Holley Carburetor Standard Main Jet HO 122-59 Fuel Metering Jet

PRODUCT OVERVIEW

The Holley Carburetor Standard Main Jet HO 122-59 is a precision-calibrated fuel metering jet designed for use in compatible Holley carburetors. It helps fine-tune air/fuel ratios for reliable performance, drivability, and tuning accuracy.

KEY FEATURES

• Genuine Holley standard main jet
• Part number: HO 122-59
• Precision-machined for consistent fuel metering
• Suitable for tuning and calibration of Holley carburetors
• Durable construction for long service life

APPLICATION NOTES

This part is sold as a carburetor component and may be used across various Holley carburetor models, depending on jet size requirements. No specific vehicle compatibility data is provided.

Always confirm the correct jet size and compatibility with your carburetor or tuner before purchase.

SPECIFICATIONS

• Brand: Holley
• Part number: HO 122-59
• Component type: Standard main jet
• Category: Fuel & exhaust / carburetor components

INSTALLATION

• Professional installation or tuning is recommended
• Verify jet size against your current carburetor setup before fitting
• Recheck air/fuel ratios and engine operation after installation and tuning