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Product details
The PMO PM-O176-0 is the emulsion tube holder, often called the air jet holder, for PMO carburetors, and it threads into the carb to hold the emulsion tube and air corrector in the jet stack. EMPI, which distributes PMO Induction, catalogs it under the name Emulsion Tube Holder. The holder has no calibration of its own. The tuning comes from the parts it carries, and PMO's jet page lists EMPI F-series emulsion tubes (43-5670-0 through 43-5681-0) and air correction jets (43-5410-0 through 43-5421-0) for its carbs. PMO designed its carburetors to accept commercially available IDF floats and jets.
The air corrector sits on top of the emulsion tube. A larger air jet leans the mixture at high rpm, and a smaller one richens it. EMPI catalogs a different holder for its HPMX and Weber IDF carbs, 43-6440-0, so check before substituting one for the other.
Technical Details
- Manufacturer: PMO
- Manufacturer part number: PM-O176-0
- EMPI part name: Emulsion Tube Holder
- UPC: 707924552942
Fitment & Compatibility
Made for PMO carburetors on air-cooled Porsche 911 engines. For a Weber carburetor, compare length and thread with your existing holder before ordering, or call us.
Installation & Tuning Notes
Work on one stack at a time so parts do not get mixed between throats. PMO's carb sets leave the factory with specific emulsion tube and air corrector pairings (F11t tubes with 185 air correctors in the 40mm 2.4 to 2.7 liter Performance set, for example), so note what each stack holds before taking it apart.
Common Questions
Is an air jet holder the same thing as an emulsion tube holder?
Yes. This part carries the emulsion tube, with the air jet sitting on top.
Do I need a new holder to change jets?
No. Jets swap into your existing holder.
