UT-21566 Homelite Trimmer - Overview
Diagrams for UT-21566
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Handle
Part #518674002
String Head Assembly
Part #000998265
Genuine OEM replacement part, This item is sold as a kit. This is the complete Stringhead Assembly for the Trimmers shown below. It is a dual line head. To install this part, slide it on the spindle or shaft of the Trimmer The kit contains two Spool Retainers to secure the Stringhead. The red one has left hand threads and the black one ha...Read mores right hand threads. It will depend on the model you have, on which Spool Retainer to use. The cutting line diameter used in this Stringhead is .095
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Screw (M4 x 14 mm)
Part #660967001
Front Handle Assembly
Part #308741002
Trimmer Screw (M6 X 20 Mm)
Part #660697002
A loose upper shaft or housing may be caused by a damaged or missing mounting screw. This black metal fastener has an M6 x 20 mm thread and a Torx-style head. Check the clamp, threaded hole, bracket, and nearby hardware before installing a replacement. Match the screw to the full tool model and parts diagram because its use may differ bet...Read moreween machines. Shut down the tool and prevent it from starting. Thread the screw by hand to avoid damage, then tighten it securely without crushing or cracking the parts it holds.
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Screw (m4 X 19 Mm)
Part #660968001
This is a genuine manufacturer-sourced replacement screw which is specially designed for use with Homelite and Ryobi handheld lawn and garden equipment. It is a standard hardware which has multiple applications based on the model of your tool, please refer to the appropriate diagrams for the correct location and use of this part. It is made of high-quality metal and it is sold individually.
Wing Nut (1/4-20)
Part #678034001
This is a genuine manufacturer-sourced part which is specially designed for use with Homelite handheld lawn and garden equipment. It is a high-quality replacement for a missing or a damaged wing nut that was originally installed on a new unit. The nut helps to secure the deflector guard, please make sure to refer to the appropriate diagra...Read morems of your model for the correct location and application of this hardware. Keep in mind this high-quality wing nut is made of durable metal and is sold individually.
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Crankcase Cover
Part #638337005
This is an authentic replacement part sourced directly from the manufacturer. The crankcase cover is commonly found in yard tools from Ryobi and Homelite, such as trimmers, blowers, pruners, and edgers. This part is made of metal, and is used in the short block assembly to house the crankcase. You may require an Allen wrench or screwdr...Read moreiver when replacing this item. The crankcase cover is provided as an individual replacement part.
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Heat Shield
Part #638442001
It is a genuine item that is supplied directly from the original equipment manufacturer for use with Ryobi and Homelite handheld lawn and garden equipment. This is an identical replacement for a missing or a faulty heat shield that was installed on a new unit. Please make sure to refer to the appropriate diagrams of your model for the cor...Read morerect location and application of this component. Keep in mind this high-quality part is made of durable metal and is sold individually. Note, the hardware to secure it is sold separately.
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Heat Dam
Part #518497001
It is a high-quality replacement part that is sourced directly from the original equipment manufacturer for use with Homelite and Ryobi handheld lawn and garden equipment. Heat dam acts as a spacer for carburetor allowing it to stay cool. It is made of durable plastic material and it is sold individually, please note gaskets and other components are all sold separately.
Rear Housing
Part #518504001
Decal-Warning
Part #984032001