B1SF450 Speed Feed 450 LH Universal

One New Aftermarket Replacement Speed Feed 450 Left-Hand Universal Trimmer Head

The Speed Feed 450 is a high-capacity, bump-feed string trimmer head designed for straight-shaft gas-powered trimmers. Its quick-load design allows trimmer line to be loaded in 30 seconds or less, making it a popular upgrade for professional and homeowner use alike. This is the left-hand (LH) universal version and includes a full adapter kit with multiple arbor bushings and mounting studs to fit most major trimmer brands. Not for use with curved-shaft trimmers.

Kit Includes

• 3 Arbor Bushings: 10 x 1.25 LH (Gold), 10 x 1.00 LH (Green), 8 x 1.25 LH (Red)
• 1 Spacer
• 2 Mounting Studs: 7 x 1.00 LH (Yellow), 8 x 1.25 LH (Silver)

Specifications

• Head Diameter: 4-1/2 inch
• Thread Direction: Left-Hand (LH)
• Application: Straight-shaft trimmers, 25cc and larger
• Compatible Line Diameters: .065", .080", .095", .105", .120"

Compatible Brands and Models

Echo: SRM-140, SRM-200, SRM-210, SRM-225, SRM-230, SRM-250, SRM-260, SRM-261, SRM-265, SRM-266, SRM-266S, SRM-266T, SRM-266U, SRM-280, SRM-280S, SRM-280T, SRM-300, SRM-302, SRM-303, SRM-340, SRM-350, SRM-400 and other straight-shaft SRM models with 10mm x 1.25 LH arbor

Fits Husqvarna: Most straight-shaft gas trimmer models

RedMax: BC220DL, BC221DL, BC240DL, BC300DL, BC2300DL, BK235FL, BK345FL, BK435FL, BK530DL, BC17, BC23, BC32

Shindaiwa: C226S, T226S, C251, T251, C262S, T262XS, C262TS, T262TXS, C280TS, C302TS, T302TS, C302, C344, T302, T302X, T344 and other straight-shaft models

Fits Stihl: FS66, FS74, FS76, FS81, FS83, FS85, FS86, FS100, FS106, FS108, FS110, FS130, FS250 and other straight-shaft models with 10mm x 1.00 LH arbor

Also fits: Maruyama, Fits Honda, and other brands using 7mm x 1.00 LH, 8mm x 1.25 LH, or 10mm x 1.25 LH arbors on straight-shaft models

Note: For straight-shaft gas trimmers only. Not compatible with curved-shaft trimmers. Verify arbor thread size and direction before ordering.

Replaces Part Number(s):

A-B1SF450, A-B1SF450-AI

Aftermarket Interchange Numbers

Oregon 55-265; Echo/Shindaiwa OEM: 2882008000, 2882008001, 78890-21001, X047000580; Echo OEM: 99944200903

New aftermarket replacement part - not remanufactured, not used.