HJ300-4 Mikuni hex head main jets 4/042, size 300

When you need to move more fuel through your Mikuni carburetor, these EBC hex head main jets are the right choice. Manufactured by A-BAX Precision Engineering, these 4/042 style jets are built for accuracy and reliability. This size 300 jet features a 6mm hex head and M5.3 x 0.9 threads, fitting perfectly into Mikuni VM series carburetors like the VM-18, VM24-512, and VM26-606, as well as TMX models. Sold as a pack of four, these jets are essential for high-performance tuning. The precision-drilled orifice ensures a consistent flow rate, which is critical for maintaining a stable air-fuel ratio at high speeds. Trust these high-quality brass jets to keep your intake system performing at its peak.