The MIKUNI Main Jet (Series 04/042) manufactured by PROX is an essential component designed for MIKUNI carburetors, specifically the VM18 model along with VM, TM, and TMX carburetors. This high-quality main jet ensures optimal fuel flow and performance for your carburetor system. Crafted with precision, it meets the rigorous standards required for efficient engine operation. Ideal for those looking to replace or upgrade their existing carburetor main jet, this product promises reliability and durability. Ensure your carburetor performs at its best with the MIKUNI Main Jet from PROX.