This idle jet holder has a 4mm hole to accept the Weber 32/36 DGAV Primary (Large) Idle Jet (Part No. 74409, sold separately). The body has 8 x 1.0mm male threads. It is only used on the primary side of certain DGAV / DGEV and DGV carburetors. It can be used to eliminate the idle shut-off solenoid on those carbs. Sold individually; only one needed per carburetor. Requires an Idle Jet Holder O-Ring (Part No. WC-41565.009, sold separately). Does not include the idle jet.
Note: Not all DGAV and DGV carburetors use this size. The primary side of most DGV / DGAV / DGEV carburetors (and the secondary side of all DGV/DGAV/DGEV), takes the smaller Small Idle Jet Holder, Part No. WC-52570.006. The smaller jet holder has M6 (6 x 1.0mm) threads.