A-B1694176-AI JET-MAIN

One New Aftermarket Replacement Carburetor Main Jet (High Altitude) Fits Briggs & Fits Stratton Small Engines

This carburetor main jet (Jet-Main) is a high-altitude replacement Fits Briggs & Fits Stratton (B&S) small engines used in lawn mowers and outdoor power equipment. The main jet meters fuel flow through the carburetor and regulates the fuel-air mixture for efficient combustion. A worn, clogged, or corroded main jet can cause hard starting, rough running, stalling, or poor acceleration. This part is specifically noted as the high-altitude variant, designed for use at elevations where a leaner fuel-air mixture is required for proper engine operation.

Compatible Engine Series

Fits Briggs & Fits Stratton 100000-19Z999 Series: 120400 to 120499, 121400 to 121499 (including engine codes 121402, 121412, 121432, and related variants), 123400 to 123499 (including 123432, 123435, 123437, and related variants). Fits carburetor group applications on these engine series. Use your full engine model and serial number to confirm fitment before ordering.

Replaces Part Number(s):

694176, A-B1694176-AI

Note: This is the high-altitude main jet variant. Verify your engine model and serial number to confirm this is the correct jet specification for your application before ordering.

New aftermarket replacement part - not remanufactured, not used.