UT20046 Homelite Trimmer - Overview

Diagrams for UT20046

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Parts for the UT20046

Fuel Tank With Cap – Part Number: 308181004

Part #308181004

The Fuel Tank is an OEM replacement part. It is compatible with the models shown below. It includes the fuel lines, fuel cap and fuel filter. If you need to order the fuel tank bumpers, they are sold individually as part number 98792.

$6.40

Spring

Part #638033001

This OEM spring, also known as a recoil or rewind spring, is housed in a container and is used to retract the starter rope on various lawn equipment models. Over time and through use, the spring will eventually lose its tension, and will break. If your starter rope has no resistance when pulling it, the starter spring is likely broken. Me...Read more

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$7.65

Rope Kit

Part #530069232

The chainsaw starter rope is a three-foot-long white rope that is approved by the original equipment manufacturer, and which wraps around the recoil pulley and is pulled to start the engine. Installation is rated as "Easy" by customers and requires a screw driver, pliers, and torx screwdriver. If the rope breaks it should be replaced. Ref...Read more

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$6.40

Spring

Part #06713

Springs are used within outdoor power equipment to provide tension and shock absorption, depending on their application and use. This spring is designed for use within trimmers/brush cutters and is made to provide tension on the spool reel mechanism, and in some cases may be used to advance the line whenever portions of it are cut off. Th...Read more

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Trimmer String Head Adapter

★★★★★

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Part #678019002

Genuine OEM replacement part, this part is sold individually. This part is where the stringhead assembly is mounted on the Trimmers shown below. It attaches to the spindle. The thread mount on the spindle is a left hand thread.

$12.33

Chainsaw Spark Plug

Part #870170001

This spark plug is an authentic Craftsman replacement part, and is compatible with chainsaws. The spark plug produces a spark that ignites the fuel in the engine. A socket wrench will be needed to install or replace the spark plug. This part is made of ceramic with metal and is sold individually.

Gasket

Part #900954001

This crankcase cover gasket seals the crankcase cover of your lawn equipment engine, preventing air or fuel leaks and maintaining proper internal pressure. It is sized at 2 1/2 inches by 2 1/2 inches and is commonly found where the crankcase cover attaches to the engine block. You can tell if a crankcase cover gasket is broken if there is...Read more

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$6.40

Throttle Cable

Part #308055002

This is a genuine manufacturer sourced replacement throttle cable designed for use with handheld string trimmers. Throttle cable is connected to the carburetor and it stops the engine when you shift the lever to the full choke position. Please note the housing, trigger and screws are sold separately.

Fuel Cap

Part #300758006

Genuine OEM replacement part, this item is sold individually. This Fuel Cap is is on the fuel tank on the outdoor products shown below. This is a vented Fuel Cap. It includes a gasket inside the Cap.

Filter

Part #98760

The air filter in your trimmer keeps the engine running smoothly. It filters out dirt and debris from the air before it enters the engine, ensuring that clean air is used for efficient fuel combustion. This helps protect the engine and maintain its performance. If the air filter is clogged or damaged, it should be replaced to avoid reduce...Read more

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Spool And String (.080 In.)

Part #308044002

Air Box Cover

Part #518096001

This is a manufacturer approved replacement cover designed for use with gas string trimmers/pruners/brush cutters. The purpose of this cover is to secure air filter element which is sold separately and it protect internal parts like carburetor from dirt and debris. It is made out of plastic and it is sold individually. Replacing this part does not require any tools. It simply snaps into place.

Questions And Answers for UT20046

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J Martinez - For model number UT20046

July 14, 2026

Problem starting

Hi J, thank you for your inquiry. If the trimmer has old fuel in the tank, drain it completely and refill with a fresh 50:1 mix of unleaded gas and quality 2-cycle oil. Old fuel breaks down into a sticky varnish that clogs the carburetor passages and prevents starting. If the fuel is fresh, remove the air filter and spray a small burst of carburetor cleaner directly into the intake, then pull the starter cord. If it briefly fires and dies, the carburetor is clogged and needs to be cleaned. Also, remove the spark plug and inspect it for heavy carbon buildup, wet fuel, or a cracked insulator. Replace the spark plug, part number PS10018285, it is damaged or has heavy carbon buildup. Finally, check the fuel lines inside the tank for cracks, brittleness, or rot. A cracked fuel line draws in air instead of fuel and will prevent the engine from starting regardless of the condition of the other components. Glad to be of help!