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Each Spring is designed for different carburetor bodies/throttle shafts. If you need help, use one of our carburetor reference sheets on our technical page or call us for the correct spring.
We recommend having two forms of throttle return spring(throttle shaft, throttle lever, throttle cable, throttle rod, etc.) on your throttle if possible.
24B-381 OE Tillotson Throttle Shaft Return Spring fits HL-227E, HL-231E, HL-304E, HL-304WX, HL-334A, HL-334B, HL-334AA, HL-334AB, HL-334WX,HL-348F, HL-350A, HL-360A, HL-375A, HL-384A, HL-384B, HL-385A,HL-388A, HW-10A, HW-11A, HW-12A