

• Do not assume compatibility with all Husqvarna chainsaws that use a 20-inch guide bar

• Verify the required guide bar mounting pattern, tail configuration, and oiling hole arrangement

• Confirm compatibility with the chainsaw's drive sprocket and chain pitch

• Use only a saw chain with the correct .325-inch pitch and .050-inch gauge

• Verify the required chain drive link count before ordering a replacement chain

• Do not determine chain compatibility from guide bar length alone

• Confirm whether the HL250-78 designation corresponds to the required cutting system configuration for your chainsaw

• Verify whether the guide bar is supplied separately or with a chain or other accessories

• Do not assume a saw chain, mounting hardware, or additional components are included unless specified by the manufacturer

• Follow the chainsaw manufacturer's installation and maintenance instructions

• Shut off the engine or motor and allow all moving components to stop before servicing

• Disconnect the spark plug wire or remove the battery where applicable before replacing cutting components

• Wear appropriate cut-resistant gloves when handling the guide bar and saw chain

• Inspect the drive sprocket, chain tensioning mechanism, and bar mounting components for wear or damage

• Ensure the guide bar is correctly seated and securely mounted

• Adjust saw chain tension according to manufacturer specifications

• Verify proper chain lubrication before operating the chainsaw

• Inspect the guide bar groove and oil passages regularly for debris or obstructions

• Check the guide bar for excessive rail wear, bending, cracking, or other damage

• Do not operate a chainsaw with an improperly installed guide bar or damaged cutting components

• Follow all chainsaw safety procedures, including kickback prevention practices and appropriate personal protective equipment

• Confirm current specifications, fitment, and included components before ordering