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Homelite ST185 (UT-15039-B) String Trimmer

 Homelite ST185 (UT-15039-B) String Trimmer Parts

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 Fig # Img Part Name Availability Price
A2
Nut (St-175C & St-175Bc)
Nut (St-175C & St-175Bc)
Part #: UP04146
Ships in 8 - 14 business days
 $2.14
Add To Cart
A3
Plate- Indicating Obsolete - Not Available
Part #: UP04266
Discontinued
N/A
A4
Housing-Lower Bearing Obsolete - Not Available
Part #: A04457A
Discontinued
N/A
A5
Switch- Toggle Obsolete - Not Available
Part #: UP04261
Discontinued
N/A
A6
Screw-8-16 X 3/4"
Screw-8-16 X 3/4" Obsolete - Limited Quantity
Part #: 82536
In stock
1 available
 $0.99
Add To Cart
A7
Handle Grip Assembly Obsolete - Not Available
Part #: A00879
Discontinued
N/A
A9
Line- Replacement (.080 Dia.) (100 Ft.) Obsolete - Not Available
Part #: DA97952B
Discontinued
N/A
A10
Decal-Starting Instructions Obsolete - Not Available
Part #: UP04130
Discontinued
N/A
A12
Housing- Driveshaft Obsolete - Not Available
Part #: A00112C
Discontinued
N/A
A14
Decal-Warning
Decal-Warning
Part #: 983751001
Ships in 8 - 14 business days
 $1.71
Add To Cart
A15
Cable- Throttle
Cable- Throttle Obsolete - Not Available
Part #: A03006
Discontinued
N/A
A16
Hex Nut
Hex Nut
Part #: 81267
In stock
2 available
 $2.14
Add To Cart
A17
Washer (1/4")
Washer (1/4")
Part #: 83061
In stock
9 available
 $2.06
Add To Cart
A18
Handle Bar Clamp
Handle Bar Clamp
Part #: 099075001007
Note: Quantity of 2 needed for whole clamp
In stock
10 available
 $2.99
Add To Cart
A19
Screw (1/4-20 X 1") Obsolete - Not Available
Part #: 88078
Discontinued
N/A
Fig #ImgPart NameAvailabilityPrice
A20
Screw (1/4-20 X 1 1/2") Obsolete - Not Available
Part #: 88071
Discontinued
N/A
A21
Driveshaft-Flexible
Driveshaft-Flexible
Part #: 98818
In stock
5 available
 $15.72
Add To Cart
A22
Handle Bar Obsolete - Not Available
Part #: A97709A
Discontinued
N/A
A23
Grip Obsolete - Not Available
Part #: 94474B
Discontinued
N/A
A25
Screw- (4 Mm X 25 Mm)
Part #: 80864
Ships in 8 - 14 business days
 $6.09
Add To Cart
A26
Screw (1/4-20 X 1") Obsolete - Not Available
Part #: 88078
Discontinued
N/A
A27
SCREW-Mach. Hex Hd. (10-24 X 3/8")
Part #: 80869
Ships in 8 - 14 business days
 $0.99
Add To Cart
A28
Washer- Thrust Obsolete - Not Available
Part #: 98838
Discontinued
N/A
A29
Bearing- Ball
Bearing- Ball
Part #: UP05589
In stock
1 available
 $6.26
Add To Cart
A30
Spacer- Bearing Obsolete - Not Available
Part #: 98839
Discontinued
N/A
A31
Ring- Retaining
Part #: 98799
Ships in 8 - 14 business days
 $2.14
Add To Cart
A-32
Washer, Flanged 7/16 Obsolete - Not Available
Part #: UP07278
Discontinued
N/A
A34
Washer- Cupped
Washer- Cupped
Part #: 98836
In stock
3 available
 $7.43
Add To Cart
A35
Nut- Hex Locking (R.H.)
Nut- Hex Locking (R.H.)
Part #: UP03492
In stock
3 available
 $3.99
Add To Cart
A37
Spool Retainer (Black-RH Thread)
Spool Retainer (Black-RH Thread)
Part #: 308042002
In stock
25+ available
 $12.26
Add To Cart
Fig #ImgPart NameAvailabilityPrice
A38
Spool & String (Dual Line) Obsolete - Not Available
Part #: DA98912B
Discontinued
N/A
A39
Spring
Spring
Part #: 06713
In stock
25+ available
 $3.99
Add To Cart
A40
Housing And Eyelet
Housing And Eyelet
Part #: 099068001005
In stock
25+ available
 $6.68
Add To Cart
A41
Connector- Drive
Connector- Drive
Part #: 98849
In stock
4 available
 $13.41
Add To Cart
A43
Nut (10-32) Obsolete - Not Available
Part #: UP06646
Discontinued
N/A
A44
Blade- Cut-Off Obsolete - Not Available
Part #: 4785
Discontinued
N/A
A45
SCREW-Mach. Hex Hd. (10-24 X 3/8")
Part #: 80869
Ships in 8 - 14 business days
 $0.99
Add To Cart
A46
Bracket- Hanger
Bracket- Hanger
Part #: A94442
Ships in 8 - 14 business days
 $7.98
Add To Cart
A47
Thumb Screw Obsolete - Not Available
Part #: 82260
Discontinued
N/A
800
Zama Obsolete - Not Available
Part #: A03003
Discontinued
N/A
801
Repair Kit
Repair Kit
Part #: A03979
In stock
5 available
 $23.95
Add To Cart
802
Gasket/Diaphragm Kit
Gasket/Diaphragm Kit Obsolete - Limited Quantity
Part #: A03980
In stock
3 available
 $11.60
Add To Cart
803
Primer Bulb 3/4" OD w/o flange
Primer Bulb 3/4" OD w/o flange
Part #: UP04803
In stock
25+ available
 $6.10
Add To Cart
804
Primer Base (Aluminum) Obsolete - Not Available
Part #: A01194
Note: Primer Base kits are not interchangeable.
Discontinued
N/A
805
Primer Base (Plastic) Obsolete - Not Available
Part #: A03062
Note: Primer Base kits are not interchangeable.
Discontinued
N/A
Fig #ImgPart NameAvailabilityPrice
806
Swivel Kit
Part #: A00289
Ships in 8 - 14 business days
 $2.74
Add To Cart
807
Walbro Obsolete - Not Available
Part #: A03002
Discontinued
N/A
808
Repair Kit Obsolete - Not Available
Part #: A02665
Discontinued
N/A
809
Gasket/Diaphragm Kit
Gasket/Diaphragm Kit
Part #: A00285A
In stock
8 available
 $11.52
Add To Cart
810
Swivel Kit
Part #: A00289
Ships in 8 - 14 business days
 $2.74
Add To Cart
811
Walbro Primer Bulb
Walbro Primer Bulb
Part #: UP04802
In stock
15 available
 $4.14
Add To Cart
812
Primer Base Obsolete - Not Available
Part #: A01200A
Discontinued
N/A
813
Carburetor Kit
Carburetor Kit
Part #: A04445A
In stock
7 available
 $51.48
Add To Cart

