Homelite 205370001 Upper Boom Assembly with Top Detent for Ryobi String Trimmers – Replacement Trimmer Shaft Component

Part Number: 205370001
Category: Homelite Lawn & Garden Equipment Replacement Parts
Type: Replacement String Trimmer Upper Boom Assembly with Top Detent

The Homelite 205370001 Upper Boom Assembly is a genuine OEM replacement shaft component designed for compatible Ryobi gasoline-powered string trimmers and brush cutters. Featuring an upper boom configuration with a top detent connection, this assembly forms part of the trimmer's shaft system and provides a connection point for compatible lower boom attachments. Designed for select Ryobi RY251PH, RY252CS, RY253SS, RY254BC, and RY4CCS models, the Homelite 205370001 provides a replacement for bent, cracked, damaged, or worn upper boom assemblies. Its OEM construction supports proper fit and dependable operation in compatible outdoor power equipment.

Product Specifications

• Part Number: 205370001

• Brand: Homelite / Ryobi

• Product Type: Upper Boom Assembly

• Component Type: String Trimmer Shaft Assembly

• Part Classification: Genuine OEM Replacement Part

• Assembly Position: Upper Shaft / Boom

• Connection Configuration: Top Detent

• Compatible Equipment: Select Gasoline-Powered String Trimmers & Brush Cutters

• Compatible Equipment Brand: Ryobi

• Selected Models: RY251PH, RY251PHVNM, RY252CS & RY252CSVNM

• Additional Models: RY253SS, RY253SSVNM, RY254BC & RY254BCVNM

• Additional Applications: RY25CSEMCVNM, RY4CCS, RY4CCSVNM, RY4CSS & RY4CSSVNM

• Related Boom Clamp Assembly: Homelite 315386001

• Related Curved Shaft Lower Boom: Homelite 205371001

• Related Straight Shaft Lower Boom: Homelite 205372001

• UPC: 649226387436

• Application: String Trimmer Shaft Replacement & Maintenance

• Quantity: 1 Upper Boom Assembly

• Condition: New

Features & Benefits

• Genuine Homelite 205370001 replacement upper boom assembly

• Designed for compatible Ryobi string trimmers and brush cutters

• Features a top detent connection for compatible shaft configurations

• Supports proper alignment and connection of the trimmer shaft system

• OEM replacement construction provides dependable fit

• Helps restore shaft functionality when the original boom becomes damaged

• Suitable for replacing bent, cracked, worn, or broken upper boom assemblies

• Supports routine outdoor power equipment repairs and maintenance

Applications

• Ryobi RY251PH and RY251PHVNM string trimmers

• Ryobi RY252CS and RY252CSVNM curved shaft trimmers

• Ryobi RY253SS and RY253SSVNM straight shaft trimmers

• Ryobi RY254BC and RY254BCVNM brush cutters

• Select Ryobi RY25CSEMCVNM trimmers

• Compatible Ryobi RY4CCS and RY4CCSVNM trimmers

• Select Ryobi RY4CSS and RY4CSSVNM trimmers

• String trimmer upper shaft replacement

• Equipment specifying Homelite 205370001 upper boom assemblies

Important Information

• Verify Homelite part number 205370001 before ordering.

• This listing includes one replacement upper boom assembly, not a complete string trimmer.

• Designed for compatible Ryobi gasoline-powered trimmers and brush cutters.

• Features a top detent shaft connection.

• Parts diagrams identify the related boom clamp as 315386001.

• Compatible curved and straight lower boom assemblies are separate components.

• Exact shaft dimensions were not reliably confirmed.

• Compatibility may vary by manufacturing number and production revision.

• Some newer repair sheets identify different upper boom assemblies; verify the exact part number before purchasing.

• Confirm compatibility using your equipment model number, manufacturing number, and illustrated parts diagram.

• Inspect the shaft connections, boom clamp, and locking mechanism for wear or damage.

• Shut off the engine, allow it to cool, and disconnect the spark plug wire before servicing.

• Follow the equipment manufacturer's installation and safety instructions.