Specification Brand : UPALDHOU BulletPoint1 : [Easy Installation] Simple to install, serves as a direct replacement, saving time and effort for users. BulletPoint2 : [Oe Number Verified] Oe numbers 530047721, 683974, 791‑683974 b, 188‑512, 188‑512‑1 ensure compatibility and quality. BulletPoint3 : [Professional Performance] Exquisitely manufactured for stable, efficient, and primer bulb function. BulletPoint4 : [Fit for Various Brands] Fit for stihl, , , , , ryobi, , , and more. BulletPoint5 : [Premium Material] Made of high-strength abs material for wear and durability. ExternallyAssignedProductIdentifier : 4550414088041 ExternallyAssignedProductIdentifier1 : 0042228022549 ExternallyAssignedProductIdentifier2 : 042228022549 FitType : Universal IncludedComponents : No ItemName : 4 Pcs Chainsaw Primer Bulb, Primer Bulb 530047721 Chainsaw Parts Replacement for STIHL MS192T MS192TC MS211 MS211C ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sash-chains Manufacturer : UPALDHOU Material : Stainless steel (SUS304); Surface treatment: Barrel polished finish ModelName : UPALDHOUdq2wmgco83 ModelNumber : UPALDHOUdq2wmgco83 NumberOfItems : 1 PackageLevel : unit PartNumber : UPALDHOUdq2wmgco83 ProductDescription : Spec: Item Type: Primer Bulb Material: ABS Height: Approx. 31.4 mm /1.236 in Width: Approx. 21.4 mm /0.842 in Replace Part Number: 530047721, 683974, 791-683974 B, 188-512, 188-512-1 Fitment: Fit for HLT28 ST145 ST155 Fit for 791-181558 791-683974 Fit for LESCO CHAINSAW Fit for 530047721 Fit for 01183 188-512 Fit for CHAINSAW TRIMMER UP04033 Fit for 282 SILVER EAGLE 28 32 2818 Fit for 4600 5000 3020 4700 2012 Fit for STIHL FS250 Fit for RYOBI BLOWER TRIMMER PART 181558 Fit for MTD BULB 01183/791-683974 Fit for RYOBI IDC 683974B Fit for RYOBI MTD YM1500 Y780 Y765 Y725 Y700VP Fit for BCS35 D3300C D3350B D3800 Fit for 25AV 27AV ALL Fit for 4600 5000 3020 4700 2012 Fit for 683974 791-683974 683974B Fit for I3350B I3850B I4150B N3014 Fit for RYOBI UP04033 300780004 300780001 Fit for CS50 CS4018 CS5020 Fit for ROADRUNNER SILVER EAGLE Fit for D4150B D450B D4550BC CS40 Fit for B2014 B2316 B2718 B2720 Fit for D4400B I4400B Z4400 Fit for WT WYJ WYK CARBURETOR Fit for ZAMA BG55 BG65 BG66 BG75 BG86 Fit for STIHL FOR BR500 BR550 BR600 Fit for RYOBI PRIMER BULB A056013 Fit for EAGER BEAVER 327BC 32BCS 285 Fit for WT-23A WYJ-33 WYJ-34 WYJ-45 Fit for N3316 SUPER Fit for JONSERED Fit for RYOBI MTD MT700 Fit for RYOBI BLOWER TRIMMER Fit for RYOBI TRIMMER BRUSHCUTTER GRASS SCORPION RCT2800A RST285A Fit for 503936601 325 326 334 338 356 Fit for POULAN PART 530047721 PRIMER BULB PUMP Fit for RYOBI BLOWER TRIMMER 181558 Fit for RANGER 33CC 252 CS40 SNAP IN PRIMER BULB PUMP UP04033, 300780001