Brand New Aftermarket Replacement Carburetor Repair Rebuild Overhaul Kit. This Carb Kit is Compatible with Stihl 044 Chainsaw Chain Saw with C3M-S5D, C3M-S5E, C3M-S5G, C3M-S12A, C3M-S20, C3M-S21, C3M-S22, C3M-S23 and C3M-S24 Carburetors. Replaces Zama RB-36, RB36.