Primer Bulb Shop Pack / Zama 0057004Pack Size:1Echo 12538108660, Stihl 4226 121 2700, Zama 0057004, Zama 0057003Dealer Choice 33-1301, J. Thomas PE-341, Laser 48157, Oregon 49-028, Prime Line 7-02380, Rotary 9948, Sunbelt SB-90924, Sunbelt 0057003, Sunbelt B10057003Echo most C1M, C1Q and C1U Zama carburetors; Stihl BG45, BG46, BG55, BG56, BG65, BG66, BG75, BG85, BG86, BR45, BT45, FC100, FC110, FC55, FC56, FC70, FC75, FC85, FC90, FH75, FR130, FR135,FR85, FS100, FS110, FS130, FS310, FS38-FS90, FT100, HL100, HL45, HL75, HL90, HL95, HS45, HS75, HS80, HS81, HS85,HS86, HT100, HT101, HT130, HT131, HT56, HT70, HT75, KA85, KM100, KM110, KM130, KM55, KM56, KM85, KM90, KR85, KW85, MM55, SH55, SH56, SH85, SH86, SP80, SP81, SP85 and SP90; Zama C1U and C1Q/M carburetorsOD: 13/16 ", Ethanol: Not compatible with greater than 10% ethanol fuel, Package of 10, Priced per pack, sold per pack