Specification Brand : Haiouus BulletPoint1 : Replaces Model: 121-5763, 125-2532, 126-0316, 131-4506, 131-4509. Each pulley kit is equipped with a black pvc dust cover above to prevent dust from entering the bearings. BulletPoint2 : Product specifications: length 2 3/4", height: 1", Hole: Inside diameter 7", Outer diameter 1.4". Includes two dust caps to prevent dust from entering the bearing. BulletPoint3 : Compatible With: Also used for the following models: Model: 20199 (TimeMaster 30in Lawn Mower) Model: 20200 (TimeMaster 30in Lawn Mower) Model: 20975 (TimeMaster 76cm Lawn Mower) Model: 20976 (TimeMaster 76cm Lawn Mower) Model: 20977 (TimeMaster 76cm Lawn Mower) Model: 20978 (TimeMaster 76cm Lawn Mower) BulletPoint4 : EASY TO INSTALL: This pulley comes with pre-installed bearings and requires no additional tools or installation steps. This not only makes the installation process easier, but also eliminates the concern that incorrect installation or excessive force could damage the pulley. Installation is very simple and can fit perfectly. BulletPoint5 : PREMIUM QUALITY MATERIAL: Undergoes strict quality inspection before shipment. It is characterized by high hardness, wear resistance and corrosion resistance. The structure of the pulley assembly has been optimized to reduce the friction and resistance between the pulley and the mower drive system. This minimizes wear and damage to the components, thereby increasing the efficiency of power transmission. BulletPoint6 : Quality service: For any inquiry email or information, we will provide the best possible service and solution for our customers. Please also check if your part number fits our product to ensure proper installation. Color : 2 Pack CompatibleDevices : Lawn Mower ExternallyAssignedProductIdentifier : 4050444205376 ExternallyAssignedProductIdentifier1 : 735299023989 ExternallyAssignedProductIdentifier2 : 0735299023989 ExternallyAssignedProductIdentifier3 : 0563213659842 ExternallyAssignedProductIdentifier4 : 0000124280005 GpsrSafetyAttestation : 1 HandOrientation : Ambidextrous ItemDisplayDimensions_Height : 10 millimeters ItemDisplayWeight : 5 pounds ItemName : 2(Pack) Haiouus 131-4529 Pulley kit/Mower Belt Idler Pulley, Compatible with T-oro 30" Deck Mower Also Replaces 131-4509 125-2532 ItemPackageDimensions_Height : 10.6 centimeters ItemPackageDimensions_Length : 7.4 centimeters ItemPackageDimensions_Width : 7.5 centimeters ItemPackageQuantity : 2 ItemTypeKeyword : lawn-mower-pulleys Manufacturer : Haiouus Material : Aluminum ModelNumber : 505158101 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 505158101 PowerSourceType : manual ProductDescription : Compatible With This part is used in The following models: Model: 20978 (TimeMaster 76cm Lawn Mower) Model: 21199 (TimeMaster 30in Lawn Mower) Model: 21199HD (TimeMaster 30in Lawn Mower (Home Depot Rental) Model: 21200 (TimeMaster 30in Lawn Mower) Model: 22200 (30in TurfMaster Walk-Behind Lawn Mower) Model: 22205TE (76cm TurfMaster Walk-Behind Lawn Mower) ProductExpirationType : Does Not Expire ProductSiteLaunchDate : 2022-02-22T09:01:52.210Z Size : 2 Spindle 2Blade 1Belt SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 24101600