Specification Brand : BlueStars BulletPoint1 : BulletPoint10 : Save yourself the hassle of returns and exchanges by double-checking your engine's model number and part number before ordering any parts. BulletPoint2 : ✅ PERFECT FIT: Replaces 99944200903, X047000940. Compatible with Echo SRM-266, SRM-266S, SRM-266T, SRM-266U, SRM-280, SRM-280S, SRM-280T String Trimmer. Fits for SRM-266U 25.4cc Straight Shaft Trimmer/Brushcutter; SRM-266S (T42211001001-T42211999999), SRM-266S (T42312001001-T42312999999), SRM-266S (T43313001001-T43313999999) Steel Drive Shaft Trimmer BulletPoint3 : ✅ WIDE COMPATIBILITY: Fits for SRM-266T (T42411001001-T42411999999), SRM-266T (T42512001001-T42512999999), SRM-266T (T43413001001-T43413999999) High Torque Trimmer; SRM-266U (T42712001001 - T42712999999), SRM-266U (T43513001001 - T43513999999) Straight Shaft Trimmer / Brushcutter BulletPoint4 : ✅ FIX YOUR BROKEN TRIMMER: Our 99944200903 Trimmer Head will fix the most common problems of your trimmer such as stuck trimmer head, the trimmer does not spin, or the threads stripping. These are signs that your trimmer head needs changing and our product is exactly what you need BulletPoint5 : ✅ EXTREMELY DURABLE: It is made from hard and sturdy metal and impact-resistant plastic that promises great durability while reducing the risk of breaks or cracks. The material combination is optimized for a prolonged lifetime BulletPoint6 : ✅ BulletPoint7 : [DEPENDABLE ENGINE PERFORMANCE]: Each FG100 carburetor is wet flow tested to simulate actual engine conditions. BulletPoint8 : [QUALITY MATERIAL, QUALITY CARBURETOR]: Resistant to heat, corrosion, and wear by utilizing brass components, composite rubber diaphragms, and anodized aluminum carburetor body. BulletPoint9 : [ARRIVES READY TO RUN]: Factory precisely tuned, no adjustment needed. Color : As pictured CompatibleWithVehicleType : Tiller,Engine CuttingWidth : 1 inches ExternallyAssignedProductIdentifier : 6487474141752 ExternallyAssignedProductIdentifier1 : 0049438307428 ExternallyAssignedProductIdentifier2 : 049438307428 FitType : Vehicle Specific Hazmat1 : DANGEROUS GOODS IN APPARATUS Hazmat10 : DE_Unregulated Hazmat11 : EG_Unregulated Hazmat12 : ES_Unregulated Hazmat13 : FR_Unregulated Hazmat14 : GB_Unregulated Hazmat15 : IN_Unregulated Hazmat16 : IT_Unregulated Hazmat17 : JP_Unregulated Hazmat18 : MX_Unregulated Hazmat19 : NL_Unregulated Hazmat2 : UN3363 Hazmat20 : PL_Unregulated Hazmat21 : SA_Unregulated Hazmat22 : SE_Unregulated Hazmat23 : SG_Unregulated Hazmat24 : TR_Unregulated Hazmat25 : US_Unregulated Hazmat26 : ZA_Unregulated Hazmat27 : ZA_SmallLithiumIonBatteryWithEquipment Hazmat3 : 9 Hazmat4 : AE_Unregulated Hazmat5 : AU_Unregulated Hazmat6 : BE_Unregulated Hazmat7 : BR_Unregulated Hazmat8 : CA_Unregulated Hazmat9 : CN_Unregulated IncludedComponents : carburetor, air filter, fuel hose, spark plug, primer bulb, gasket,gromment IsAssemblyRequired : 1 ItemName : BlueStars 99944200903 Speed-Feed 450 Trimmer Head - for Echo SRM-266 SRM-266S SRM-266T SRM-266U SRM-280 SRM-280S SRM-280T String Trimmer Brush Cutter Straight Shaft Trimmer - Replaces X047000940 ItemPackageDimensions_Height : 15.494 centimeters ItemPackageDimensions_Length : 6.7056 centimeters ItemPackageDimensions_Width : 13.7922 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : string-trimmer-replacement-parts ItemTypeName : 99944200903 Trimmer Head Manufacturer : BlueStars Material : Metal, Aluminum ModelName : 99944200903 Speed-Feed 450 Trimmer Head ModelNumber : 99944200903 NumberOfBoxes : 1 NumberOfItems : 1 OeManufacturer : Honda OperationMode : Automatic PartNumber : 99944200903 450 PowerSourceType : ac_dc ProductDescription : SPECIFICATION Trimmer head diameter: 4-1/2 inch 10mm x 1.25mm LH thread FIX YOUR BROKEN TRIMMER Our 99944200903 Trimmer Head will fix the most common problems of your trimmer such as stuck trimmer head, the trimmer does not spin, or the threads stripping. These are signs that your trimmer head needs changing and our product is exactly what you need. PERFECT FIT BlueStars 99944200903 Trimmer Head replaces part # 99944200903, 78890-21001, X047000940, 385-288. It fits Echo SRM-266 (S/N T41913001001 - T41913999999; T42011001001 - T42011999999; T42112001001 - T42112999999; etc.), SRM-266S Steel Drive Shaft Trimmer, SRM-266T (S/N T42411001001 - T42411999999; T42512001001 - T42512999999; etc.), SRM-266U 25.4cc Straight Shaft Trimmer/Brushcutter, SRM-280, SRM-280S, SRM-280T, etc. EXTREMELY DURABLE The Trimmer Head is made from hard and sturdy metal and impact-resistant plastic that promises great durability while reducing the risk of breaks or cracks. The material combination is optimized for a prolonged lifetime. EASY TO INSTALL It is simple for both professional mechanics and DIY enthusiasts to quickly and efficiently replace the 99944200903 Trimmer Head. Please remind that safety first by wearing safety glasses and gloves before repairing. 100% LIFETIME WARRANTY Customer satisfaction is our relentless focus. If for any reason you're not completely satisfied, we will compensate you and offer extra benefits to ensure your rights. Buy with confidence! ProductSiteLaunchDate : 2021-03-12T02:42:34.873Z RecommendedUsesForProduct : Lawn Mower SafetyWarning : Safety glasses and gloves recommended during installation. SpecificUsesForProduct : Engine,Tiller,Trimmer,Mower SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1