Splice Plates, Sprockets, Pulleys and Parts

Garage door openers with chain drives have a sprocket attached to the top of the opener motor. As time passes, the sprocket's grooves or teeth can wear, then the chain could skip or jump when the opener raises the door. At the first sign of wear, replace the sprocket to prolong the chain and motor’s life. 

Whether you are a do-it-yourselfer (DIY) or a professional installer, PartsReplacementStore stocks a large assortment of the parts you require for your garage door system along with fast shipping to help you get the project done. We have a variety of garage door extension spring pulleys in several sizes with bolt and shaft mounting. Sheave pulley kits include the fastener, pulley and strap.

Showing all 44 Products
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Allstar Rear Idler Sprocket
DescriptionThis idler sprocket will keep the garage door running on track with its sturdy sturdy...
$3.27
Sprocket 30 tooth, 1" bore, 1/4" keyway 41B30
DescriptionThis sprocket is for use with #41 roller chains. Replacement Steel Sprocket This replacement steel...
$23.77
Sprocket-65 Chain, 9 tooth, 5/8" bore
DescriptionThe replacement steel roller chain sprocket is designed for #65 chains. Replacement Steel Roller Chain...
$14.97
Sprocket 40 tooth, 1" bore, 1/4" keyway 50B40
DescriptionSteel 40 tooth sprockets with hub have a standard 1" bore. Steel 40 Tooth SprocketsThese...
$31.56
Napoleon 5 5/8th Inch Flat End Bearing Plate 2002 Part # GDH 3-1-2
DescriptionPart # GDH 3-1-2 Garage Door Flat End Bearing Plate. Designed to support the end...
$3.52
Allstar 100004 Front Idler Pulley
Description This Allstar molded plastic pulley will keep the car garage door running smoothly. Replacement...
Sold Out
Linear HBT Pulley & Bracket
Description Linear HBT Pulley & Bracket
$6.06
Linear HBT Drive Sprocket
Description Linear HBT Drive Sprocket
$4.28
Genie Chain Pulley
Description Genie Chain Pulley
$1.53
Allstar CDO Clutch Spring
Description Allstar CDO Clutch Spring
$4.73
Linear HCI Drive Sprocket
Description Linear HCI Drive Sprocket
$6.41
Liftmaster Square Rail Idler Pulley
Description Liftmaster Square Rail Idler Pulley
$2.41
Liftmaster Dual Gear & Sprocket Assembly
Description Liftmaster Dual Gear & Sprocket Assembly
$45.66
Liftmaster Drive Sprocket Kit
Description Liftmaster Drive Sprocket Kit
$18.13
Challenger Door Arm Assembly
Description Challenger Door Arm Assembly
$18.07
Allstar CDO Door Arm Assembly
Description Allstar CDO Door Arm Assembly
$49.13
Liftmaster Screw Drive Rail Sprocket Coupling
Description Liftmaster Screw Drive Rail Sprocket Coupling
$4.38
Liftmaster Chain Pulley Bracket
Description Liftmaster Chain Pulley Bracket
$10.95
Liftmaste Gear & Sprocket assembly for ATS211X & ATS2113X
Description Liftmaste Gear & Sprocket assembly for ATS211X & ATS2113X
$38.77
Genie Sprocket Saddle
Description Genie Sprocket Saddle
$7.25
Genie Pulley Support Kit
Description Genie Pulley Support Kit
$10.92
Liftmaster Cable Pulley Bracket Assembly
Description Liftmaster Cable Pulley Bracket Assembly
$15.02
Genie Belt Pulley
Description Genie Belt Pulley
$4.09
Allstar CDO Clutch Plate
Description Allstar CDO Clutch Plate
$5.86
Genie Opener Sprocket
Description GO 27191A Genie Opener Sprocket
$7.97
Sprocket 65 chain, 27 tooth, 3/4" bore
DescriptionThe roller chain steel sprocket is for #65 chains. Roller Chain Steel SprocketSpecifications of the...
$16.80
Sprocket 65 Chain, 10 tooth, 3/4" bore
DescriptionThe 10 tooth steel sprocket makes an excellent replacement part for #65 chains. 10 Tooth...
$16.41
Sprocket 36 tooth, 1 1/4" bore, 1/4" keyway
DescriptionThis roller chain sprocket is manufactured using top quality steel. 36 Tooth Roller Chain SprocketThis...
$22.59
Sprocket 30 tooth, 1-1/4" bore, 1/4" Keyway
DescriptionThe 30 tooth replacement sprocket is for use with the #50 roller chain. 30 Tooth...
$27.22
Sprocket 30 tooth, 1" bore, 1/4" keyway 65B30
DescriptionSteel roller chain sprocket 65B30 is for use with #65 roller chains. 30 Tooth SprocketThis...
$22.98
Sprocket 30 tooth, 1" bore 50B30
DescriptionThe 30 tooth sprocket is manufactured for #50 roller chain. Steel Roller Chain Sprocket #50...
$27.22
Sprocket 24 tooth, 1" bore, 1/4" keyway 50B24
DescriptionSteel sprocket for use with #50 roller chains. Steel SprocketThis 50B24 steel sprocket is manufactured...
$21.55
Sprocket 24 tooth, 1" bore, 1/4" keyway 41B24
DescriptionThe 24 tooth sprocket is for use with roller chains.24 Tooth SprocketThis 41B24 sprocket is...
$12.81
Sprocket 18 tooth, 1" bore, 1/4" keyway 50B18
DescriptionThis roller chain sprocket is an 18 tooth part. Roller Chain SprocketThe roller chain sprocket...
$12.89
Sprocket 12 tooth, 1" bore, 1/4" keyway
Description50B12 is a 12 tooth sprocket. Replacement Sprocket Replacement sprocket features for the 50B12 include the...
$12.89
Splice Plates 9
DescriptionHigh lift splice plates in this size measure 9". Steel Splice PlatesFeatures of these steel...
$2.27
Splice Plates 8
DescriptionThese splice plates are size 8". Splice Plates 8These splice plates measure 8" and are...
$2.22
Splice Plates 10
DescriptionHigh lift splice plates in this style are 10 gauge steel. Splice Plates #10 Features...
$2.34
Sheave Pulley with Stud 4"
DescriptionThis replacement pulley has six solid rivets and a 200LB load limit 6 solid rivets...
$5.94
Sheave Pulley Kit 4"
DescriptionThis four inch pulley kit comes with a sheave, strap and fasteners. Four inches Priced...
$4.41
Sheave Pulley Kit 3"
DescriptionThis three inch pulley kit is priced per each and includes a sheave, strap and...
$3.84
P528C
DescriptionP528C One piece door spring for Holmes Doors
$28.02
Napoleon 4 3/8ths Inch Flat End Bearing Plate Part # GDH 3-1-3
DescriptionPart # GDH 3-1-3 Garage Door Flat End Bearing Plate. Designed to support the end...
$3.75
Genie Sprocket Bushing 27222A
DescriptionThis replacement bushing part is a genuine Genie replacement part.This sprocket bushing replacement part is...
$0.59