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Trimmer Parts

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This video explains how to properly winterize power tools and machines for winter storage, increasing the life and performance of seasonal tools.

Line Trimmers 101
Line Trimmers 101

This article explains the basic types and features of line trimmers, and it also offers purchasing guidelines for line garden trimmers.

Lawn and Garden Machines and Power Tools
Lawn and Garden Machines and Power Tools

This article lists the major categories of lawn and garden tools and machines, explaining the basic applications, types, and features of each.

How to Remove a Trimmer Clutch

This video explains how to remove the clutch from most line and string trimmers. Tips are provided for removing tricky clutch drum screws.

Discussion
Discussion for the Homelite ST185 (UT-15039-B) String Trimmer

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  • Subject:
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  • Comment:
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joeirwin
Question: Plastic Base Where Fuel Leak

joeirwin

when u try to start it it sprays fuel out where hose goes into plastic prime ball base
Grant
Question: Compression

Grant

I have a homelite st-185 and i was wanting to know how much compression should it have? My test shows i have 60lbs is that with in spec ?
UtahAV
Reply: Compression

UtahAV

Hi Grant,

Compression on a 2-cycle trimmer engine should be between 70psi and 120psi. 60psi is low. That would indicate a worn cylinder and piston rings.

I hope this helps,

-UtahAV
-Mark
Grant
Reply: Compression

Grant

Thanks mark that helps alot, but do you know if there are rebuilt kits?
Russell
Question: Primer Bulb

Russell

I have a homelite st285bc model. It shows 3 primer bulbs in stock. How do I determine which one of these is the right part? The primer bulb I have is half inch inside diameter by half inch high.
Mitch
Question: Removing Clutch?

Mitch

I have a Homelite ST185 Trimmer. I have removed the outer part of the clutch. How do I get the inner part off?
James R. Brown
Question: ST-185 Homelite Trimmer

James R. Brown

I have a ST-185 Homelite trimmer I replaced the primer bulb and it will not pick up fuel. When you pump it, air bubbles will pump out of the filter but it won`t pick up fuel to the carb. What`s next?
carl
Reply: ST-185 Homelite Trimmer

carl

replace filter !! and check that the fuel lines are still good
shawn
Question: Very Weak Spark

shawn

The spark plug has a very weak spark, is the ignition module bad?
K R
Question: Homelite St185

K R

I have a Homelite st185 line trimmer the pull rope broke. I'm trying to fix but can't get the clutch cover and clutch off. Is there a trick or special tool needed? If I get it off is there a trick to replacing the starter rope? Thanks.
Brad
Reply: Homelite St185

Brad

It takes a Torx screwdriver to take out the bolt in the center of the clutch then the clutch drum pulls off, you will have to put a piston stop in the engine( if you don't have one, take out spark plug and stuff a rope into the cylinder being careful not to lose the rope.) then with a brass drift the clutch plates unscrew with a light tap.
Accessories
Accessories for the ST185

Mix Oils:
See more mix oils 
6450025
Power Blend Ultimate 2-Stroke Oil 6.4 oz.
$3.99

T-00745
2-Stroke Oil w/ Stabilizer 50:1 Ratio 2.6 fl.oz
$3.99

80036
Shindaiwa One Engine Oil
$2.99

fancyboxy