COMP Cams MJ59-2 MaxJet Orifice Precision Carburetor Gasoline Jet - 0.059

The COMP Cams MJ59-2 MaxJet Precision Carburetor Gasoline Jet features a 0.059-inch orifice and is engineered to deliver repeatable, accurate fuel metering every time. Traditional flat-blade slot jets are prone to damage during installation, which can alter actual fuel delivery by significant margins — the MaxJet design eliminates this problem entirely.

Machined from 5/16-inch hex-stock brass, MaxJets are installed and removed with a standard 5/16-inch nut driver, protecting the orifice from the distortion commonly caused by screwdriver-style installation. The result is consistent, precise fuel delivery with every jet change.

Key Features:

• 0.059-inch orifice — part number directly reflects actual hole size for straightforward tuning
• Machined from 5/16 in. hex-stock brass for durability and precise tolerances
• Installed with a 5/16 in. nut driver — no screwdriver slot to damage
• Compatible with all known racing fuels
• Easily cross-referenced from Holley jet size 61
• Available in sizes from 0.050 in. to 0.120 in. in 0.001-inch increments (gasoline range)
• 1/4-32 thread — fits standard Holley-style carburetor jet bosses
• Sold as a pair (2 jets)

MaxJet carburetor jets are the tuner's choice for repeatable, race-day-accurate fuel delivery. Whether you're fine-tuning for weather conditions or dialing in a new combination, the COMP Cams MJ59-2 provides the consistency that slot-style jets simply cannot match.